ognl

Class ComparisonExpression

java.lang.Object

ognl.SimpleNode

ognl.ExpressionNode

ognl.BooleanExpression

ognl.ComparisonExpression

All Implemented Interfaces:

Serializable, JavaSource, Node, NodeType

Direct Known Subclasses:

ASTEq, ASTGreater, ASTGreaterEq, ASTLessEq, ASTNotEq

public abstract class ComparisonExpression
extends BooleanExpression

Base class for types that compare values.

See Also:

Serialized Form

Field Summary

Fields inherited from class ognl.BooleanExpression

_getterClass

Fields inherited from class ognl.SimpleNode

_children, _id, _parent, _parser

Constructor Summary

Constructors

Constructor and Description
ComparisonExpression(int id)
ComparisonExpression(OgnlParser p, int id)

Method Summary

Methods

Modifier and Type	Method and Description
abstract String	getComparisonFunction()
String	toGetSourceString(OgnlContext context, Object target) Expected to return a java source representation of itself such that it could be turned into a literal java expression to be compiled and executed for ExpressionAccessor.get(OgnlContext, Object) calls.

Methods inherited from class ognl.BooleanExpression

getGetterClass, getSetterClass

Methods inherited from class ognl.ExpressionNode

getExpressionOperator, isConstant, isNodeConstant, isOperation, toSetSourceString, toString

Methods inherited from class ognl.SimpleNode

dump, evaluateGetValueBody, evaluateSetValueBody, flattenTree, getAccessor, getIndexInParent, getNextSibling, getValue, getValueBody, isChain, isEvalChain, isNodeSimpleProperty, isSequence, isSimpleMethod, isSimpleNavigationChain, isSimpleProperty, jjtAddChild, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, lastChild, setAccessor, setValue, setValueBody, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ComparisonExpression

public ComparisonExpression(int id)

ComparisonExpression

public ComparisonExpression(OgnlParser p,
                    int id)

Method Detail

getComparisonFunction

public abstract String getComparisonFunction()

toGetSourceString

public String toGetSourceString(OgnlContext context,
                       Object target)

Description copied from interface: JavaSource

Expected to return a java source representation of itself such that it could be turned into a literal java expression to be compiled and executed for ExpressionAccessor.get(OgnlContext, Object) calls.

Specified by:

toGetSourceString in interface JavaSource

Overrides:

toGetSourceString in class BooleanExpression

Parameters:

context - the OgnlContext within which to perform the operation.

target - the Object from which to retrieve the get source string.

Returns:

Literal java string representation of an object get.