org.zkoss.bind.impl
Class BindEvaluatorXImpl

java.lang.Object
  extended by org.zkoss.zk.xel.impl.SimpleEvaluator
      extended by 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


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