org.zkoss.bind.impl
Class BindEvaluatorXImpl

java.lang.Object
  org.zkoss.zk.xel.impl.SimpleEvaluator
      org.zkoss.bind.impl.BindEvaluatorXImpl

All Implemented Interfaces:

java.io.Serializable, BindEvaluatorX, Evaluator

Direct Known Subclasses:

BindEvaluatorXImplEx

public class BindEvaluatorXImpl
extends SimpleEvaluator
implements BindEvaluatorX

A simple implementation of BindEvaluatorX.

Since:

6.0.0

Author:

henrichen

See Also:

Serialized Form

Constructor Summary

BindEvaluatorXImpl(FunctionMapper mapper, java.lang.Class<? extends ExpressionFactory> expfcls)

Method Summary

java.lang.Class<?>	getType(BindContext ctx, Component comp, ExpressionX expression) Returns the result type of the specified expression.
java.lang.Object	getValue(BindContext ctx, Component comp, ExpressionX expression) Sets the specified value to the property resolved from the specified expression.
ValueReference	getValueReference(BindContext ctx, Component comp, ExpressionX expression) Returns the result reference of the specified expression.
boolean	isReadOnly(BindContext ctx, Component comp, ExpressionX expression) Returns whether the specified expression a read only expression.
protected XelContext	newXelContext(BindContext ctx, Component comp)
ExpressionX	parseExpressionX(BindContext ctx, java.lang.String expression, java.lang.Class<?> expectedType) Prepares the expressionX.
void	setValue(BindContext ctx, Component comp, ExpressionX expression, java.lang.Object value) Sets the specified value to the property resolved from the specified expression.

Methods inherited from class org.zkoss.zk.xel.impl.SimpleEvaluator

evaluate, evaluate, getExpressionFactory, getExpressionFactoryClass, getFunctionMapper, getVariableResolver, newXelContext, parseExpression

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.zkoss.zk.xel.Evaluator

evaluate, evaluate, parseExpression

Constructor Detail

BindEvaluatorXImpl

public BindEvaluatorXImpl(FunctionMapper mapper,
                          java.lang.Class<? extends ExpressionFactory> expfcls)

Method Detail

getValue

public java.lang.Object getValue(BindContext ctx,
                                 Component comp,
                                 ExpressionX expression)
                          throws XelException

Description copied from interface: BindEvaluatorX

Sets the specified value to the property resolved from the specified expression.

Specified by:

getValue in interface BindEvaluatorX

Parameters:

ctx - the scoped bind context of this operation

comp - the scoped component context of this operation

expression - the expression that will resolve a property

Throws:

XelException

setValue

public void setValue(BindContext ctx,
                     Component comp,
                     ExpressionX expression,
                     java.lang.Object value)
              throws XelException

Description copied from interface: BindEvaluatorX

Sets the specified value to the property resolved from the specified expression.

Specified by:

setValue in interface BindEvaluatorX

Parameters:

ctx - the scoped bind context of this operation

comp - the scoped component context of this operation

expression - the expression that will resolve a property

value - the value to be set into the resolved property

Throws:

XelException

parseExpressionX

public ExpressionX parseExpressionX(BindContext ctx,
                                    java.lang.String expression,
                                    java.lang.Class<?> expectedType)
                             throws XelException

Description copied from interface: BindEvaluatorX

Prepares the expressionX.

Specified by:

parseExpressionX in interface BindEvaluatorX

expression - the expression to be prepared for being evaluated later.

expectedType - the expected type of the result of the evaluation

Throws:

XelException

getType

public java.lang.Class<?> getType(BindContext ctx,
                                  Component comp,
                                  ExpressionX expression)
                           throws XelException

Description copied from interface: BindEvaluatorX

Returns the result type of the specified expression.

Specified by:

getType in interface BindEvaluatorX

Parameters:

ctx - BindContext

comp - evaluation context

expression - the expression that will resolve a property

Throws:

XelException

getValueReference

public ValueReference getValueReference(BindContext ctx,
                                        Component comp,
                                        ExpressionX expression)
                                 throws XelException

Description copied from interface: BindEvaluatorX

Returns the result reference of the specified expression.

Specified by:

getValueReference in interface BindEvaluatorX

Parameters:

ctx - BindContext

comp - evaluation context

expression - the expression that will resolve a property

Throws:

XelException

newXelContext

protected XelContext newXelContext(BindContext ctx,
                                   Component comp)

isReadOnly

public boolean isReadOnly(BindContext ctx,
                          Component comp,
                          ExpressionX expression)
                   throws XelException

Description copied from interface: BindEvaluatorX

Returns whether the specified expression a read only expression.

Specified by:

isReadOnly in interface BindEvaluatorX

Parameters:

ctx - BindContext

comp - evaluation context

expression - the expression that will resolve a property

Returns:

whether the specified expression a read only expression.

Throws:

XelException