Package org.apache.commons.jxpath.ri.compiler

Class Operation

java.lang.Object

org.apache.commons.jxpath.ri.compiler.Expression

org.apache.commons.jxpath.ri.compiler.Operation

Direct Known Subclasses:

CoreFunction, CoreOperation, ExtensionFunction

public abstract class Operation
extends Expression

Version:

$Revision: 652845 $ $Date: 2008-05-02 12:46:46 -0500 (Fri, 02 May 2008) $

Author:

Dmitri Plotnikov

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.commons.jxpath.ri.compiler.Expression

Expression.PointerIterator, Expression.ValueIterator

Field Summary

Fields

Modifier and Type	Field	Description
protected Expression[]	args	Expression[] of arguments

Fields inherited from class org.apache.commons.jxpath.ri.compiler.Expression

NOT_A_NUMBER, ONE, ZERO

Constructor Summary

Constructors

Constructor	Description
Operation(Expression[] args)	Create a new Operation.

Method Summary

Modifier and Type	Method	Description
boolean	computeContextDependent()	Implemented by subclasses and result is cached by isContextDependent()
Expression[]	getArguments()	Get the arguments.

Methods inherited from class org.apache.commons.jxpath.ri.compiler.Expression

compute, computeValue, isContextDependent, iterate, iteratePointers

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

args

protected Expression[] args

Expression[] of arguments

Constructor Detail

Operation

public Operation(Expression[] args)

Create a new Operation.

Parameters:

args - Expression[]

Method Detail

getArguments

public Expression[] getArguments()

Get the arguments.

Returns:

Expression[]

computeContextDependent

public boolean computeContextDependent()

Description copied from class: Expression

Implemented by subclasses and result is cached by isContextDependent()

Specified by:

computeContextDependent in class Expression

Returns:

calculated context-dependentness as boolean