org.apache.commons.jxpath.ri.compiler
Class CoreOperationCompare

java.lang.Object
  org.apache.commons.jxpath.ri.compiler.Expression
      org.apache.commons.jxpath.ri.compiler.Operation
          org.apache.commons.jxpath.ri.compiler.CoreOperation
              org.apache.commons.jxpath.ri.compiler.CoreOperationCompare

Direct Known Subclasses:

CoreOperationEqual, CoreOperationNotEqual

public abstract class CoreOperationCompare

extends CoreOperation

Common superclass for the implementations of Expression for the operations "=" and "!=".

Version:

$Revision: 1.3 $ $Date: 2004/02/29 14:17:38 $

Author:

Dmitri Plotnikov

Nested Class Summary

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

Expression.PointerIterator, Expression.ValueIterator

Field Summary

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

args

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

NOT_A_NUMBER, ONE, ZERO

Constructor Summary

CoreOperationCompare(Expression arg1, Expression arg2)

Method Summary

protected boolean	contains(java.util.Iterator it, java.lang.Object value)
protected boolean	equal(EvalContext context, Expression left, Expression right) Compares two values
protected boolean	equal(java.lang.Object l, java.lang.Object r)
protected boolean	findMatch(java.util.Iterator lit, java.util.Iterator rit)

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

compute, computeValue, getPrecedence, getSymbol, isSymmetric, toString

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

computeContextDependent, getArguments

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

isContextDependent, iterate, iteratePointers

Methods inherited from class java.lang.Object

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

Constructor Detail

CoreOperationCompare

public CoreOperationCompare(Expression arg1,
                            Expression arg2)

Method Detail

equal

protected boolean equal(EvalContext context,
                        Expression left,
                        Expression right)

Compares two values

contains

protected boolean contains(java.util.Iterator it,
                           java.lang.Object value)

findMatch

protected boolean findMatch(java.util.Iterator lit,
                            java.util.Iterator rit)

equal

protected boolean equal(java.lang.Object l,
                        java.lang.Object r)