Passing argument to function
hi to all
i have one querry
i want to pass an argument to function through jsf tags
can you help me out
how i will do it
<h:selectOneMenu id="listSP" value="#{ProfileInit.selectedItem}" immediate="true">
<f:selectItems value="#{ProfileInit.populateSubStationsName}" />
</h:selectOneMenu>
public populateSubStationsName(String a,String b){
i want to pass two argument to "populateSubStationsName()" method
is it possible
i heard about the tag name "attribute" is it possible to pass through this tag
Yes, it is. See [1]. But I doubt if you actually need this. Reading the articles at [2] and [3] may give new insights.
[1] http://balusc.blogspot.com/2006/06/communication-in-jsf.html
[2] http://balusc.blogspot.com/2007/09/objects-in-hselectonemenu.html
[3] http://balusc.blogspot.com/2007/10/populate-child-menus.html
Similar Messages
-
How to pass argument in main function ?
How to pass arguments in main function of one class from another class ?
I don't want to pass argument from command prompt.
I want to try something like this -
class Test{
public static void main(String args[]){
for(int i=0;i<args.length;i++)
System.out.println(args);
class Fun{
public static void main(String args[]){
Test t=new Test("Hello","good bye");
when i run Fun class it gives error.
Suggest me how can i do that.In Fun class main method does not take arguments that is fine. In Test class instead of main method you can have constructor to take input parameters as suggested by BalusC
However, if you want to make your existing code work, you can call (though not appropriate) main() method of Test class from main() method of Fun class (As main() method is static object is not required to invoke this):
Test.main(new String[]{"Hello","good bye"});Here is your code:
class Test{
public static void main(String args[]){
for(int i=0;i<args.length;i++)
System.out.println(args);
public class Fun{
public static void main(String args[]){
//Test t=new Test("Hello","good bye");
Test.main(new String[]{"Hello","good bye"});
} Thanks,
Mrityunjoy -
How can I pass arguments to a TestStand sequence with LabWindows 6 ?
Hi
I have created sequences in a TestStand file.
I want to program a sequence with Labwindows 6 which would call all these existing sequences (containing parameters).
I don't have any problems to create the steps "SequenceCall" but i don't know how to pass arguments to the sequences with the TS API.
I have used the look-up strings "TS.SData.SFPath", "TS.SData.SeqName", "TS.SData.ThreadOpt" to program the sequence file / sequence and the multithread option. But now how to program the arguments passing ? I think there is something with the lookup string "ST.SData.ActualArgs"...
Thank u very much for any helpI'm not sure if you want to pass values from TestStand to LabWindows or if you want to pass values in TestStand from a sequence call step to a called sequence.
To get TestStand variables from LabWIndows, use the following function:
tsErrChk (TS_PropertyGetValNumber(testData->seqContextCVI, &errorInfo, "Locals.StartPoint", 0, &dStartPt));
iStartPt = (int)dStartPt;
The TS_PropertyGetValNumber gets the TestStand variable Locals.StartPoint and puts it into the LabWindows variable called dStartPoint. Numbers to and from Test Stand are always a double type. The next line converts it to an integer.
To put a LabWindows value to TestStand, use TS_PropertyPutValNumber.
To pass values from a sequence call step to a called sequence, create variables in the Parameters t
ab on your main sequence. Create same variables on the Parameters tab of the called sequence. In main, specify module to be called in calling step. There is a paramters section on the Edit Sequence Call dialog box which appears. Check the Use Prototype of the Selected Sequence box. You can then list all the parameter variables in the parameters section.
Hope this is what you want.
- tbob
Inventor of the WORM Global -
How to check for the variable passed to a function inside a component
I'm trying to pass a variable to a function inside of a
component in a conditional statement.
How to check the existance of this variable inside the
function so that I can use the right <CFarguments>:
in aForm.cfm I have:
<cfinvoke component="#application.cfcroot#.business.Order"
method="selOrderItems"
returnvariable="q_OrderItems"
OrderItemAbbreviation="Min"></cfinvoke>
<cfset MCompIDs = ValueList(q_OrderItems.OrderItemID)>
<cfif listFind(MCompIDs,attributes.CompID)>
<cfset isM = true>
<cfelse>
<cfset isM = false>
</cfif>
<cfinvoke component="#application.cfcroot#.business.Order"
method="selOrderItems"
returnvariable="q_OrderItems"
OrderItemAbbreviation="SMEnroll"></cfinvoke>
<cfset SM_CompIDs =
ValueList(q_OrderItems.OrderItemID)>
<cfif listFind(SM_CompIDs,attributes.CompID)>
<cfset isSM = true>
<cfelse>
<cfset isSM = false>
</cfif>
<CFIF isSM>
<cfset temppath = frmcreator.buildFrm(isSMFlag=isSM)>
<CFELSE>
<cfset temppath = frmcreator.buildFrm(isMFlag=isM)>
</CFIF>
On aFormComp.cfc where the function is,
I checked the existance of isSMFlag this way and I got error
saying that :
Context validation error for tag CFARGUMENT.; The tag must be
nested inside a CFFUNCTION tag.
How can I properly check the existance of isSMFlag inside the
function so I can use the right cfarguments?
<CFFUNCTION NAME="buildFrm" access="public"
returntype="String" output="No">
<cfif StructKeyExists(arguments, "isSMFlag")>
<CFARGUMENT NAME="isSMFlag" REQUIRED="YES"
TYPE="NUMERIC">
<cfelse>
<CFARGUMENT NAME="isMFlag" REQUIRED="YES"
TYPE="NUMERIC">
</cfif>
........ etc
</CFFUNCTION><CFFUNCTION NAME="buildFrm" access="public"
returntype="String"
output="No">
<cfif StructKeyExists(arguments, "isSMFlag")>
<CFARGUMENT NAME="isSMFlag" REQUIRED="YES"
TYPE="NUMERIC">
<cfelse>
<CFARGUMENT NAME="isMFlag" REQUIRED="YES"
TYPE="NUMERIC">
</cfif>
........ etc
</CFFUNCTION>
NOT this way, that is for sure.
The <cfargument ...> tag is for defining the arguments
a function
accepts either optional or not, but they are not required.
Give this a
try to see the differences.
test.cfc
<cfcomponent>
<cffunction name="a">
<cfdump var="#arguments#">
</cffunction>
<cffunction name="b">
<cfargument name="foo">
<cfargument name="bar">
<cfdump var="#arguments#>
</cffunction>
</cfcomponent>
test.cfm
<cfset something = createObject("component","test")>
<cfoutput>
#something.a("blue","green")#
#something.b("blue","green")#
</cfoutput>
Not tested or debugged so watch out for typos. -
Generic problem in passing arguments ( question )
I wrote some generic class that hold some generic map.
When i looking some key in this map - i want to have the value of the key and set this value to some argument that i pass to the function that look for it.
I dont want to return the value as return value of the function. ( i must have return value as Boolean )
My paroblem is that when ever i call this function - i get back the "value" as null - and i dont know why and how to solve this problem.
public abstract class SomeTable<T, U> extends Table{
protected Map<T, U> currentTable = new HashMap<T, U>();
public Boolean findItem(T itemToFind , U value){
value = currentTable.get(itemToFind);
return ( value == null );
}Edited by: Yanshof on Dec 3, 2008 6:02 AM
Edited by: Yanshof on Dec 3, 2008 6:11 AMYou don't want to get the value from the key, you want to set it. Something more like:
public Boolean findItem(T itemToFind , U value){
currentTable.put(itemToFind, value);
return (value == null);
}Maybe you should review the functionality of a HashMap and variable assignment..
Edit: Unless of course I'm misunderstanding your goal (ejp's post makes me think I am :) )
Edited by: Pheer on Dec 2, 2008 10:15 PM -
I need to pass an ip address into a method. So I know its type InetAddress. If the IPAddress is 10.100.50.33. how would I pass it in to the method. eg:
SysNameScanCommand( )Would it be like this?
SysNameScanCommand(InetAddress 10.100.50.33 )It depends what kind of argument your function is expecting. If it wants a String, you could call
SysNameScanCommand("10.100.50.33");If it wants an InternetAddress object, then the call would be something like:
SysNameScanCommand(new InternetAddress("10.100.50.33")); -
Passing arguments to a custom component in the constructor
I would like to know if it is possible to pass arguments to a
custom component in the constructor when I'm instantiating it
within Actionscript. I've not seen anyone do this, so at the moment
I have a couple of public properties defined on the custom
component and then do the following:
var myComponent:TestComponent = new TestComponent();
myComponent.propertyOne = true;
myComponent.propertyTwo = 12;
etc.
Whereas I'd like to do something like:
var myComponent:TestComponent = new TestComponent( true, 12
Any ideas if this is possible?Another approach as opposed to creating init function is to link symbol with autogenerated class (just assign it a class but do not create *.as file for it) and use it just as graphical view with no functionality (well only MovieClip's functionality).
ViewClip.as
public class ViewClip extends MovieClip {
public var view:MovieClip;
public function ViewClip(){
this.view = instantiateView();
this.addChild(view);
protected function instantiateView():MovieClip {
return new MovieClip();
Circle.as
public class Circle extends ViewClip {
public function Circle(scaleX:Number, scaleY:Number) {
super();
override protected function instantiateView():MovieClip {
return new ClassView(); -
How can we pass argument to static block of code????
hi ,
My question is we can use static initialization block for having functionality like constructors for initializing static variable ,but we cannot pass arguments to static initialization block then how can I create functionality like parametrized constructors.Whats the alternative shall I use a static method to perform this functionality,since all methods in given class are static and
there is no need of creating instance of class.jduprez wrote:
Hello Jussi,Salut Jérôme
That's probably a more maintenable design.
However what do you base your remark on - I'm struck by the word obviously?
Is there some design principle from which this advice so naturally ensues that it is obvious ?Yes I read my posting later on and thought about changing it, since it's not necessarily an obvious solution. I was making assumptions that I didn't clarify from the OP.
In the OP's case, the "state" on which those methods operate is apparently fixed, presumably at the beginning of the program, so what's wrong with all this staticness?
I can list:
- threading issues (a non-issue after some initialization phase), that you wouldn't have with immutable instances
- harder unit-testing (that's not an OO design problem, more a methodology problem)
- mix and confusion between static and non-static state if the class ever happens to have both, in future maintenance. All good points, I see all-static classes as a "code smell" and especially in this case when there's parametrization involved.
Now we just need to have the OP explain his situation a bit better. -
Pass arguments to class constructor
Hello,
Please who can help me to solve my problem? I dynamic
creating class and I want to pass arguments.
I know how can I do creating Function (apply), but I coulnd
find constructor - apply.
var c:Class = Class(getDefinition(className));
var instance:Object;
if(obj){
var args:Array = deserialize(obj);
if(args.length == 1)
instance = new c(args[0]);
else if(args.length == 2)
instance = new c(args[0], args[1]);
else if(args.length == 3)
instance = new c(args[0], args[1], args[2]);
else if(args.length == 4)
instance = new c(args[0], args[1], args[2], args[3]);
else if(args.length == 5)
instance = new c(args[0], args[1], args[2], args[3],
args[4]);
else if(args.length == 6)
instance = new c(args[0], args[1], args[2], args[3],
args[4], args[5]);
else if(args.length == 7)
instance = new c(args[0], args[1], args[2], args[3],
args[4], args[5], args[6]);
else if(args.length == 8)
instance = new c(args[0], args[1], args[2], args[3],
args[4], args[5], args[6], args[7]);
else
return serialize("Unexpected number of arguments");
}else{
instance = new c();
}Even more follow up advice. Once you have fixed the problem you will then face a new problem.
Test.Inner i1 = t.new Inner(); // compile error
Test.Inner i2 = t.new Inner(1); // okayThis is due to the default constructor not being provided as you have defined your own constructor. -
Passing arguments from Air to Photoshop jsx script
I would like to invoke JavaScript file in Photoshop from my Adobe Air application. I managed to call my script with the following code:
// Create native startup info
nativeProcessStartupInfo = new NativeProcessStartupInfo();
nativeProcessStartupInfo.executable = filePhotoshop; // File referencing Photoshop exe
// Create Vector array to pass arguments
procarg = new Vector.<String>();
procarg.push("start");
procarg.push(jsFileToCall);// String with path to my jsx file
procarg.push(scriptData); // String with argument to pass to jsx file
nativeProcessStartupInfo.arguments = procarg;
// Create native process object for calling executable file
process = new NativeProcess();
// SET ERROR HANDLERS
process.addEventListener(ProgressEvent.STANDARD_ERROR_DATA ,onError,false,0,true);
process.addEventListener(IOErrorEvent.STANDARD_ERROR_IO_ERROR ,onError,false,0,true);
process.addEventListener(IOErrorEvent.STANDARD_INPUT_IO_ERROR ,onError,false,0,true);
process.addEventListener(IOErrorEvent.STANDARD_OUTPUT_IO_ERROR ,onError,false,0,true);
process.addEventListener(ProgressEvent.STANDARD_ERROR_DATA ,onError,false,0,true);
// CALL NATIVE PROCESS
process.start(nativeProcessStartupInfo);
The Photoshop app is started, my JavaScript is invoked, but the argument is not passed into jsx.
Is there any method how to pass arguments to script in Photoshop? (I know that I can use the file to pass the parameters, but I do not like that solution.)
Thanks in advance for any hint.
Zdenek MThe only documented way I know of is programming the script as a Photoshop Plug-in that has a dialog. Then record using the script in an action. The script will record the arguments used in its dialog into the Photoshop Actions step. Then when the action is used played the action recorded arguments are retrived and the script bypasses displaying its dialog.
However In CS3 I looked at Adobe Photoshop Image Processor JavaScript it internaly used the Fit Image Plug-in Script and passed the width and hight to it. So it is posible to pass arguments from one JSX to an JSX Plug-in Script.
From CS5 "Image Processor.jsx"
// use the fit image automation plug-in to do this work for me
function FitImage( inWidth, inHeight ) {
if ( inWidth == undefined || inHeight == undefined ) {
alert( strWidthAndHeight );
return;
var desc = new ActionDescriptor();
var unitPixels = charIDToTypeID( '#Pxl' );
desc.putUnitDouble( charIDToTypeID( 'Wdth' ), unitPixels, inWidth );
desc.putUnitDouble( charIDToTypeID( 'Hght' ), unitPixels, inHeight );
var runtimeEventID = stringIDToTypeID( "3caa3434-cb67-11d1-bc43-0060b0a13dc4" );
executeAction( runtimeEventID, desc, DialogModes.NO );
If You can write a file from Adobe Air you could also write the jsx file to pass the args you want to pass a to plug-in script via the ActionManager. -
Java.lang.VerifyError - Incompatible object argument for function call
Hi all,
I'm developing a JSP application (powered by Tomcat 4.0.1 in JDK 1.3, in Eclipse 3.3). Among other stuff I have 3 classes interacting with an Oracle database, covering 3 use cases - renaming, adding and deleting an database object. The renaming class simply updates the database with a String variable it receives from the request object, whereas the other two classes perform some calculations with the request data and update the database accordingly.
When the adding or deleting classes are executed, by performing the appropriate actions through the web application, Tomcat throws the following:
java.lang.VerifyError: (class: action/GliederungNewAction, method: insertNewNode signature: (Loracle/jdbc/driver/OracleConnection;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;I)V) Incompatible object argument for function call
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:120)
at action.ActionMapping.perform(ActionMapping.java:53)
at ControllerServlet.doResponse(ControllerServlet.java:92)
at ControllerServlet.doPost(ControllerServlet.java:50)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
...The renaming works fine though. I have checked mailing lists and forums as well as contacted the company's java support but everything I have tried out so far, from exchanging the xerces.jar files found in JDOM and Tomcat to rebuidling the project didn't help.
I just can't explain to myself why this error occurs and I don't see how some additional Java code in the other 2 classes could cause it?
I realize that the Tomcat and JDK versions I'm using are totally out of date, but that's company's current standard and I can't really change that.
Here's the source code. I moved parts of the business logic from Java to Oracle recently but I left the SQL statements that the Oracle stored procedures are executing if it helps someone.
package action;
import java.sql.CallableStatement;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.StringTokenizer;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import oracle.jdbc.driver.OracleConnection;
* This class enables the creation and insertion of a new catalogue node. A new node
* is always inserted as the last child of the selected parent node.
public class GliederungNewAction implements Action {
public String perform(ActionMapping mapping, HttpServletRequest request,
HttpServletResponse response) {
// fetch the necessary parameters from the JSP site
// the parent attribute is the selected attribute!
String parent_attribute = request.getParameter("attr");
String catalogue = request.getParameter("catalogue");
int parent_sequenceNr = Integer.parseInt(request.getParameter("sort_sequence"));
// connect to database
HttpSession session = request.getSession();
db.SessionConnection sessConn = (db.SessionConnection) session.getAttribute("connection");
if (sessConn != null) {
try {
sessConn.setAutoCommit(false);
OracleConnection connection = (OracleConnection)sessConn.getConnection();
int lastPosition = getLastNodePosition( getLastChildAttribute(connection, catalogue, parent_attribute) );
String newNodeAttribute = createNewNodeAttribute(parent_attribute, lastPosition);
// calculate the sequence number
int precedingSequenceNumber = getPrecedingSequenceNumber(connection, catalogue, parent_attribute);
if ( precedingSequenceNumber == -1 ) {
precedingSequenceNumber = parent_sequenceNr;
int sortSequence = precedingSequenceNumber + 1;
setSequenceNumbers(connection, catalogue, sortSequence);
// insert the new node into DB
insertNewNode(connection, catalogue, newNodeAttribute, parent_attribute, "Neuer Punkt", sortSequence);
connection.commit();
} catch(SQLException ex) {
ex.printStackTrace();
return mapping.getForward();
* Creates, fills and executes a prepared statement to insert a new entry into the specified table, representing
* a new node in the catalogue.
private void insertNewNode(OracleConnection connection, String catalogue, String attribute, String parent_attribute, String description, int sortSequence) {
try {
String callAddNode = "{ call fasi_lob.pack_gliederung.addNode(:1, :2, :3, :4, :5) }";
CallableStatement cst;
cst = connection.prepareCall(callAddNode);
cst.setString(1, catalogue);
cst.setString(2, attribute);
cst.setString(3, parent_attribute);
cst.setString(4, description);
cst.setInt(5, sortSequence);
cst.execute();
cst.close();
} catch (SQLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
// String insertNewNode = "INSERT INTO vstd_media_cat_attributes " +
// "(catalogue, attribute, parent_attr, description, sort_sequence) VALUES(:1, :2, :3, :4, :5)";
// PreparedStatement insertStmt;
// try {
// insertStmt = connection.prepareStatement(insertNewNode);
// insertStmt.setString(1, catalogue);
// insertStmt.setString(2, attribute);
// insertStmt.setString(3, parent_attribute);
// insertStmt.setString(4, description);
// insertStmt.setInt(5, sortSequence);
// insertStmt.execute();
// insertStmt.close();
// } catch (SQLException e) {
// e.printStackTrace();
* This method returns the attribute value of the last child of the parent under which
* we want to insert a new node. The result set is sorted in descending order and only the
* first result (that is, the last child under this parent) is fetched.
* If the parent node has no children, "parent_attr.0" is returned.
* @param connection
* @param catalogue
* @param parent_attribute
* @return attribute of the last child under this parent, or "parent_attr.0" if parent has no children
private String getLastChildAttribute(OracleConnection connection, String catalogue, String parent_attribute) {
String queryLastChild = "SELECT attribute FROM vstd_media_cat_attributes " +
"WHERE catalogue=:1 AND parent_attr=:2 ORDER BY sort_sequence DESC";
String lastChildAttribute;
PreparedStatement ps;
try {
ps = connection.prepareStatement(queryLastChild);
ps.setString(1, catalogue);
ps.setString(2, parent_attribute);
ResultSet rs = ps.executeQuery();
/* If a result is returned, the selected parent already has children.
* If not set the lastChildAttribute to parent_attr.0
if (rs.next()) {
lastChildAttribute = rs.getString("attribute");
} else {
lastChildAttribute = parent_attribute.concat(".0");
rs.close();
return lastChildAttribute;
} catch (SQLException e) {
e.printStackTrace();
return null;
* This helper method determines the position of the last node in the attribute.
* i.e for 3.5.2 it returns 2, for 2.1 it returns 1 etc.
* @param attribute
* @return position of last node in this attribute
private int getLastNodePosition(String attribute) {
StringTokenizer tokenizer = new StringTokenizer(attribute, ".");
String lastNodePosition = "0";
while( tokenizer.hasMoreTokens() ) {
lastNodePosition = tokenizer.nextToken();
return Integer.parseInt(lastNodePosition);
* This method calculates the attribute of a node being inserted
* by incrementing the last child position by 1 and attaching the
* incremented position to the parent.
* @param parent_attr
* @param lastPosition
* @return attribute of the new node
private String createNewNodeAttribute(String parent_attr, int lastPosition) {
String newPosition = new Integer(lastPosition + 1).toString();
return parent_attr.concat("." + newPosition);
* This method checks if the required sequence number for a new node is already in use and
* handles the sequence numbers accordingly.
* If the sequence number for a new node is NOT IN USE, the method doesn't do anything.
* If the sequence number for a new node is IN USE, the method searches for the next free
* sequence number by incrementing the number by one and repeating the query until no result
* is found. Then all the sequence numbers between the required number (including, >= relation)
* and the nearest found free number (not including, < relation) are incremented by 1, as to
* make space for the new node.
* @param connection
* @param catalogue
* @param newNodeSequenceNumber required sequence number for the new node
private void setSequenceNumbers(OracleConnection connection, String catalogue, int newNodeSequenceNumber) {
// 1. check if the new sequence number exists - if no do nothing
// if yes - increment by one and see if exists
// repeat until free sequence number exists
// when found increment all sequence numbers freeSeqNr > seqNr >= newSeqNr
String query = "SELECT sort_sequence FROM vstd_media_cat_attributes " +
"WHERE catalogue=:1 AND sort_sequence=:2";
PreparedStatement ps;
try {
ps = connection.prepareStatement(query);
ps.setString(1, catalogue);
ps.setInt(2, newNodeSequenceNumber);
ResultSet rs = ps.executeQuery();
// if no result, the required sequence number is free - nothing to do
if( rs.next() ) {
int freeSequenceNumber = newNodeSequenceNumber;
do {
ps.setString(1, catalogue);
ps.setInt(2, freeSequenceNumber++);
rs = ps.executeQuery();
} while( rs.next() );
// increment sequence numbers - call stored procedure
String callUpdateSeqeunceNrs = "{ call fasi_lob.pack_gliederung.updateSeqNumbers(:1, :2, :3) }";
CallableStatement cst = connection.prepareCall(callUpdateSeqeunceNrs);
cst.setString(1, catalogue);
cst.setInt(2, newNodeSequenceNumber);
cst.setInt(3, freeSequenceNumber);
cst.execute();
cst.close();
// String query2 = "UPDATE vstd_media_cat_attributes " +
// "SET sort_sequence = (sort_sequence + 1 ) " +
// "WHERE catalogue=:1 sort_sequnce >=:2 AND sort_sequence <:3";
// PreparedStatement ps2;
// ps2 = connection.prepareStatement(query2);
// ps2.setString(1, catalogue);
// ps2.setInt(2, newNodeSequenceNumber);
// ps2.setInt(3, freeSequenceNumber);
// ps.executeUpdate();
// ps.close();
} // end of if block
rs.close();
} catch (SQLException e) {
e.printStackTrace();
* This method finds the last sequence number preceding the sequence number of a node
* that is going to be inserted. The preceding sequence number is required to calculate
* the sequence number of the new node.
* We perform a hierarchical query starting from the parent node: if a result is returned,
* we assign the parent's farthest descendant's node sequence number; if no result
* is returned, we assign the parent's sequence number.
* @param connection
* @param catalogue
* @param parent_attr parent attribute of the new node
* @return
private int getPrecedingSequenceNumber(OracleConnection connection, String catalogue, String parent_attr) {
int sequenceNumber = 0;
String query = "SELECT sort_sequence FROM vstd_media_cat_attributes " +
"WHERE catalogue=:1 " +
"CONNECT BY PRIOR attribute = parent_attr START WITH parent_attr=:2 " +
"ORDER BY sort_sequence DESC";
try {
PreparedStatement ps = connection.prepareStatement(query);
ps.setString(1, catalogue);
ps.setString(2, parent_attr);
ResultSet rs = ps.executeQuery();
if ( rs.next() ) {
sequenceNumber = rs.getInt("sort_sequence");
} else {
// TODO: ggf fetch from request!
sequenceNumber = -1;
rs.close();
ps.close();
} catch (SQLException e) {
e.printStackTrace();
return sequenceNumber;
}After further googling I figured out what was causing the problem: in eclipse I was referring to external libraries located in eclipse/plugins directory, whereas Tomcat was referring to the same libraries (possibly older versions) in it's common/lib directory.
-
How to run a java class from a shell script with passing arguments
hi,
I have a jar with all the required classes. I was using ant to run the classes i needed.
But now i want to use a shell script to run the class, also the class accepts some arguments so when script is run it should accept arguments.
So can any one tell me how to set class paths, jar location and call the required class from shell script or batch file with passing arguments to it.
Thanks in advance.Let's say that the order of arguments is as below
1. Jar file name
2. Classpath
Your shell script would look like this
java -cp $CLASSPATH:$2 -jar $1 I am assuming that your jar file has the required main-class entry in its manifest. Note that $1...$9 represent the arguments to this shell script.
The same goes for a batch file
java -cp %CLASSPATH%;%2 -jar %1 -
How to pass argument to the Java Plugin JVM w/o using the Control Panel?
I want to deploy an applet to be loaded by the Java Plug In
and fix some settings of its Java Virtual Machine.
The JPI Control Panel offers two ways to pass arguments to the JVM,
none satisfactory.
1. while interactive via the Control Panel Window.
This cannot be a solution for a deployed applet.
or
2. by editing the system generated file that stores
the settings of the Plugin Control Panel, using a property
named javaplugin.jre.params.
The problem with this method is that if forces to access
and edit this property file which is stored at various locations
depending the client platform. Then, it may collide with other
settings for other applets.
Is there a way to pass the arguments to the JVM
from within the html file?
Has anyone found a solution to this question?
JPSI am interested in this issue as well.
Did anyone find a reliable way to specify the runtime parameters that should be used by the Java Plug-in in order to execute a given Java applet?
I believe a good place to specify these runtime parameters would be the applet's JAR manifest: only digitally signed applets should be able to set the desired runtime parameters...
Any comments / suggestion would be greatly appreciated.
Regards,
Marco. -
How to pass argument in manifest file
Hi,
I want to pass argument to main class in jar. Is there any option in manifest file.Hmm..
Seems that my sentence above isn't so correct.
It possible to add custom attribute: value pairs into manifest file and
read it later from Java class.
Here is code sample:
public class ManifestTest {
public static void main(String[] args) {
try {
java.util.jar.JarFile jar = new java.util.jar.JarFile(System.getProperty("java.class.path"));
for (java.util.Iterator it = jar.getManifest().getMainAttributes().keySet().iterator();it.hasNext();) {
Object curKey = it.next();
System.out.println("key: " + curKey + ", value: " + jar.getManifest().getMainAttributes().get(curKey));
} catch (Throwable t) {
System.out.println("exception occured: " + t);
} -
Passing Arguments in a Multiple JFrame project
I am trying to pass Arguments from MainApp.java to SubApp.java.
Is there someone that have an example or fix the sample program included?
tks a lot
sage49
I based my program on the following 2 programs that I got from this forum!!
The following is the MainApp.java
import javax.swing.*;
import java.awt.event.*;
class MainApp extends JFrame {
MainApp() {
super( "Main Application" );
JButton button = new JButton( "Show Sub Application" );
button.addActionListener( new ActionListener() {
public void actionPerformed( ActionEvent e ) {
// need to pass a string to SubApp in the following line
JFrame app = new SubApp();
dispose();
getContentPane().add( button );
setDefaultCloseOperation( DISPOSE_ON_CLOSE );
pack();
show();
public static void main( String[] args ) {
MainApp app = new MainApp();
}The following is the SubApp.java
import javax.swing.*;
import java.awt.event.*;
class SubApp extends JFrame {
// need to accept a String as Arguments
SubApp() {
super( "Another Application" );
JButton button = new JButton( "Show Main Application" );
button.addActionListener( new ActionListener() {
public void actionPerformed( ActionEvent e ) {
JFrame app = new MainApp();
dispose();
getContentPane().add( button );
setDefaultCloseOperation( DISPOSE_ON_CLOSE );
pack();
show();
public static void main( String[] args ) {
SubApp app = new SubApp();
}Hi,
I have done what you suggested, Now I get an error on the subApp on the main.
see What I tried in the code.
MainApp.java
import javax.swing.*;
import java.awt.event.*;
class MainApp extends JFrame {
MainApp() {
super( "Main Application" );
final String a ="this is the string";
JButton button = new JButton( "Show Sub Application" );
button.addActionListener( new ActionListener() {
public void actionPerformed( ActionEvent e ) {
JFrame app = new SubApp(a);
dispose();
getContentPane().add( button );
setDefaultCloseOperation( DISPOSE_ON_CLOSE );
pack();
show();
public static void main( String[] args ) {
MainApp app = new MainApp();
}The SubApp.java
import javax.swing.*;
import java.awt.event.*;
class SubApp extends JFrame {
private String mystring;
SubApp(String mystring) {
super( "Another Application" );
this.mystring = mystring;
JButton button = new JButton( "Show Main Application" );
button.addActionListener( new ActionListener() {
public void actionPerformed( ActionEvent e ) {
JFrame app = new MainApp();
dispose();
getContentPane().add( button );
setDefaultCloseOperation( DISPOSE_ON_CLOSE );
pack();
show();
public static void main( String[] args ) {
// tried = SubApp app = new SubApp(mystring);
// tried = SubApp app = new SubApp(a);
// tried = SubApp app = new SubApp(String a);
// tried = SubApp app = new SubApp(String);
SubApp app = new SubApp(); // this is the line I get the error
}I get the following error:
Cannot find Symbol
symbol : constructor SubApp()
location: class SubApp
SubApp app = new SubApp();Tks a lot
sage49
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