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java.lang.Objectorg.apache.commons.jelly.TagSupport
org.apache.commons.jelly.tags.core.InvokeStaticTag
public class InvokeStaticTag
A Tag which can invoke a static method on a class, without an instance of the class being needed.
Like the InvokeTag
, this tag can take a set of
arguments using the ArgTag
.
The following attributes are required:
Field Summary | |
---|---|
private java.lang.String |
className
the object to invoke the method on |
private java.lang.String |
exceptionVar
the variable where the method's exception is exported |
private java.lang.String |
methodName
the method to invoke |
private java.util.List |
paramTypes
|
private java.util.List |
paramValues
|
private java.lang.String |
var
the variable exported |
Fields inherited from class org.apache.commons.jelly.TagSupport |
---|
body, context, hasTrimmed, parent, shouldTrim |
Constructor Summary | |
---|---|
InvokeStaticTag()
|
Method Summary | |
---|---|
void |
addArgument(java.lang.Class type,
java.lang.Object value)
Adds an argument to supply to the method |
protected JellyTagException |
createLoadClassFailedException(java.lang.Exception e)
Factory method to create a new JellyTagException instance from a given failure exception |
void |
doTag(XMLOutput output)
Evaluates this tag after all the tags properties have been initialized. |
protected java.lang.Class |
loadClass()
Loads the class using either the class loader which loaded me or the current threads context class loader |
void |
setClassName(java.lang.String className)
Sets the fully qualified class name containing the static method |
void |
setExceptionVar(java.lang.String var)
Sets the name of a variable that exports the exception thrown by the method's invocation (if any) |
void |
setMethod(java.lang.String methodName)
Sets the name of the method to invoke |
void |
setVar(java.lang.String var)
Sets the name of the variable exported by this tag |
Methods inherited from class org.apache.commons.jelly.TagSupport |
---|
findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, getBody, getBodyText, getBodyText, getContext, getParent, invokeBody, isEscapeText, isTrim, setBody, setContext, setEscapeText, setParent, setTrim, trimBody |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
---|
private java.lang.String var
private java.lang.String exceptionVar
private java.lang.String methodName
private java.lang.String className
private java.util.List paramTypes
private java.util.List paramValues
Constructor Detail |
---|
public InvokeStaticTag()
Method Detail |
---|
public void setVar(java.lang.String var)
var
- The variable namepublic void setExceptionVar(java.lang.String var)
public void setMethod(java.lang.String methodName)
method
- The method namepublic void setClassName(java.lang.String className)
className
- The name of the classpublic void addArgument(java.lang.Class type, java.lang.Object value)
addArgument
in interface ArgTagParent
type
- The Class type of the argumentvalue
- The value of the argumentpublic void doTag(XMLOutput output) throws JellyTagException
Tag
doTag
in interface Tag
JellyTagException
protected java.lang.Class loadClass() throws java.lang.ClassNotFoundException
java.lang.ClassNotFoundException
protected JellyTagException createLoadClassFailedException(java.lang.Exception e)
e
- is the exception which occurred attempting to load the class
|
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