Binding component value to a property or to an implicit object?
Sorry for that newbie question, but it confuses me...
What is the differnce between binding component value to a property and binding this value to an implicit object? In both cases i can refere to the value inside jsp file by:
#{MyBean.someValue}.
The difference is that in first case I need to declare:
<managed-bean>
<managed-bean-name>MyBean</managed-bean-name>
<managed-property>
<property-name>someValue</property-name>
<value>value</value>
</managed-property>
</managed-bean>In second case I don't need to declare anything.
When should I use first type of binding and when the second one?
What are the restrictions in using implicit binding?
The definition of EasingColorKeyFrame class support Dependency Object.
https://msdn.microsoft.com/en-us/library/windows/apps/windows.ui.xaml.media.animation.easingcolorkeyframe.aspx.
http://stackoverflow.com/questions/8892234/binding-easingcolorkeyframe-value.
Similar Messages
-
Binding EasingColorKeyFrame value to control property
I have an animation that quickly changes the background of a custom control. Originally all the values for the EasingColorKeyFrames where set to static resource properties. I'm attempting to change these values to use a Color dependency property of the control
but it does not seem to be working. Below is my StoryBoard definition
<Storyboard x:Name="PadFlash">
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)" Storyboard.TargetName="Pad">
<EasingColorKeyFrame KeyTime="0:0:0.0" Value="#FFBB9F8F"/>
<EasingColorKeyFrame KeyTime="0:0:0.2" Value="{Binding RelativeSource={RelativeSource Self}, Path=CurrentColor}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
The control background that I'm animating can have it's background configured at runtime and I need my animation to quickly flash a highlighting color then return to the background of the control. Since the control background is configurable the animation
value for the last EasingColorKeyFrame needs to be dynamic and use the CurrentColor property as its value. CurrentColor is a dependency property of the control and is working correctly in code behind but not in this animation. When the animation occurs
the highlight color appears then the control background turns to black and I can tell from debugging that the getter of the dependency property is not being called.
Is it possible to use a dependency properties for EasingColorKeyFrame animation values?The definition of EasingColorKeyFrame class support Dependency Object.
https://msdn.microsoft.com/en-us/library/windows/apps/windows.ui.xaml.media.animation.easingcolorkeyframe.aspx.
http://stackoverflow.com/questions/8892234/binding-easingcolorkeyframe-value. -
Binding component's instance to bean property
I'm trying to bind a dataTable to an array of objects in a JavaBean. But I don't understand how the UIData object in my JavaBean gets created. I see the "setter" gets called from the binding attribute in the dataTable element, but it's not actually being populated with my data (it gets populated with a UIData object, HtmlDataTable, with 0 rows. But my object has rows).
<h:dataTable id="licenseTable"
styleClass="Detail"
binding="#{searchBean.licenseTable}"
value="#{searchBean.licenses}"
var="license">
</h:dataTable>In the "searchBean" JavaBean I have the following:
private UIData licenseTable = null;
private License[] licenseArray = null;
public UIData getLicenseTable()
return licenseTable;
public void setLicenseTable(UIData table)
this.licenseTable = table;
public License[] getLicenses()
return licenseArray;
}Do I manually create the UIData object? From the examples I've seen, that doesn't appear to be the case. But I don't see how it works.
Thanks.I'll try to answer your question, although, to be honest I'm not 100% sure that it will be correct. Perhaps a more experienced poster can correct me if I'm wrong.
I think that local values and component values are the same thing. Model values are the properties of the managed bean. There is a third category, which is submitted values.
- Submitted Values are the values which are read right off the HTTP parameters. In essence, they are the HTTP parameters.
- Local Values (or Component Values) These are the properties of the component. They are set from the submitted value during Apply_Request_Values phase.
- Model Values are the properties of a managed bean. These are set during the Update_Model_Values phase from the local values after being converted and validated during the Process_Validations phase.
I hope that helps, again, I am not completely sure if this is correct. -
Refreshing ADF Query Component after changing some property of a criteria
Hi All
Use Case : Refreshing ADF Query Component after changing some property of a criteria attribute.
I have a query panel with 2 query criteria i.e. FirstName and DepartmentId where in DepartmentId is a drop down. The scenario is like when change the value of DepartmentId to 'Finance' with code value of '100' then my criteria attribute 'Firstaname' should be invisibe(queriable=false).
Approach: Have overriden the queryOperationListener of adfquery as " queryOperationListener ="#{backingBeanScope.backing_queryLstener.processQueryOperation}" "
My backing bean method goes as below :
public void processQueryOperation(QueryOperationEvent queryOperationEvent) {
// Add event code here...
if( queryOperationEvent.getOperation().equals(queryOperationEvent.getOperation().CRITERION_UPDATE) ){
DCBindingContainer bindings = (DCBindingContainer)this.getBindings();
DCIteratorBinding iter =bindings.findIteratorBinding("EmployeeView1Iterator");
ViewObjectImpl voimpl = (ViewObjectImpl)iter.getViewObject();
ViewCriteria vc = voimpl.getViewCriteriaManager().getViewCriteria("EmployeeViewCriteriaDemo");
Row currRow = vc.first();
System.out.println("Department :"+currRow.getAttribute("DepartmentId"));
if( (Integer)currRow.getAttribute("DepartmentId") ==100 ){
AttributeDef[] attrs = voimpl.getAttributeDefs();
int attrIndex = voimpl.getAttributeIndexOf("FirstName");
ViewAttributeDefImpl attrDef = (ViewAttributeDefImpl) attrs[attrIndex];
attrDef.setQueriable(false);
// AdfFacesContext.getCurrentInstance().addPartialTarget(getQryId1()); //here i need to refresh the query component which is not happening
// refreshQueryComponent(getQryId1());
Everything is happening as expected but the query panel s not get refreshed.When i refresh the whole link/page then i can see the change.
Please suggest.
Thanks in adv.
-SanjeebHi,
can's say anything about the first part of the question as more insight to the implementation would be required. However, have a look at http://www.oracle.com/technetwork/developer-tools/adf/learnmore/83-bidi-synchronization-tree-form-401841.pdf, which may be what you are looking for
To the second part: You can programmaticallly refresh the tree component from a managed bean. So instead of using the declarative PPR option (or ChangeEventPolicy set to PPR on the iterator binding) you can wire the submit button to the managed bean, perform your validation and if it fails don't refresh teh tree
The call is
AdfFacesContext.getCurrentInstance().addPartialTarget(the_tree_instance)
Frank -
Adjusting Portal Pages throws "Specify a value for the property {0}"
I found (with the help of our friends at OSS) the setting I need to change with to adjust the Runtime frame size for Guided Procedures.
It's quite logical really, since GP is just a bunch of pages in the portal it would make sense to find them in the Portal Content option ... So there it was.
Content Administration > Portal Content
Search for content and go to Process Instance. The following part shows the 3 main content parts of the GP Runtime window. As you can see in the third container are the two elements that contain your content. "Content Area" and "Public Content Area".
Open those two areas (scroll down in the list in the middle, select one and press open) and change the value of Height Type from "Fixed" to "Automatic" or "Full Page".
This is where I get my error (see the link below for a screenshot as well): When I try to change a value, any value or just open for modifying and try saving again (without changing anything) I get this error:
[http://wow.telenet.be/delaware/property0.jpg]
Specify a value for the property
Now I don't know if there any portal expert watching this thread, but it seems as though all those pages have been wrongly configured from the start. And until I figure out the right configuration I won't be able to save them either way.
My question is two-fold:
1) Can anyone provide me with all the settings he has for this component so I can compare them to mine?
2) How do I fix this error? I'm assuming every page in the portal gives the same error?
Thanks in advance,
Frederik-Jan
Edited by: Frederik-Jan Roose on Apr 1, 2008 11:33 AM
Edited by: Frederik-Jan Roose on Apr 1, 2008 11:33 AMI found (with the help of our friends at OSS) the setting I need to change with to adjust the Runtime frame size for Guided Procedures.
It's quite logical really, since GP is just a bunch of pages in the portal it would make sense to find them in the Portal Content option ... So there it was.
Content Administration > Portal Content
Search for content and go to Process Instance. The following part shows the 3 main content parts of the GP Runtime window. As you can see in the third container are the two elements that contain your content. "Content Area" and "Public Content Area".
Open those two areas (scroll down in the list in the middle, select one and press open) and change the value of Height Type from "Fixed" to "Automatic" or "Full Page".
This is where I get my error (see the link below for a screenshot as well): When I try to change a value, any value or just open for modifying and try saving again (without changing anything) I get this error:
[http://wow.telenet.be/delaware/property0.jpg]
Specify a value for the property
Now I don't know if there any portal expert watching this thread, but it seems as though all those pages have been wrongly configured from the start. And until I figure out the right configuration I won't be able to save them either way.
My question is two-fold:
1) Can anyone provide me with all the settings he has for this component so I can compare them to mine?
2) How do I fix this error? I'm assuming every page in the portal gives the same error?
Thanks in advance,
Frederik-Jan
Edited by: Frederik-Jan Roose on Apr 1, 2008 11:33 AM
Edited by: Frederik-Jan Roose on Apr 1, 2008 11:33 AM -
How to get the Dynamic UI component value from JSFF page to any managedbean
HI ,
We have list of bean objects in jSF page we are iterating the list of bean using the forEach loop and displaying the value into Input type text (UI component) value filed .
If we try to get the UI component value in Managed bean we are not getting the dynamic values .
The below piece of code used to retrieve the dynamic values from the JSF page doesn't have any form :
UIComponent component = null;
FacesContext facesContext = FacesContext.getCurrentInstance();
if (facesContext != null) {
UIComponent root = facesContext.getViewRoot();
component = findComponent(root, componentId);
then component type casting to the based on UI component which we trying to access and getting the value as " NULL " ..Please let me know how to get the dynamic values form the JSF ?
Please let me know if any other approach or any changes required on above ?
ThanksHi,
the root problem is this
<h:inputText id="it3" value="#{familyList.ctn}" />
<tr:commandButton text="Save" id="cb3"Note how each row writes to the same managed bean property, thus showing the same data. Instead your managed bean should expose a HashMap property that you then apply values to using a key/value pair. The key could be the ID of the field, which then you also should dynamically define e.g. cb<rowIndx>. The command button could then have a f:attribute assigned that has the row HahMap key as a value. This way you truly create value instances for the object
Frank -
JSF RI 1.1_01: UIInput component value was not set during render response
I've just started to learn JSF, read corresponding chapters in J2EE guide and spec and tried to play little bit with JSF RI 1.1_01. I found very strange (at least for me) behaviour of regular input component (corresponds to inputText tag).
I have very simple example form (contains "select one", input component and command button). Corresponding backing bean has request scope. I set breakpoints in backing bean getters and during debug found:
1. On initial request both getters were called during rendering phase.
2. On form submit request getter for property bound to input component was called again (this looks strange for me) but getter for property bound to select box was not called (it looks as I've expected). This strange call occurs during validation phase. As far as I understand it was the following flow:
a) During initial request rendering response input box value wwas not stored in component state (I even may suggest that it was not set on component, just corresponding HTML tag with initial value was rendered).
b) On submit form submitted string value of input component was decoded from request parameters but local value was set to null (see above).
c) During validation phase submitted value was successfully converted and validated.
d) Then implementation had to detect component value change and called getValue() in order to obtain old value.
e) Implementation of getValue() first looked for local value field - it is null, then it should request for bound value from model.
I tried different ways to store state (client or server) but it was the same. Sadly MyFaces 1.1.1 implementation did even worse - local value of select was also null during first postback.
I wonder why it was implemented this way...
Thank youI've just started to learn JSF, read corresponding chapters in J2EE guide and spec and tried to play little bit with JSF RI 1.1_01. I found very strange (at least for me) behaviour of regular input component (corresponds to inputText tag).
I have very simple example form (contains "select one", input component and command button). Corresponding backing bean has request scope. I set breakpoints in backing bean getters and during debug found:
1. On initial request both getters were called during rendering phase.
2. On form submit request getter for property bound to input component was called again (this looks strange for me) but getter for property bound to select box was not called (it looks as I've expected). This strange call occurs during validation phase. As far as I understand it was the following flow:
a) During initial request rendering response input box value wwas not stored in component state (I even may suggest that it was not set on component, just corresponding HTML tag with initial value was rendered).
b) On submit form submitted string value of input component was decoded from request parameters but local value was set to null (see above).
c) During validation phase submitted value was successfully converted and validated.
d) Then implementation had to detect component value change and called getValue() in order to obtain old value.
e) Implementation of getValue() first looked for local value field - it is null, then it should request for bound value from model.
I tried different ways to store state (client or server) but it was the same. Sadly MyFaces 1.1.1 implementation did even worse - local value of select was also null during first postback.
I wonder why it was implemented this way...
Thank you -
Values for 'Uid' property must be Text_for style on listbox
<Style x:Name="foo" TargetType="ListBox">
<Setter Property="Background">
<Setter.Value>
<!-- Your resources go here. -->
<SolidColorBrush x:Uid="{ThemeResource ListBoxFocusBackgroundThemeBrush}" Color="Green"/>
</Setter.Value>
</Setter>
</Style>
Error Values for 'Uid' property must be TextWhat are you trying to do here?
As the error states, the x:Uid must be plain text. You cannot bind it to a brush.
The Uid is used for localization to identify which localized resource to use. It makes no sense in the SolidColorBrush context. -
We need to use the JDBC binding component but run into this error when trying it against the Derby sample database:
Gettin bean for {http://j2ee.netbeans.org/wsdl/TestJDBC}serviceport
Adding reply listener for messsage exchange:190736427284860-12041-134354767608280052
Received in-only message 190736427284860-12041-134354767608280052.
Processing one-way inbound messages...
Executing sql . update PURCHASE_ORDER set FLAG = 1 whereORDER_NUM=10398001
Error occured while executing sql.update PURCHASE_ORDER set FLAG = 1 whereORDER_NUM=10398001
Finished processing message with exchange id of [190736427284860-12041-134354767608280052]. Removing the exchange id...
Finished processing outbound messages.
BPCOR-6151:The process instance has been terminated because a fault was not handled; Fault Name is {http://docs.oasis-open.org/wsbpel/2.0/process/executable}selectionFailure; Fault Data is null
com.sun.jbi.engine.bpel.core.bpel.exception.StandardException: I18N: BPCOR-3023: Selection Failure occurred in BPEL({http://enterprise.netbeans.org/bpel/testJDBC/TestJDBC}TestJDBC) at line 22!
Looks like someone forgot the space after "where" which causes the SQL statement to break. Is there a fix?
Also when using the polling type, the log shows select * rather than using the select statement with column values defined in the WSDL.
Received in-only message.
Executing sql . select * from PURCHASE_ORDER
normalized message
Finished executing the SQL successfully.
Accepted the message in JDBC Binding. 190736427284860-12041-134354767608280052
Accepted message with exchange ID 190736427284860-12041-134354767608280052 in JDBC outbound message processor.This is the error caused by the null string database column value retrieved during the polling process:
IN_ONLY select statement processed
normalized message
I18N: BPJBI-3002: Pattern for exchange Id 202752488871337-35996-134357795744840255 is http://www.w3.org/2004/08/wsdl/in-only
ERROR: ''
ERROR: ''
ERROR: ''
ERROR: ''
BPJBI-6010:Failed to process In Only Message M Ex 202752488871337-35996-134357795744840255
java.lang.RuntimeException: BPCOR-6096:Error occurred while converting the node to a string.
at com.sun.jbi.engine.bpel.core.bpel.util.DOMHelper.createXmlString(DOMHelper.java:137)
at com.sun.jbi.engine.bpel.core.bpel.util.DOMHelper.createXmlString(DOMHelper.java:103)
at com.sun.jbi.engine.bpel.core.bpel.engine.impl.JBIMessageImpl.toString(JBIMessageImpl.java:345)
at java.lang.String.valueOf(String.java:2827)
at java.lang.StringBuffer.append(StringBuffer.java:219)
at com.sun.jbi.crl.util.LocalizationSupport.salvage(LocalizationSupport.java:115)
at com.sun.jbi.crl.util.LocalizationSupport.format(LocalizationSupport.java:126)
at com.sun.jbi.crl.util.LocalizationSupport.t(LocalizationSupport.java:181)
at com.sun.jbi.engine.bpel.util.I18n.loc(I18n.java:50)
at com.sun.jbi.engine.bpel.BPELSEInOutThread.processRequest(BPELSEInOutThread.java:612)
at com.sun.jbi.engine.bpel.BPELSEInOutThread.processMsgEx(BPELSEInOutThread.java:308)
at com.sun.jbi.engine.bpel.BPELSEInOutThread.run(BPELSEInOutThread.java:194)
Caused by: javax.xml.transform.TransformerException: java.lang.NullPointerException
at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:717)
at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:313)
at com.sun.jbi.engine.bpel.core.bpel.util.DOMHelper.createXmlString(DOMHelper.java:124)
... 11 more -
Hi:
What is the difference between the bound component.setValue() and component.getValueBinding("value").setValue(facesContext, obj)?
I have a jsf tag as:
<h:outputText id="packageCost_outputText"
binding="#{customerReg.uiOuptuPackageCost}"
value="#{customerReg.packageCost}" />The code piece in back bean as:
packageCost = packageInfoValue.getCost();
System.out.println("=0== packageCost="+packageCost);
FacesContext facesContext = FacesContext.getCurrentInstance();
ValueBinding vb = uiOuptuPackageCost.getValueBinding("value");
// vb.setValue(facesContext, new Double(packageCost));
System.out.println("=1== packageCost="+vb.getValue(facesContext));
uiOuptuPackageCost.setValue(new Double(33.3));
System.out.println("=2== packageCost="+vb.getValue(facesContext));
System.out.println("=3== packageCost="+(Double)uiOuptuPackageCost.getValue());The output for this code piece as:
17:48:30,472 INFO [STDOUT] =0== packageCost=12.99
17:48:30,472 INFO [STDOUT] =1== packageCost=12.99
17:48:30,482 INFO [STDOUT] =2== packageCost=12.99
17:48:30,482 INFO [STDOUT] =3== packageCost=33.3What is changed for using component.getValueBinding("value").setValue(facesContext, obj)? Doesn't it change the component value, or what value is returned from component.getValue() ?
Thanks for your time.
Paulsorry I forgot to include the calcualtor frame class
//calculator frame extends JFrame
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class CalculatorFrame extends JFrame {
public CalculatorFrame() {
setSize(200,320);
setTitle("Hermon Calculator");
setVisible(true);
CalculatorPanel FramePanel= new CalculatorPanel();
Container FrameContainer= getContentPane();
FrameContainer.add(FramePanel);
} -
Difference between binding and value
Hi
I am new to JSF
Can you tell me what is the difference between binding and value attribute of a
JSF component ?
Many thanks.Hi,
the binding is the component association to a managed bean (or backing bean). This allows you to manipulate the component in Java code stored in a managed bean.
The value is what the actual component value is.
Frank -
Difference between using Binding and Value Attribute
what is the deference between using binding and value attribute, when I use binding attribute at the time of Value change listener is behaving like action listener,
Ex:
If I use value attribute, at the time of value change listener the component is not showing the result in the component but when I use Binding attribute it is happening automatically. So I want to know how the binding attribute is working.
I know, at the time of binding attribute the component is creating an instance at the bean side, So even also how it is following the life cycle of the JSF Frame work, and also Please suggest me weather which one is better to use either Binding or Value?JNaveen wrote:
If I use value attribute, at the time of value change listener the component is not showing the result in the component but when I use Binding attribute it is happening automatically. So I want to know how the binding attribute is working.You need to learn about the JSF lifecycle. The ValueChangeEvent is invoked after conversion and validation in the 3rd phase, while the model values are updated in the 4th phase. In the valueChangeListener method you normally use ValueChangeEvent#getNewValue() to get the new value after the change.
I know, at the time of binding attribute the component is creating an instance at the bean side, So even also how it is following the life cycle of the JSF Frame work, and also Please suggest me weather which one is better to use either Binding or Value?Use the 'value' attribute to bind the value to the bean. Use the 'binding' attribute to bind the component to the bean. If you don't need to precreate the component or do other things than getting/setting its value, then there is no need for the 'binding' attribute.
Read on those links if you want to know something more about the JSF lifecycle:
[http://balusc.blogspot.com/2006/09/debug-jsf-lifecycle.html].
[http://jcp.org/aboutJava/communityprocess/final/jsr252/index.html] (pick 1st download). -
How can i get the all values from the Property file to Hashtable?
how can i get the all values from the Property file to Hashtable?
ok,consider my property file name is pro.PROPERTIES
and it contain
8326=sun developer
4306=sun java developer
3943=java developer
how can i get the all keys & values from the pro.PROPERTIES to hashtable
plz help guys..............The Properties class is already a subclass of Hashtable. So if you have a Properties object, you already have a Hashtable. So all you need to do is the first part of that:Properties props = new Properties();
InputStream is = new FileInputStream("tivoli.properties");
props.load(is); -
CO-PA Cost Component do not match with Standard Cost Component Values
Dear Members,
The CO-PA Cost Components (as mapped through KE4R), do not match with Standard Cost Component values for the Group Currency. In local currency the values match.
System is correctly picking up VPRS value, both in local currency and Group Currency, which is equal to the total of Standard Cost Components however, it is the Value Fields linked to the Standard Cost Components in Group Currency that do not match.
In KE40, the Indicator is 4:Released Standard Cost Estimate matching Goods issue Date.
I have verified KEPH/CKMLPKEPH tables. The values are same as that of VPRS.
Any help/clues?
Regards
SatyaHi,
In case of billing documents the group valuation approach is managed in the data structures of the legal valuation in additional value fields. To control costs and revenues in the different views separately, you must create additional value fields and assign them to the data structures.
The field contents must be filled via the CO-PA user exit, they cannot be entered by assigning conditions to value fields. The profit center valuation is updated in a separate ledger. No separate value fields are necessary.
The exit to be used is function module 'EXIT_SAPLKEII_002' ( enhancement COPA0005 ). Within the exit you have the complete SD data avaialble in the tables 'T_ACCIT' and 'T_ACCCR'. The conditions can be found in T_ACCIT and the corresponding values ( linked via 'POSNR' ) in table T_ACCCR. The PA line item and the corresponding SD item in table ACCIT
can be mapped via the line item field 'RPOSN' and the field 'POSNR_SD' in table ACCIT.
regards
Waman -
I am getting the following error with IE9 and Firefox 26 with application express 3.2:
SCRIPT5007: Unable to get value of the property 'nodeName': object is null or undefined
apex_ns_3_1.js, line 589 character 10
this.dialog.check2 = function (e){
var tPar = html_GetTarget(e);
var lEl = $x('apexir_col_values_drop');
var l_Test = true;
****** while(tPar.nodeName != 'BODY'){
tPar = tPar.parentNode;
if(tPar == lEl){l_Test = false;}
if(l_Test){$x_Remove('apexir_col_values_drop')}
This happens when I click the Gear Icon, then Filter, then I click the dropdown arrow under expressions and pick an expression from the list.
If I set (through IE Developer tools) back to IE8 mode, I don't get the error.Guess no one is using 3.2 any longer or no one else gets this error..... Guess I can edit the JavaScript file to trap the error since it really doesn't seem to cause an issue. Just didn't want to have to go that route.
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