org.apache.tapestry.services.impl

Class ExpressionEvaluatorImpl

java.lang.Object

org.apache.tapestry.services.impl.ExpressionEvaluatorImpl

All Implemented Interfaces:

ExpressionEvaluator

public class ExpressionEvaluatorImpl
extends java.lang.Object
implements ExpressionEvaluator

Since:

4.0

Author:

Howard M. Lewis Ship

Constructor Summary

Constructors

Constructor and Description
ExpressionEvaluatorImpl()

Method Summary

Methods

Modifier and Type	Method and Description
void	initializeService()
boolean	isConstant(java.lang.String expression) Returns true if the expression evaluates to a constant or other literal value.
java.lang.Object	read(java.lang.Object target, java.lang.String expression) Reads a property of the target, defined by the expression.
java.lang.Object	readCompiled(java.lang.Object target, java.lang.Object expression) Reads a property of the target, defined by the (previously compiled) expression.
void	setApplicationSpecification(IApplicationSpecification applicationSpecification)
void	setContributions(java.util.List contributions)
void	setExpressionCache(ExpressionCache expressionCache)
void	write(java.lang.Object target, java.lang.String expression, java.lang.Object value) Updates a property of the target, defined by the expression.
void	writeCompiled(java.lang.Object target, java.lang.Object expression, java.lang.Object value) Updates a property of the target, defined by the (previously compiled) expression.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionEvaluatorImpl

public ExpressionEvaluatorImpl()

Method Detail

setApplicationSpecification

public void setApplicationSpecification(IApplicationSpecification applicationSpecification)

initializeService

public void initializeService()

read

public java.lang.Object read(java.lang.Object target,
                    java.lang.String expression)

Description copied from interface: ExpressionEvaluator

Reads a property of the target, defined by the expression.

Specified by:

read in interface ExpressionEvaluator

readCompiled

public java.lang.Object readCompiled(java.lang.Object target,
                            java.lang.Object expression)

Description copied from interface: ExpressionEvaluator

Reads a property of the target, defined by the (previously compiled) expression.

Specified by:

readCompiled in interface ExpressionEvaluator

write

public void write(java.lang.Object target,
         java.lang.String expression,
         java.lang.Object value)

Description copied from interface: ExpressionEvaluator

Updates a property of the target, defined by the expression.

Specified by:

write in interface ExpressionEvaluator

writeCompiled

public void writeCompiled(java.lang.Object target,
                 java.lang.Object expression,
                 java.lang.Object value)

Description copied from interface: ExpressionEvaluator

Updates a property of the target, defined by the (previously compiled) expression.

Specified by:

writeCompiled in interface ExpressionEvaluator

isConstant

public boolean isConstant(java.lang.String expression)

Description copied from interface: ExpressionEvaluator

Returns true if the expression evaluates to a constant or other literal value.

Specified by:

isConstant in interface ExpressionEvaluator

setExpressionCache

public void setExpressionCache(ExpressionCache expressionCache)

setContributions

public void setContributions(java.util.List contributions)