Button without action listener

I wanto to know if somebody will create
a button without action listener???.
JC

but.. Buttons are created without ActionLiteners, you have to add them yourself...
and.. without ActionListener, whats going to happen when you click the Button?
you could use awt.Button.processEvent() in a subclass of Button, but then you would have to give that subclass some sort of access to the program class or its methods anyway

Similar Messages

Custom button with action listener - will not invoke action listener

Hi
For whatever reason, I cannot find a concise example of a simple custom component that can invoke an action listener. The tutorials I've read so far either ignore this fundamental topic or only make the slightest make reference to it.
The best I have come up with - in terms of a simple prototype is below... but, the action listener is never invoked.... Can someone tell me what I am missing (full code below). Hopefully, what is missing or incorrect will be obvious to you JSF experts out there.
Thanks for any help!!
-f
tld
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN" "http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd">
<taglib>
<tlib-version>0.01</tlib-version>
<jsp-version>1.2</jsp-version>
<short-name>jsfcustomcomponent</short-name>
<uri>http://jsfcustomcomponent/</uri>
<description><![CDATA[jsf custom component tags]]> </description>
<tag>
    <name>specialBtnTag</name>
    <tag-class>jsfcustomcomponent.SpecialBtnTag</tag-class>
    <attribute>
      <name>value</name>
      <required>true</required>
      <rtexprvalue>true</rtexprvalue>
      <description><![CDATA[button value]]></description>
    </attribute>
    <attribute>
      <name>actionListener</name>
      <required>true</required>
      <rtexprvalue>true</rtexprvalue>
      <description><![CDATA[action listener]]> </description>
    </attribute>
</tag>
</taglib>
SpecialBtnComponent
package jsfcustomcomponent;
import javax.faces.component.*;
import javax.faces.context.*;
import javax.faces.el.*;
import javax.faces.event.*;
public class SpecialBtnComponent
    extends UIComponentBase implements ActionSource
    public static final String COMPONENT_TYPE = "SpecialBtnComponent";
    public static final String RENDERER_TYPE = "SpecialBtnRenderer";
    public String getFamily()
        return COMPONENT_TYPE;
    public SpecialBtnComponent()
        super();
        setRendererType(SpecialBtnComponent.RENDERER_TYPE);
    private String value;
    public void setValue(String value, FacesContext facesContext)
        this.value = value;
    public String getValue()
        if (null != value)
            return value;
        ValueBinding _vb = getValueBinding("value");
        if (_vb != null)
            return (String) _vb.getValue(getFacesContext());
        else
            return null;
    private MethodBinding action = null;
    public MethodBinding getAction()
        return action;
    public void setAction(MethodBinding methodBinding)
        this.action = action;
    private MethodBinding actionListener = null;
    public MethodBinding getActionListener()
        return (this.actionListener);
    public void setActionListener(MethodBinding methodBinding)
        this.actionListener = actionListener;
    public boolean isImmediate()
        return false;
    public void setImmediate(boolean _boolean)
        //this.immediate = immediate;
    public void addActionListener(ActionListener actionListener)
        addFacesListener(actionListener);
    public ActionListener[] getActionListeners()
        return (ActionListener[]) getFacesListeners(ActionListener.class);
    public void removeActionListener(ActionListener actionListener)
        removeFacesListener(actionListener);
    public Object saveState(FacesContext context)
        Object values[] = new Object[5];
        values[0] = super.saveState(context);
        values[1] = value;
        values[2] = saveAttachedState(context, action);
        values[3] = saveAttachedState(context, actionListener);
        return ( (Object) (values));
    public void restoreState(FacesContext context, Object state)
        Object values[] = (Object[]) state;
        super.restoreState(context, values[0]);
        value = (String) values[1];
        action = (MethodBinding) restoreAttachedState(context, values[2]);
        actionListener = (MethodBinding) restoreAttachedState(context, values[3]);
    public void broadcast(FacesEvent event) throws AbortProcessingException
        super.broadcast(event);
        if (event instanceof ActionEvent)
            FacesContext context = getFacesContext();
            MethodBinding mb = getActionListener();
            if (mb != null)
                mb.invoke(context, new Object[]
                          {event});
            ActionListener listener = context.getApplication().getActionListener();
            if (listener != null)
                listener.processAction( (ActionEvent) event);
    public void queueEvent(FacesEvent e)
        if (e instanceof ActionEvent)
            if (isImmediate())
                e.setPhaseId(PhaseId.APPLY_REQUEST_VALUES);
            else
                e.setPhaseId(PhaseId.INVOKE_APPLICATION);
        super.queueEvent(e);
SpecialBtnRenderer
package jsfcustomcomponent;
import java.util.*;
import javax.faces.component.*;
import javax.faces.context.*;
import javax.faces.event.*;
import javax.faces.render.*;
public class SpecialBtnRenderer
    extends Renderer
    String value;
    public SpecialBtnRenderer()
    public void decode(FacesContext context, UIComponent component)
        Map requestMap = context.getExternalContext().getRequestParameterMap();
        String clientId = component.getClientId(context);
        SpecialBtnComponent specialBtnComponent = (SpecialBtnComponent) component;
        String value = (String) requestMap.get(clientId);
        if (null != value)
            specialBtnComponent.setValue(value, context);
        ActionEvent actionEvent = new ActionEvent(specialBtnComponent);
        specialBtnComponent.queueEvent(actionEvent);
    public void encodeEnd(FacesContext context, UIComponent component) throws java.io.IOException
        SpecialBtnComponent specialBtnComponent = (SpecialBtnComponent) component;
        ResponseWriter writer = context.getResponseWriter();
        String clientId = component.getClientId(context);
        value = (String) component.getAttributes().get("value");
        if (value == null)
            value = "defaultValue";
        buildSpecialBtn(writer, value, clientId, specialBtnComponent);
    private void buildSpecialBtn(ResponseWriter writer, String value, String clientId, SpecialBtnComponent component) throws java.io.IOException
        writer.startElement("table", component);
        writer.startElement("tbody", component);
        writer.startElement("tr", component);
        writer.startElement("td", component);
        value = String.valueOf(value);
        writer.startElement("input", component);
        writer.writeAttribute("type", "submit", null);
        writer.writeAttribute("name", clientId, "clientId");
        writer.writeAttribute("value", value, null);
        writer.endElement("input");
        writer.endElement("td");
        writer.endElement("tr");
        writer.endElement("tbody");
        writer.endElement("table");
SpecialBtnTag
package jsfcustomcomponent;
import javax.faces.component.*;
import javax.faces.el.*;
import javax.faces.webapp.*;
import com.sun.faces.util.*;
public class SpecialBtnTag
    extends UIComponentTag
    public String value = null;
    public String actionListener = null;
    public String getComponentType()
        return SpecialBtnComponent.COMPONENT_TYPE;
    public String getRendererType()
        return SpecialBtnComponent.RENDERER_TYPE;
    protected void setProperties(UIComponent component)
        super.setProperties(component);
        if (! (component instanceof SpecialBtnComponent))
            throw new IllegalStateException("Component " + component.toString() +
                                            " not expected type. Expected: jsfcustomcomponent.SpecialBtnComponent. Perhaps you�re missing a tag?");
        SpecialBtnComponent specialBtnComponent = (SpecialBtnComponent) component;
        if (value != null)
            if (isValueReference(value))
                ValueBinding vb = Util.getValueBinding(value);
                specialBtnComponent.setValueBinding("value", vb);
            else
                throw new IllegalStateException("The value for �value� must be a ValueBinding.");
        if (actionListener != null)
            if (isValueReference(actionListener))
                ValueBinding vb = Util.getValueBinding(actionListener);
                specialBtnComponent.setValueBinding("actionListener", vb);
            else
                throw new IllegalStateException("The value for �actionListener� must be a ValueBinding.");
    public void release()
        super.release();
        value = null;
        actionListener = null;
    public void setValue(String value)
        this.value = value;
    public String getValue()
        return this.value;
    public void setActionListener(String actionListener)
        this.actionListener = actionListener;
    public String getActionListener()
        return this.actionListener;
jsp1.jsp
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@taglib uri="http://jsfcustomcomponent/" prefix="j"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
<link rel="stylesheet" type="text/css" href="./stylesheet.css" title="Style">
</head>
<body>
<f:view>
<h:form id="form01">
    <h:outputText value="test special button with action listener"/>
    <j:specialBtnTag value="#{specialBtnBacking.specialBtnValue}" actionListener="#{specialBtnBacking.specialBtnActionListener}"/>
    <h:messages/>
    <h:outputText value="#{specialBtnBacking.outcome}"/>
</h:form>
</f:view>
</body>
</html>
SpecialBtnBacking
package specialbtn;
import javax.faces.context.*;
import javax.faces.event.*;
public class SpecialBtnBacking
    private FacesContext context;
    public SpecialBtnBacking()
        this.setSpecialBtnValue("Special Button with action listener");
    private String specialBtnValue;
    public String getSpecialBtnValue()
        return this.specialBtnValue;
    public void setSpecialBtnValue(String specialBtnValue)
        this.specialBtnValue = specialBtnValue;
    private String outcome="actionlistener NOT invoked: click specialBtn above to test";
    public String getOutcome()
        return outcome;
    public void setOutcome(String outcome)
        this.outcome = outcome;
    public void specialBtnActionListener(ActionEvent evt)
        System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Jsp1Backing/specialBtnActionListener()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
        this.outcome="***action listener invoked!!!***";
faces-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE faces-config PUBLIC "-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.1//EN" "http://java.sun.com/dtd/web-facesconfig_1_1.dtd">
<faces-config>
<managed-bean>
    <managed-bean-name>specialBtnBacking</managed-bean-name>
    <managed-bean-class>specialbtn.SpecialBtnBacking</managed-bean-class>
    <managed-bean-scope>request</managed-bean-scope>
</managed-bean>
<component>
    <component-type>SpecialBtnComponent</component-type>
    <component-class>jsfcustomcomponent.SpecialBtnComponent</component-class>
    <component-extension>
      <renderer-type>SpecialBtnRenderer</renderer-type>
    </component-extension>
</component>
<render-kit>
    <renderer>
      <component-family>SpecialBtnComponent</component-family>
      <renderer-type>SpecialBtnRenderer</renderer-type>
      <renderer-class>jsfcustomcomponent.SpecialBtnRenderer</renderer-class>
    </renderer>
</render-kit>
</faces-config>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4">
<display-name>pagerWEB</display-name>
<servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.faces</url-pattern>
</servlet-mapping>
<jsp-config>
    <taglib>
      <taglib-uri>http://jsfcustomcomponent/</taglib-uri>
      <taglib-location>/WEB-INF/jsfcustomcomponent.tld</taglib-location>
    </taglib>
</jsp-config>
<servlet>
    <description>Added by JBuilder to compile JSPs with debug info</description>
    <servlet-name>debugjsp</servlet-name>
    <servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
    <init-param>
      <param-name>classdebuginfo</param-name>
      <param-value>true</param-value>
    </init-param>
    <load-on-startup>3</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>debugjsp</servlet-name>
    <url-pattern>*.jsp</url-pattern>
</servlet-mapping>
</web-app>

got it working....
The changes were:
in "SpecialBtnRenderer"...
--new--
                    mb.invoke(context, new Object[1]);
--old--
                    mb.invoke(context, new Object[0]);
in "SpecialBtnTag"...
--new--
import javax.faces.event.ActionEvent;
--new--
                MethodBinding mb = FacesContext.getCurrentInstance().getApplication().createMethodBinding(specialBtnListener, new Class[]{ActionEvent.class});
--old--
                MethodBinding mb = FacesContext.getCurrentInstance().getApplication().createMethodBinding(specialBtnListener, null);
-Below is the entire application, again -- for those (like myself) who need concrete examples...
I hope this helps someone else! --f
jsp1.jsp
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@taglib uri="http://jsfcustomcomponent/" prefix="j"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
<link rel="stylesheet" type="text/css" href="./stylesheet.css" title="Style">
</head>
<body>
<f:view>
    <h:messages/>
<h:form id="form01">
    <h:outputText value="test special button with action listener"/>
    <j:specialBtnTag value="#{specialBtnBacking.specialBtnValue}" specialBtnListener="#{specialBtnBacking.specialBtnActionListener}"/>
    <h:outputText value="#{specialBtnBacking.outcome}"/>
</h:form>
</f:view>
</body>
</html>
SpecialBtnBacking
package specialbtn;
import javax.faces.context.*;
import javax.faces.event.*;
public class SpecialBtnBacking
    private FacesContext context;
    public SpecialBtnBacking()
        this.setSpecialBtnValue("Special Button with action listener");
    private String specialBtnValue;
    public String getSpecialBtnValue()
        return this.specialBtnValue;
    public void setSpecialBtnValue(String specialBtnValue)
        this.specialBtnValue = specialBtnValue;
    private String outcome = "actionlistener NOT invoked: click specialBtn above to test";
    public String getOutcome()
        return outcome;
    public void setOutcome(String outcome)
        this.outcome = outcome;
    public void specialBtnActionListener(ActionEvent evt)
        System.out.println("\n\n");
        System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Jsp1Backing/specialBtnActionListener()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
        System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Jsp1Backing/specialBtnActionListener()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
        System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Jsp1Backing/specialBtnActionListener()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
        System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Jsp1Backing/specialBtnActionListener()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
        System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Jsp1Backing/specialBtnActionListener()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n\n");
        this.outcome = "***action listener invoked!!!***";
jsfcustomcomponent.tld
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN" "http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd">
<taglib>
<tlib-version>0.01</tlib-version>
<jsp-version>1.2</jsp-version>
<short-name>jsfcustomcomponent</short-name>
<uri>http://jsfcustomcomponent/</uri>
<description><![CDATA[jsf custom component tags]]> </description>
<tag>
    <name>specialBtnTag</name>
    <tag-class>jsfcustomcomponent.SpecialBtnTag</tag-class>
    <attribute>
      <name>value</name>
      <required>true</required>
      <rtexprvalue>true</rtexprvalue>
      <description><![CDATA[button value]]></description>
    </attribute>
    <attribute>
      <name>specialBtnListener</name>
      <required>true</required>
      <rtexprvalue>true</rtexprvalue>
      <description><![CDATA[action listener]]> </description>
    </attribute>
</tag>
</taglib>
faces-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE faces-config PUBLIC "-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.1//EN" "http://java.sun.com/dtd/web-facesconfig_1_1.dtd">
<faces-config>
<managed-bean>
    <managed-bean-name>specialBtnBacking</managed-bean-name>
    <managed-bean-class>specialbtn.SpecialBtnBacking</managed-bean-class>
    <managed-bean-scope>request</managed-bean-scope>
</managed-bean>
<component>
    <component-type>SpecialBtnComponent</component-type>
    <component-class>jsfcustomcomponent.SpecialBtnComponent</component-class>
    <component-extension>
      <renderer-type>SpecialBtnRenderer</renderer-type>
    </component-extension>
</component>
<render-kit>
    <renderer>
      <component-family>SpecialBtnComponent</component-family>
      <renderer-type>SpecialBtnRenderer</renderer-type>
      <renderer-class>jsfcustomcomponent.SpecialBtnRenderer</renderer-class>
    </renderer>
</render-kit>
</faces-config>
SpecialBtnComponent.java
package jsfcustomcomponent;
import javax.faces.component.*;
import javax.faces.context.*;
import javax.faces.el.*;
import javax.faces.event.*;
public class SpecialBtnComponent
    extends UIComponentBase implements ActionSource
    public static final String COMPONENT_TYPE = "SpecialBtnComponent";
    public static final String RENDERER_TYPE = "SpecialBtnRenderer";
    public String getFamily()
        return COMPONENT_TYPE;
    public SpecialBtnComponent()
        super();
        setRendererType(SpecialBtnComponent.RENDERER_TYPE);
    private String value;
    public void setValue(String value, FacesContext facesContext)
        this.value = value;
    public String getValue()
        if (null != this.value)
            return this.value;
        ValueBinding _vb = getValueBinding("value");
        if (_vb != null)
            return (String) _vb.getValue(getFacesContext());
        else
            return null;
    private MethodBinding specialBtnListener = null;
    public MethodBinding getActionListener()
        return (this.specialBtnListener);
    public void setActionListener(MethodBinding actionListener)
        this.specialBtnListener = actionListener;
    public Object saveState(FacesContext context)
        Object values[] = new Object[3];
        values[0] = super.saveState(context);
        values[1] = saveAttachedState(context, this.specialBtnListener);
        values[2] = this.value;
        return (values);
    public void restoreState(FacesContext context, Object state)
        Object values[] = (Object[]) state;
        super.restoreState(context, values[0]);
        this.specialBtnListener = (MethodBinding) restoreAttachedState(context, values[1]);
        this.value = (String) restoreAttachedState(context, values[2]);
    public void broadcast(FacesEvent event) throws AbortProcessingException
        super.broadcast(event);
        if (event instanceof ActionEvent)
            FacesContext context = getFacesContext();
            MethodBinding mb = this.getActionListener();
            if (mb != null)
                try
                    mb.invoke(context, new Object[]
                              {event});
                catch (EvaluationException ex)
                    System.out.println("SpecialBtnComponent/broadcast(FacesEvent event)...EvaluationException encountered - ex.getMessage()=" + ex.getMessage());
                    ex.printStackTrace();
            ActionListener actionListener = context.getApplication().getActionListener();
            if (actionListener != null)
                actionListener.processAction( (ActionEvent) event);
    public void queueEvent(FacesEvent e)
        if (e instanceof ActionEvent)
            e.setPhaseId(PhaseId.INVOKE_APPLICATION);
        super.queueEvent(e);
    public MethodBinding getAction()
        return null;
    public void setAction(MethodBinding methodBinding)
    public boolean isImmediate()
        return false;
    public void setImmediate(boolean _boolean)
    public void addActionListener(ActionListener actionListener)
        addFacesListener(actionListener);
    public ActionListener[] getActionListeners()
        return (ActionListener[]) getFacesListeners(ActionListener.class);
    public void removeActionListener(ActionListener actionListener)
        removeFacesListener(actionListener);
SpecialBtnTag.java
package jsfcustomcomponent;
import javax.faces.component.*;
import javax.faces.el.*;
import javax.faces.webapp.*;
import com.sun.faces.util.*;
import javax.faces.context.FacesContext;
import javax.faces.event.ActionEvent;
public class SpecialBtnTag
    extends UIComponentTag
    public String value = null;
    public String specialBtnListener = null;
    private SpecialBtnComponent specialBtnComponent;
    public SpecialBtnTag()
        super();
    public String getComponentType()
        return SpecialBtnComponent.COMPONENT_TYPE;
    public String getRendererType()
        return SpecialBtnComponent.RENDERER_TYPE;
    protected void setProperties(UIComponent component)
        super.setProperties(component);
        if (! (component instanceof SpecialBtnComponent))
            throw new IllegalStateException("Component " + component.toString() +
                                            " not expected type. Expected: jsfcustomcomponent.SpecialBtnComponent. Perhaps you�re missing a tag?");
        specialBtnComponent = (SpecialBtnComponent) component;
        if (value != null)
            if (isValueReference(value))
                ValueBinding vb = Util.getValueBinding(value);
                specialBtnComponent.setValueBinding("value", vb);
            else
                throw new IllegalStateException("The value for �value� must be a ValueBinding.");
        if (specialBtnListener != null)
            if (isValueReference(specialBtnListener))
                MethodBinding mb = FacesContext.getCurrentInstance().getApplication().createMethodBinding(specialBtnListener, new Class[]{ActionEvent.class});
                ( (SpecialBtnComponent) component).setActionListener(mb);
            else
                MethodBinding mb = Util.createConstantMethodBinding(specialBtnListener);
                ( (SpecialBtnComponent) component).setActionListener(mb);
    public void release()
        super.release();
        value = null;
        specialBtnListener = null;
    public void setValue(String value)
        this.value = value;
    public String getValue()
        return this.value;
    public void setSpecialBtnListener(String specialBtnListener)
        this.specialBtnListener = specialBtnListener;
    public String getSpecialBtnListener()
        return this.specialBtnListener;
SpecialBtnRenderer
package jsfcustomcomponent;
import java.util.*;
import javax.faces.component.*;
import javax.faces.context.*;
import javax.faces.event.*;
import javax.faces.render.*;
import javax.faces.el.MethodBinding;
import javax.faces.el.*;
public class SpecialBtnRenderer
    extends Renderer
    String value;
    public SpecialBtnRenderer()
        super();
    public void decode(FacesContext context, UIComponent component)
        try
            Map requestMap = context.getExternalContext().getRequestParameterMap();
            String clientId = component.getClientId(context);
            SpecialBtnComponent specialBtnComponent = (SpecialBtnComponent) component;
            String value = (String) requestMap.get(clientId);
            if (null != value)
                specialBtnComponent.setValue(value, context);
                MethodBinding mb = specialBtnComponent.getActionListener();
                if (mb != null)
                    System.out.println("SpecialBtnRenderer/decode...mb.getExpressionString()=" + mb.getExpressionString());
                    //mb.invoke(context, new Object[0]);
                    mb.invoke(context, new Object[1]);
                ActionEvent actionEvent = new ActionEvent(specialBtnComponent);
                specialBtnComponent.queueEvent(actionEvent);
        catch (EvaluationException ex)
            ex.printStackTrace();
    public void encodeEnd(FacesContext context, UIComponent component) throws java.io.IOException
        SpecialBtnComponent specialBtnComponent = (SpecialBtnComponent) component;
        ResponseWriter writer = context.getResponseWriter();
        String clientId = component.getClientId(context);
        value = (String) component.getAttributes().get("value");
        if (value == null)
            value = "defaultValue";
        buildSpecialBtn(writer, value, clientId, specialBtnComponent);
    private void buildSpecialBtn(ResponseWriter writer, String value, String clientId, SpecialBtnComponent component) throws java.io.IOException
        writer.startElement("table", component);
        writer.startElement("tbody", component);
        writer.startElement("tr", component);
        writer.startElement("td", component);
        value = String.valueOf(value);
        writer.startElement("input", component);
        writer.writeAttribute("type", "submit", null);
        writer.writeAttribute("name", clientId, "clientId");
        writer.writeAttribute("value", value, null);
        writer.endElement("input");
        writer.endElement("td");
        writer.endElement("tr");
        writer.endElement("tbody");
        writer.endElement("table");
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4">
<display-name>pagerWEB</display-name>
<servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.faces</url-pattern>
</servlet-mapping>
<jsp-config>
    <taglib>
      <taglib-uri>http://jsfcustomcomponent/</taglib-uri>
      <taglib-location>/WEB-INF/jsfcustomcomponent.tld</taglib-location>
    </taglib>
</jsp-config>
</web-app>

Balloon message without action listener.

Hi all,
I want to add a balloon message without a action performed. I mean when the icon is loaded to the tray want to display it.
Check the displayMessage() in tray icon class in several way, but no luck. Can you give me a hint that how to do it.
thanks

augustocallejas, please don't post in threads that are long dead and don't hijack another poster's thread. When you have a question, start your own topic. Feel free to provide a link to an old post that may be relevant to your problem.
I'm locking this thread now.
db

Calling action listener for a BUTTON component in java bean page

Hi,
I have made it like this.
public void handleButtonPressed(ActionEvent event){
System.out.println("success!!!!!");
//code for calling actionlistener
FacesContext fctx = FacesContext.getCurrentInstance();
ELContext elctx = fctx.getELContext();
Application application = fctx.getApplication();
ExpressionFactory exprFactory = application.getExpressionFactory();
MethodExpression methodExpr = null;
methodExpr = exprFactory.createMethodExpression(elctx, "#{exbean.handleButtonPressed}",null,new Class[] { ActionEvent.class });
MethodExpressionActionListener actionListener = null;
actionListener = new MethodExpressionActionListener(methodExpr);
button.addActionListener(actionListener);
Even after making the listener Function as Void wHen i click the button i m getting the error saying."ARGUMENTS MISMATCH,ADF_FACES60097"??
can you help me out?
and in the msg log i m getting this
"SkinFactoryImpl> <getSkin> Cannot find a skin that matches family portal and version v1.1. We will use the skin portal.desktop.
<MethodExpressionActionListener> <processAction> Received 'javax.el.PropertyNotFoundException' when invoking action listener '#{exbean.handleButtonPressed}' for component 'null'
<MethodExpressionActionListener> <processAction> javax.el.PropertyNotFoundException: Target Unreachable, identifier 'custombean' resolved to null"
I Have tried with this giving Void TYPE as an argument
methodExpr = exprFactory.createMethodExpression(elctx, "#{exbean.handleButtonPressed},Void.TYPE,new Class[] { ActionEvent.class });
I M getting the same error.
Edited by: chaya on Dec 22, 2011 2:47 PM

yeah but i m creating button itself dynamically by java code....
//code
UIComponent button;
button = findComponentInRoot("cb1");
RichPanelGroupLayout pgl;
pgl = (RichPanelGroupLayout)button.getParent();
List<UIComponent> children;
children = pgl.getChildren();
RichPanelGroupLayout pgll;
pgll = new RichPanelGroupLayout();
RichInputText it;
it = new RichInputText();
it.setLabel("New textbox " + (children.size()));
RichCommandButton but = new RichCommandButton();
but.setPartialSubmit(true);
but.setText("Delete");
/*calling actionevent*/
FacesContext fctx = FacesContext.getCurrentInstance();
ELContext elctx = fctx.getELContext();
Application application = fctx.getApplication();
ExpressionFactory exprFactory = application.getExpressionFactory();
MethodExpression methodExpr = null;
methodExpr = exprFactory.createMethodExpression( elctx,"#{inbean.actionPerformed}",null, new Class[] {ActionEvent.class});
MethodExpressionActionListener actionListener = null;
actionListener = new MethodExpressionActionListener(methodExpr);
but.addActionListener(actionListener);
/*end of call*/
children.add(pgll);
children.add(it);
children.add(but);
AdfFacesContext.getCurrentInstance().addPartialTarget(pgl);
//code to call method
public void actionPerformed(ActionEvent event) {
System.out.println("entered sec bean");
return " ";}
this way i m trying to create a button programatically and tryin to add actionlistener which is not working.
the actionlistener is throwing error.... with the line
methodExpr = exprFactory.createMethodExpression( elctx,"#{inbean.actionPerformed}",null, new Class[] {ActionEvent.class});

Is there a way to have the same action listener for few buttons?

guys, lets say i have button1, button2 and button3
how do i add the same action listener for 3 of them. doing 3 different action listener is very tedius! my assignment have almots 100 buttons but I need their action listener to be the same.

Hi,
Your class needs an action listener, so add implements ActionListener to you class creation string.
Then on each button set an action command;
button1.setActionCommand(BUTTON1);Now add an listener;
buttons1.addActionListener(this);Finally create a method to perform a task
public void actionPerformed(ActionEvent e)
if (e.getActionCommand().equals(BUTTON1))
xxxx
}This should do the trick.
adelebt

How to create a single action listener for a group of buttons

hi there.. i am new at java and i have a problem with my applet..
i am doing a virtual ticket programme..
i have a tab that says books seats.. in the tab, i am suppose to create 50 buttons.
i have done that already by using for (int i=1; i<=10;i++) 5 times for 50 buttons.
but i do not know how to set an actionlistener in the for loop for each of these buttons..
For example, if the user were to chose seat "no3" , a text area(already created) below will show something like "no3" and so on..
how do i bind these buttons into one single action listener so i do not have to create 50 actionlisteners and buttons individually..
appreciate the help..

You're killing me.
class MyFrame extends JFrame implements ActionListener
     JTextArea myTextArea = new JTextArea();
     JButton myButton = new JButton("My Button");
     JButton otherButton = new JButton("Other Button");
     MyFrame()
          super();
          myButton.addActionListener(this);
          otherButton.addActionListener(this);
          setLayout(new FlowLayout());
          add(myButton);
          add(otherButton);
          add(myTextArea);
     public void actionPerformed(ActionEvent e)
          Object source = e.getSource();
          if(source == myButton)
               myTextArea.append("My Button Pressed\n");
          else if(source == otherButton)
               myTextArea.append("Other Button Pressed\n");
}

Button action listener in jsp

Hi,
I want to know, how we can do the button action listener in jsp pages. i have 3 buttons in same jsp page. each button action have separate taks in the same page. how to do this. please suggest me.
Regards
Chinna

Or, I think you have to use JSF (Java Server Faces) to use action Listeners.
visit this link:
http://72.5.124.55/javaee/5/docs/tutorial/doc/JSFDevelop5.html

Issue with setting an Action Listener for a Command Button

Hi all,
I'm trying to set an action listener for a CoreCommanButton in a backing bean. Here's my code:
     CoreCommandButton editBtn = new CoreCommandButton();
          MethodBinding mb = FacesContext.getCurrentInstance().getApplication().createMethodBinding("#{backBean.doButtonAct}",null);
          editBtn.setActionListener(mb);
//Action listener method
     public void doButtonAct(ActionEvent actionEvent)
I keep getting a javax.faces.el.MethodNotFoundException error. However when I remove the ActionEvent parameter in doButtonAct(), I get a wrong number of arguments error.
So i'm guessing there is something wrong with the parameters i accept in my action listener method. what can be causing this issue?
Cheers.

I figured this out.
Since doButtonAct() requires an ActionEvent object as a parameter, i needed to define the parameter type when I create the method binding.
Solution:
     Class argsString[] = new Class[] { ActionEvent.class };
          MethodBinding mb = FacesContext.getCurrentInstance().getApplication().createMethodBinding("#{backBean.doButtonAct}",argsString);

******** Need to add any button activated ACTION EVENT***********

Can anyone help me add any type of ACTION EVENT /ACTION LISTENER TO THIS CODE
PLEASE REVIEW AND COMPILE IF NECESSARY. Ensure that it compiles without errors. Currently it compiles without errors. It opens up as a GUI window that accepts a password. If anyone could just add a button to it that will do just about anything, time check, date check whatever it would be great!!!!! THIS WAS COMPILED WITH THE JGRASP COMPILER JAVA ACCEPTED
Thank you all,
********************** Bruce's Code*****************************
import java.awt.*;
public class TimeEntryForm extends Panel
private Panel tallPanel = new Panel();
private Panel tallPanel2= new Panel();
public TimeEntryForm()
tallPanel.setLayout(new GridLayout(3, 1));
tallPanel.add(new Label("Hrs Total"));
tallPanel.add(new Label("Any"));
tallPanel.add(new Label("One"));
tallPanel2.setLayout(new GridLayout(3,1));
tallPanel2.add(new Label("Personal Leave "));
tallPanel2.add(new Label("Hrs Total "));
tallPanel2.add(new Label("Pay Calc "));
setLayout(new GridBagLayout());
GridBagConstraints c = new GridBagConstraints();
c.gridx = 0; c.gridy = 2;
add(new Label("Social Security # "), c);
c.gridx = 1; c.gridy = 0;
add(new Label("TIME ENTRY FORM"), c);
c.gridx = 1;c.gridy = 1;
add(new Label("Enter Date Here "), c);
c.gridx = 3;c.gridy = 2;
add(new Label("Employee Name "), c);
c.gridx = 3;c.gridy = 4;
add(new Label("Sick Time "), c);
c.gridx = 0; c.gridy = 3;
add(new Label("IN OUT "), c);
c.gridx = 0; c.gridy = 4;
add(new Label("IN OUT "), c);
c.gridx = 0; c.gridy = 5;
add(new Label("IN OUT "), c);
c.gridx = 0; c.gridy = 6;
add(new Label("IN OUT "), c);
c.gridx = 0; c.gridy = 7;
add(new Label("IN OUT "), c);
c.gridx = 0; c.gridy = 8;
add(new Label("IN OUT "), c);
c.gridx = 0; c.gridy = 9;
add(tallPanel2, c);
c.gridx = 1;c.gridy = 11; //note, sets y
add(new Label("Hrs Worked Today "), c);
c.gridx = 1;c.gridy = 12;
add(new Label("Pay Earned Today "), c);
c.gridx = 2;
add(tallPanel2, c);
public static void main(String args[])
Frame f = new Frame("Time Entry Form");
f.add(new TimeEntryForm());
f.pack();
f.setVisible(true);
}

Hi java-luv,
I am not sure if I understand the problem. But I was able to add a JButton to your code (using the JBuilder designer). The button just exists the application. Please check the listing below. Hope this helps.
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class TimeEntryForm extends Panel
private Panel tallPanel = new Panel();
private Panel tallPanel2 = new Panel();
private JButton jButton1 = new JButton();
public TimeEntryForm() {
tallPanel.setLayout(new GridLayout(3, 1));
tallPanel.add(new Label("Hrs Total"));
tallPanel.add(new Label("Any"));
tallPanel.add(new Label("One"));
tallPanel2.setLayout(new GridLayout(3, 1));
tallPanel2.add(new Label("Personal Leave "));
tallPanel2.add(new Label("Hrs Total "));
tallPanel2.add(new Label("Pay Calc "));
setLayout(new GridBagLayout());
GridBagConstraints c = new GridBagConstraints();
c.gridx = 0;
c.gridy = 2;
add(new Label("Social Security # "), c);
c.gridx = 1;
c.gridy = 0;
add(new Label("TIME ENTRY FORM"), c);
c.gridx = 1;
c.gridy = 1;
add(new Label("Enter Date Here "), c);
c.gridx = 3;
c.gridy = 2;
add(new Label("Employee Name "), c);
c.gridx = 3;
c.gridy = 4;
add(new Label("Sick Time "), c);
c.gridx = 0;
c.gridy = 3;
add(new Label("IN OUT "), c);
c.gridx = 0;
c.gridy = 4;
add(new Label("IN OUT "), c);
c.gridx = 0;
c.gridy = 5;
add(new Label("IN OUT "), c);
c.gridx = 0;
c.gridy = 6;
add(new Label("IN OUT "), c);
c.gridx = 0;
c.gridy = 7;
add(new Label("IN OUT "), c);
c.gridx = 0;
c.gridy = 8;
add(new Label("IN OUT "), c);
c.gridx = 0;
c.gridy = 9;
add(tallPanel2, c);
c.gridx = 1;
c.gridy = 11; //note, sets y
add(new Label("Hrs Worked Today "), c);
c.gridx = 1;
c.gridy = 12;
add(new Label("Pay Earned Today "), c);
c.gridx = 2;
add(tallPanel2, c);
jbInit();
public static void main(String args[]) {
Frame f = new Frame("Time Entry Form");
f.add(new TimeEntryForm());
f.pack();
f.setVisible(true);
private void jbInit() {
jButton1.setText("Exit");
jButton1.addActionListener(new TimeEntryForm_jButton1_actionAdapter(this));
this.add(jButton1, null);
void jButton1_actionPerformed(ActionEvent e) {
System.exit(0);
class TimeEntryForm_jButton1_actionAdapter implements java.awt.event.ActionListener {
TimeEntryForm adaptee;
TimeEntryForm_jButton1_actionAdapter(TimeEntryForm adaptee) {
this.adaptee = adaptee;
public void actionPerformed(ActionEvent e) {
adaptee.jButton1_actionPerformed(e);

Is there a way to trigger button's action listeners from key events?

I rarely do GUI programming, especially not in Java. But now I am working on a GUI app and would like to get some help.
Say I have a simple GUI consists of a JFrame, and a bunch of buttons on its JToolBar. The buttons on the JToolBar are for navigation of a set of documents, first, prev, next, last etc. All buttons are assigned action command strings, and their all trigger the same instance of action listener. inside of the action listener, it does the correct navigation based on the action command from the event.
but some users want to be able to use the keyboard to do the navigation, because they think clicking the buttons are too slow.
So is there a graceful way to receive the different key press events and trigger corresponding navigation actions (hopefully it reuses the code that is already there, e.g. the action listener)? thanks.
-- Jim

but some users want to be able to use the keyboard to do the navigation, because they think clicking the buttons are too slow. That is always the case in any GUI. Any application should be designed to use either the mouse or the keyboard.
All buttons are assigned action command strings,That is not the way the GUI should be designed.
Instead you should be creating Actions. Then you can add the Action to a button and you can associate the Action with a KeyStroke which is called "Key Binding". This is the way all Swing components work. You can read the [url http://download.oracle.com/javase/tutorial/uiswing/TOC.html]Swing tutorial for more information and examples. Start with the section on:
a) How to Use Actions
b) How to Use Key Bindings

How to use a back button in action pages?

Hi all,
I have created a user login page,home page and user profile page.
If the user provide correct username and password in the login page he will be taken to home page.
In the home page he will be having his username and a link to view his profile.
When the user click on the link "My Profile(user profile)" he wil be taken to that page.
In my profile page the user can edit only his firstname,lastname and password .
On the user profile page i have placed a Back Button(using javascript: on onclick event i have used history.back()) to go back to home page after editing his profile.
If the user edit his profile for n-number of times then atlast if he wants to go back to home page-then he wil cilck the back button.
Now the problem occurs like the back button not going to home page and it simply going back with the edited history.
How to use a back button in action pages; without repeating the actions done on the page; how to redirect to the users home page?
I simply used the hyperlink in userprofile page to go to home page but when i click onit it is displaying blank home page.
I'm using hibernate orm mapping; cflogin and cflogout tags.
Any help appreciated,
Chandru P

chandrup wrote:
Hi Dan,
Dan Bracuk wrote:
Use an anchor tag.
I simply used the hyperlink(<a href="home.cfm">Home</a>) in userprofile page to go to home page but when i click onit it is displaying blank home page.
I can see your problem. You may use javascript:history.go(-1), javascript:history.go(-2), ..., to go back one page, two pages, and so on. But how does one go back an arbitrary n pages? The link href="home.cfm" isn't a good solution for the browser. It makes a new call to the server which, as you may have discovered, can overwrite all the changes made at the browser.
You should use the Javascript variable history.length. If you open n links in succession, starting from page0.cfm, then the browser holds the value of history.length as n. So, experiment with something like
<a href="javascript:history.go(-history.length)">Go home</a>
or
<a href="javascript:history.go(-history.length+1)">Go home</a>

Transaction Posting Confirmation Message and Action Listener behaviour

Hi, I have a scenario that a user is Posting a Transaction and when he press the “Post” Button a, confirmation dialog box should popup asking “Do you really want to Post the record ?”. If the user press “Yes” the record is further process and If the user press “No” then the transaction should not proceed.
I have implemented the main screen(PostTransaction.java) and the popup confirmation window(ConfirmationWindow.java)
Question 1 ) Why the code is not stoping in the Post Button Action listener as in JOptionPane, then how do i know that the user has selected "Yes" or "No" ?
Question 2) Do I have to write the code for posting of a Transaction(postTransaction() method) in the “ConfirmationWindow”? or it should be in “PostTransaction”.
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.layout.GridPane;
import javafx.stage.Stage;
public class PostTransaction extends Application{
       public void start(final Stage stage) throws Exception {
              Group root = new Group();
              Scene scene = new Scene(root, 300,300);
              stage.setScene(scene);
              stage.setTitle("Transaction Post Screen");
              GridPane gp = new GridPane();
              Label lblName = new Label("Name");
              Label lblAmount = new Label("Amount");
              TextField txtName = new TextField();
              TextField txtAmount = new TextField();
              Button btnPost = new Button("Post Record");
              gp.add(lblName, 1, 1);
              gp.add(lblAmount, 1, 2);
              gp.add(txtName, 2, 1);
              gp.add(txtAmount, 2, 2);
              gp.add(btnPost, 2, 3);
              btnPost.setOnAction(new EventHandler<ActionEvent>() {
                    @Override
                    public void handle(ActionEvent arg0) {
                         //The code does not stop here as in JOptionPane, then how do i know that the user has selected "Yes" or "No" ??
                         boolean popupResult = ConfirmationWindow.confirmTranactionPosting(stage, "Please Confirm");
                         if(popupResult==true){
                              //This line is printed before the user selects yes or no
                              System.out.println("Proceeding with Tranaction Posting");
                              //postTransaction();
                         if(popupResult==false){
                              //This line is printed before the user selects yes or no
                              System.out.println("Do not Proceed with Tranaction Posting");
             root.getChildren().add(gp);
            stage.show();
            public static void main(String[] args) {
              launch(args);
          private void postTransaction(){
               //write the code for posting here
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.stage.Modality;
import javafx.stage.Stage;
import javafx.stage.StageStyle;
public class ConfirmationWindow extends Stage {
     Stage owner;
     Stage stage;
     BorderPane root;
     static boolean postStatus = false;
public ConfirmationWindow( Stage owner, String title){
    root = new BorderPane();
    stage = this;
    this.owner = owner;
    initModality( Modality.APPLICATION_MODAL );
    initOwner( owner );
    initStyle( StageStyle.UTILITY );
    setTitle( title );
    setContents();
public void setContents(){
    Scene scene = new Scene(root,250,150);
    setScene(scene);
    Group groupInDialog = new Group();
    groupInDialog.getChildren().add( new Label("Do you really want to Post this record ?") );
    root.setCenter( groupInDialog );
    Button yes = new Button( "Yes" );
    yes.setOnAction(new EventHandler<ActionEvent>() {
          @Override
          public void handle(ActionEvent e) {
               postStatus =true;
               stage.close(); // Close the pop up. Transfer control to PostTransaction.java and execute the PostTransaction() method.
    Button no = new Button( "No" );
    no.setOnAction(new EventHandler<ActionEvent>() {
          @Override
          public void handle(ActionEvent e) {
               postStatus =false;
               stage.close(); // Close the pop up only
    HBox buttonPane = new HBox();
    buttonPane.setSpacing(10);
    buttonPane.getChildren().addAll(yes,no);
    root.setBottom(buttonPane);
    stage.show();
public static boolean confirmTranactionPosting(Stage owner, String title) {
       new ConfirmationWindow(owner, title);
       return postStatus;
}

The MII Message listener is a queue. But when I understand you correctly, you do not want to process the messages immediately after arriving in the Listener.
Maybe the categorization of messages is an option for you (see [Sap Help: Processing Rule Editor - Category|http://help.sap.com/saphelp_mii121/helpdata/en/43/e80b59ad40719ae10000000a1553f6/frameset.htm]. You can enter a category for the control recipe messages. The messages will then be placed in the Listener queue. You can use the [Message Services|http://help.sap.com/saphelp_mii121/helpdata/en/43/e80b59ad40719ae10000000a1553f6/frameset.htm] actions to read the categorized messages and process them as you need.
In addition to Manoj, you may also use the [Queueing actions|http://help.sap.com/saphelp_mii121/helpdata/en/43/e80b59ad40719ae10000000a1553f6/frameset.htm] of MII, where you can queue xml contents.
Hope this helps.
Michael

Problem with action listener

hello
the problem in my code is that i defined
actionlistener for a button but it does not
do what it should do . it throws an error in the console
and i think my code is 100% correct what is the problem
please help me this is the codewith
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
class Library extends JFrame implements ActionListener     {
     private JMenuBar jmb      = new JMenuBar();
     private JMenu books      = new JMenu("Books",true);
     private JMenu members      = new JMenu("Members",true);
     private JMenu loans      = new JMenu("Loans",true);
     private JMenuItem addNb = new JMenuItem("Add New Book");
     private JMenuItem listB = new JMenuItem("List All Books");
     private JMenuItem listAb = new JMenuItem("List Available Books");
     private JMenuItem listBb = new JMenuItem("List Borrowed Books");
     private JMenuItem addNm = new JMenuItem("Add New Member");
     private JMenuItem removeM = new JMenuItem("Remove a Member");
     private JMenuItem listAm = new JMenuItem("List All Members");
     private JMenuItem loanB = new JMenuItem("Loan A Book");
     private JMenuItem returnB = new JMenuItem("Return A Book");
     private JTextField bNumber = new JTextField(14);
     private JTextField bAuthor = new JTextField(14);
     private JTextField bTitle = new JTextField(14);
     private JTextField mId = new JTextField(14);
     private JTextField mName = new JTextField(14);
     private JTextField idB = new JTextField(14);
     private JTextField nBToB = new JTextField(14);
     private JTextField nBTor = new JTextField(14);
     private JTextArea dispaly = new JTextArea();
     private JButton oKb1 = new JButton("OK");
     private JButton okb2 = new JButton("OK");
     private JButton cloaseb = new JButton("Close");
     private JButton oKm1 = new JButton("OK");
     private JButton oKm2 = new JButton("OK");
     private JButton cancelM = new JButton("Cancel");
     private JButton oKm3 = new JButton("OK");
     private JButton oKm4 = new JButton("OK");
     private JButton cancelM2 = new JButton("Cancel");
     private JButton oKl = new JButton("OK");
     private JButton oKr = new JButton("OK");
     private JButton yes = new JButton("Yes");
     private JButton no = new JButton("No");
     private JLabel bN = new JLabel("Book Number");
     private JLabel bA = new JLabel("Book Author");
     private JLabel bT = new JLabel("Book Title");
     private JLabel iN          = new JLabel("ID Number");
     private JLabel mN          = new JLabel("Member's Name");
     private JLabel     iNb          = new JLabel("ID number of the borrower");
     private JLabel nBb          = new JLabel("Number of the books to borrow");
     private JLabel nBr          = new JLabel("Number of the books to return");
     private JLabel mIdl     = new JLabel("ID number of the stuednt");
     private JPanel tempoIPanel= new JPanel(new FlowLayout());
     Container cp;
     JFrame mainFrame;
     JInternalFrame tempoI;
Library()     {
     //LibraryClass lClass = new LibraryClass();/*
     mainFrame = new JFrame();
     mainFrame.setJMenuBar(jmb);
     mainFrame.setSize(800,550);
     mainFrame.getContentPane().setLayout(new FlowLayout());
     jmb.add(books);
     jmb.add(members);
     jmb.add(loans);
     books.add(addNb);
     addNb.addActionListener(this);
     books.add(listB);
     listB.addActionListener(this);
     books.add(listAb);
     listAb.addActionListener(this);
     books.add(listBb);
     listBb.addActionListener(this);
     members.add(addNm);
     addNm.addActionListener(this);
     members.add(removeM);
     removeM.addActionListener(this);
     members.add(listAm);
     listAm.addActionListener(this);
     loans.add(loanB);
     loanB.addActionListener(this);
     loans.add(returnB);
     returnB.addActionListener(this);
     //actions listeners
     oKb1.addActionListener(this);
     mainFrame.setVisible(true);
public void actionPerformed(ActionEvent ae)     {
     if(ae.getSource() == addNb)     {
          tempoI = new JInternalFrame("Add new Book",true,true);
          mainFrame.getContentPane().add(tempoI);
          tempoI.getContentPane().setLayout(new FlowLayout());
          tempoI.getContentPane().add(bN);
          tempoI.getContentPane().add(bNumber);
          tempoI.getContentPane().add(bA);
          tempoI.getContentPane().add(bAuthor);
          tempoI.getContentPane().add(bT);
          tempoI.getContentPane().add(bTitle);
          tempoI.getContentPane().add(oKb1);//add action listener here
          tempoI.setVisible(true);
     if(ae.getSource() == listB)     {
          //LibraryClass.listBooks();
     if(ae.getSource() == listAb){}
     if(ae.getSource() == listBb){}
     if(ae.getSource() == addNm)     {
          tempoI = new JInternalFrame("Add new Member",true,true);
          mainFrame.getContentPane().add(tempoI);
          tempoI.getContentPane().setLayout(new FlowLayout());
          tempoI.getContentPane().add(iN);
          tempoI.getContentPane().add(mId);
          tempoI.getContentPane().add(mN);
          tempoI.getContentPane().add(mName);
          tempoI.getContentPane().add(oKm1);//add action listener
          tempoI.getContentPane().setSize(300,400);
          tempoI.setVisible(true);
     if(ae.getSource() == removeM)     {
          tempoI = new JInternalFrame("Rmove member",true,true);
          mainFrame.getContentPane().add(tempoI);
          tempoI.getContentPane().setLayout(new FlowLayout());
          tempoI.getContentPane().add(mIdl);
          tempoI.getContentPane().add(mId);
          tempoI.getContentPane().add(oKm2);//add action listener
          //LibraryClass.removeM(Double.parseDouble(mId.getText()));
          tempoI.getContentPane().setSize(300,400);
          tempoI.setVisible(true);
     if(ae.getSource() == listAm)     {
          //LibraryClass.listMembers();
     if(ae.getSource() == loanB)     {
          tempoI = new JInternalFrame("Loan book",true,true);
          mainFrame.getContentPane().add(tempoI);
          tempoI.getContentPane().setLayout(new FlowLayout());
          tempoI.getContentPane().add(iNb);
          tempoI.getContentPane().add(idB);
          tempoI.getContentPane().add(nBb);
          tempoI.getContentPane().add(nBToB);
          tempoI.getContentPane().add(oKl);
          //LibraryClass.borrowBook(Book bk,Member m);
          tempoI.getContentPane().setSize(300,400);
          tempoI.setVisible(true);
     if(ae.getSource() == returnB)     {
          tempoI = new JInternalFrame("Return Book",true,true);
          mainFrame.getContentPane().add(tempoI);
          tempoI.getContentPane().setLayout(new FlowLayout());
          tempoI.getContentPane().add(iNb);
          tempoI.getContentPane().add(idB);
          tempoI.getContentPane().add(nBr);
          tempoI.getContentPane().add(nBTor);
          tempoI.getContentPane().add(oKr);
          tempoI.getContentPane().setSize(400,300);
          tempoI.setVisible(true);
          //Book.addBook(bNumber.getText(),bAuthor.getText(),bTitle.getText());
class ClubLibrarySystem     {
     public static void main(String[] args)     {
     new Library();
}

hello
the problem in my code is that i defined
actionlistener for a button but it does not
do what it should do . it throws an error in the
consoleWhat error?
and i think my code is 100% correct what is theWell, but it isn't.
Have you tried using a debugger?
problem
please help me this is the codewith
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
class Library extends JFrame implements
ActionListener     {
     private JMenuBar jmb      = new JMenuBar();
     private JMenu books      = new JMenu("Books",true);
private JMenu members      = new
JMenu("Members",true);
private JMenu loans      = new
JMenu("Loans",true);
private JMenuItem addNb = new JMenuItem("Add New
Book");
private JMenuItem listB = new JMenuItem("List All
Books");
private JMenuItem listAb = new JMenuItem("List
Available Books");
private JMenuItem listBb = new JMenuItem("List
Borrowed Books");
private JMenuItem addNm = new JMenuItem("Add New
Member");
private JMenuItem removeM = new JMenuItem("Remove a
Member");
private JMenuItem listAm = new JMenuItem("List All
Members");
private JMenuItem loanB = new JMenuItem("Loan A
Book");
private JMenuItem returnB = new JMenuItem("Return A
Book");
     private JTextField bNumber = new JTextField(14);
     private JTextField bAuthor = new JTextField(14);
     private JTextField bTitle = new JTextField(14);
     private JTextField mId = new JTextField(14);
     private JTextField mName = new JTextField(14);
     private JTextField idB = new JTextField(14);
     private JTextField nBToB = new JTextField(14);
     private JTextField nBTor = new JTextField(14);
     private JTextArea dispaly = new JTextArea();
     private JButton oKb1 = new JButton("OK");
     private JButton okb2 = new JButton("OK");
     private JButton cloaseb = new JButton("Close");
     private JButton oKm1 = new JButton("OK");
     private JButton oKm2 = new JButton("OK");
     private JButton cancelM = new JButton("Cancel");
     private JButton oKm3 = new JButton("OK");
     private JButton oKm4 = new JButton("OK");
     private JButton cancelM2 = new JButton("Cancel");
     private JButton oKl = new JButton("OK");
     private JButton oKr = new JButton("OK");
     private JButton yes = new JButton("Yes");
     private JButton no = new JButton("No");
private JLabel bN = new JLabel("Book
Number");
private JLabel bA = new JLabel("Book
Author");
private JLabel bT = new JLabel("Book
Title");
     private JLabel iN          = new JLabel("ID Number");
private JLabel mN          = new JLabel("Member's
Name");
private JLabel     iNb          = new JLabel("ID number of the
borrower");
private JLabel nBb          = new JLabel("Number of the
books to borrow");
private JLabel nBr          = new JLabel("Number of the
books to return");
private JLabel mIdl     = new JLabel("ID number of
the stuednt");
private JPanel tempoIPanel= new JPanel(new
FlowLayout());
     Container cp;
     JFrame mainFrame;
     JInternalFrame tempoI;
Library()     {
     //LibraryClass lClass = new LibraryClass();/*
     mainFrame = new JFrame();
     mainFrame.setJMenuBar(jmb);
     mainFrame.setSize(800,550);
mainFrame.getContentPane().setLayout(new
FlowLayout());
     jmb.add(books);
     jmb.add(members);
     jmb.add(loans);
     books.add(addNb);
     addNb.addActionListener(this);
     books.add(listB);
     listB.addActionListener(this);
     books.add(listAb);
     listAb.addActionListener(this);
     books.add(listBb);
     listBb.addActionListener(this);
     members.add(addNm);
     addNm.addActionListener(this);
     members.add(removeM);
     removeM.addActionListener(this);
     members.add(listAm);
     listAm.addActionListener(this);
     loans.add(loanB);
     loanB.addActionListener(this);
     loans.add(returnB);
     returnB.addActionListener(this);
     //actions listeners
     oKb1.addActionListener(this);
     mainFrame.setVisible(true);
public void actionPerformed(ActionEvent ae)     {
     if(ae.getSource() == addNb)     {
tempoI = new JInternalFrame("Add new
w Book",true,true);
          mainFrame.getContentPane().add(tempoI);
tempoI.getContentPane().setLayout(new
w FlowLayout());
          tempoI.getContentPane().add(bN);
          tempoI.getContentPane().add(bNumber);
          tempoI.getContentPane().add(bA);
          tempoI.getContentPane().add(bAuthor);
          tempoI.getContentPane().add(bT);
          tempoI.getContentPane().add(bTitle);
tempoI.getContentPane().add(oKb1);//add action
n listener here
          tempoI.setVisible(true);
     if(ae.getSource() == listB)     {
          //LibraryClass.listBooks();
     if(ae.getSource() == listAb){}
     if(ae.getSource() == listBb){}
     if(ae.getSource() == addNm)     {
tempoI = new JInternalFrame("Add new
w Member",true,true);
          mainFrame.getContentPane().add(tempoI);
tempoI.getContentPane().setLayout(new
w FlowLayout());
          tempoI.getContentPane().add(iN);
          tempoI.getContentPane().add(mId);
          tempoI.getContentPane().add(mN);
          tempoI.getContentPane().add(mName);
tempoI.getContentPane().add(oKm1);//add action
n listener
          tempoI.getContentPane().setSize(300,400);
          tempoI.setVisible(true);
     if(ae.getSource() == removeM)     {
tempoI = new JInternalFrame("Rmove
e member",true,true);
          mainFrame.getContentPane().add(tempoI);
tempoI.getContentPane().setLayout(new
w FlowLayout());
          tempoI.getContentPane().add(mIdl);
          tempoI.getContentPane().add(mId);
tempoI.getContentPane().add(oKm2);//add action
n listener
          //LibraryClass.removeM(Double.parseDouble(mId.getText
          tempoI.getContentPane().setSize(300,400);
          tempoI.setVisible(true);
     if(ae.getSource() == listAm)     {
          //LibraryClass.listMembers();
     if(ae.getSource() == loanB)     {
          tempoI = new JInternalFrame("Loan book",true,true);
          mainFrame.getContentPane().add(tempoI);
tempoI.getContentPane().setLayout(new
w FlowLayout());
          tempoI.getContentPane().add(iNb);
          tempoI.getContentPane().add(idB);
          tempoI.getContentPane().add(nBb);
          tempoI.getContentPane().add(nBToB);
          tempoI.getContentPane().add(oKl);
          //LibraryClass.borrowBook(Book bk,Member m);
          tempoI.getContentPane().setSize(300,400);
          tempoI.setVisible(true);
     if(ae.getSource() == returnB)     {
tempoI = new JInternalFrame("Return
n Book",true,true);
          mainFrame.getContentPane().add(tempoI);
tempoI.getContentPane().setLayout(new
w FlowLayout());
          tempoI.getContentPane().add(iNb);
          tempoI.getContentPane().add(idB);
          tempoI.getContentPane().add(nBr);
          tempoI.getContentPane().add(nBTor);
          tempoI.getContentPane().add(oKr);
          tempoI.getContentPane().setSize(400,300);
          tempoI.setVisible(true);
          //Book.addBook(bNumber.getText(),bAuthor.getText(),bT
tle.getText());
class ClubLibrarySystem     {
     public static void main(String[] args)     {
     new Library();

Action Listener Method called multiple times

I have a page (fragment .jsff), containing a simple input text and a button called "search". When I click on "Search" the action listener is triggered multiple times. (The results are displayed in a table inside a panel collection).
The results are actually coming back ok.
When I debug the code, I can see the action listener method called twice.
Do you know why is that?
What should I be taking care of?
This is my code :
*** Fragment ****
<af:commandButton text="#{identityBundle.search_label}" id="cb1"
actionListener="#{UserDetailsBean.searchUsersListener}"
disabled="#{!bindings.searchUsers.enabled}"/>
*** Managed bean ***
public void searchUsersListener(ActionEvent actionEvent) {
// Add event code here...
DCBindingContainer bindings = (DCBindingContainer)getBindings();
DCIteratorBinding iter = bindings.findIteratorBinding("userIterator");
DCDataRow row = (DCDataRow)iter.getCurrentRow();
User user = (User)row.getDataProvider();
boolean isSearchCriteriaPresent = false;
if(user != null){
String fn = user.getFirstname();
if(fn != null && !fn.trim().equals("")){
isSearchCriteriaPresent = true;
user.setLastname(fn);
user.setNonMTUserLogin(fn);
try {
Map <Object, Object> userMap = PropertyUtils.describe(user);
for(Map.Entry<Object, Object> entry: userMap.entrySet()){
if(entry.getKey() != null && entry.getValue() != null && !entry.getKey().toString().equalsIgnoreCase("class")){
isSearchCriteriaPresent = true;
break;
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
if(!isSearchCriteriaPresent){
user.setFirstname("*");
OperationBinding opBinding = (OperationBinding)bindings.getOperationBinding("searchUsers");
opBinding.getParamsMap().put("user", user);
opBinding.execute();
AdfFacesContext adfFacesCtx = AdfFacesContext.getCurrentInstance();
Map<String, Object> scopePageFlowScopeVar= adfFacesCtx.getPageFlowScope();
scopePageFlowScopeVar.put("userSearchCriteria", user);
ADFContext adfCtx = ADFContext.getCurrent();
Map sessionScope = adfCtx.getSessionScope();
sessionScope.put("userSearchCriteria", user);
setUserSearchCriteria(user);
if(selectedUserID != null){
selectedUserID.setValue(null);
RichTable table = getUserResultsTable();
DCIteratorBinding searchUsersIterator = (DCIteratorBinding)bindings.get("searchUsersIterator");
Row[] rows = searchUsersIterator.getAllRowsInRange();
if(rows.length > 0){
RowKeySetImpl rks = new RowKeySetImpl();
ArrayList keyList = new ArrayList();
keyList.add(rows[0].getKey());
rks.add(keyList);
table.setSelectedRowKeys(rks);
table.setDisplayRowKey(keyList);
refreshState(table);
if(!isSearchCriteriaPresent){
user.setFirstname(null);
else{
deleteUserButton.setDisabled(true);
resetPasswordButton.setDisabled(true);
enableUserButton.setDisabled(true);
disableUserButton.setDisabled(true);
Thanks in advance for your help

Hi,
Can you try this?
1. set partialSubmit=true for the "search" button
2. set "search" button id as partialTrigger in your result table
-Prasad

Best way to implement an Action Listener

I have multiple anonymous classes for each button in my particular JPanel, this seems very... large and I am sure it is using a large amount of memory. Is there a better way to implement several action listeners to all these buttons so that they will still do their origional function but cut down on all the anonymous classes.

Actually nothing of the sort. There is too much information to be able to be placed nicely on the Panel, so I have many buttons that open dialog boxes where the information is placed, buttons that perform specified tasks (adding, updating, loading, deleting, clearing all fields) on the database, and others, there is also action listeners on the jspinners comboboxes and others.
Actually, I take back hundred, I recently extended JPanel to do my editing panels to go into my JTabbedPane cutting down on the line count in the FrameMain class (over 8K lines before the conversion) So there is only about 20 to 25 total action listeners per extended JPanel, instead of 150 or so declared in one frame.
The biggest concern here is memory usage, as of right now it uses a ton, and by searching and reading, I belive its all the action listeners (which at the time I thought you had to have a brand new one every time you wanted it to do something different).
Going back to the one action listener with the if/else statements obviously performace may be lost, but what is the ratio to performance lost to memory gain. Will the speed increase be negligable compared to the amount of memory usage that will go down?

Button without action listener

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