FuncConcat (Xalan-Java 2.7.2)

java.lang.Object
- org.apache.xpath.Expression
- - org.apache.xpath.functions.Function
  - - org.apache.xpath.functions.FunctionOneArg
    - - org.apache.xpath.functions.Function2Args
      - org.apache.xpath.functions.Function3Args
        
        org.apache.xpath.functions.FunctionMultiArgs
        
        org.apache.xpath.functions.FuncConcat

All Implemented Interfaces:

java.io.Serializable, javax.xml.transform.SourceLocator, ExpressionNode, ExpressionOwner, XPathVisitable
```
public class FuncConcat
extends FunctionMultiArgs
```
Execute the Concat() function.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

FuncConcat()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`checkNumberArgs(int argNum)`	Check that the number of arguments passed to this function is correct.
`XObject`	`execute(XPathContext xctxt)`	Execute the function.

Methods inherited from class org.apache.xpath.functions.FunctionMultiArgs
callArgVisitors, canTraverseOutsideSubtree, deepEquals, fixupVariables, getArgs, setArg

Methods inherited from class org.apache.xpath.functions.Function3Args
getArg2

Methods inherited from class org.apache.xpath.functions.Function2Args
getArg1

Methods inherited from class org.apache.xpath.functions.FunctionOneArg
getArg0, getExpression, setExpression

Methods inherited from class org.apache.xpath.functions.Function
callVisitors, postCompileStep

Methods inherited from class org.apache.xpath.Expression
asIterator, asIteratorRaw, asNode, assertion, bool, error, execute, execute, execute, executeCharsToContentHandler, exprAddChild, exprGetChild, exprGetNumChildren, exprGetParent, exprSetParent, getColumnNumber, getExpressionOwner, getLineNumber, getPublicId, getSystemId, isNodesetExpr, isStableNumber, num, warn, xstr

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - FuncConcat
```
public FuncConcat()
```
- Method Detail
  - execute
```
public XObject execute(XPathContext xctxt)
                throws javax.xml.transform.TransformerException
```
    Execute the function. The function must return a valid object.
    
    Overrides:
    
    execute in class Function
    
    Parameters:
    
    xctxt - The current execution context.
    
    Returns:
    
    A valid XObject.
    
    Throws:
    
    javax.xml.transform.TransformerException
  - checkNumberArgs
```
public void checkNumberArgs(int argNum)
                     throws WrongNumberArgsException
```
    Check that the number of arguments passed to this function is correct.
    
    Overrides:
    
    checkNumberArgs in class FunctionMultiArgs
    
    Parameters:
    
    argNum - The number of arguments that is being passed to the function.
    
    Throws:
    
    WrongNumberArgsException