net.sourceforge.stripes.validation.expression

Class Jsp21ExpressionExecutor.StripesELResolver

java.lang.Object

javax.el.ELResolver

net.sourceforge.stripes.validation.expression.Jsp21ExpressionExecutor.StripesELResolver

Enclosing class:

Jsp21ExpressionExecutor

protected static class Jsp21ExpressionExecutor.StripesELResolver
extends javax.el.ELResolver

Implementation of the EL interface to resolve variables. Resolves variables by checking two special names ("this" and "actionBean") and then falling back to retrieving property values from the ActionBean passed in to the constructor.

Since:

Stripes 1.5

Author:

Tim Fennell

Field Summary

Fields inherited from class javax.el.ELResolver

RESOLVABLE_AT_DESIGN_TIME, TYPE

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Class<?>	getCommonPropertyType(javax.el.ELContext elContext, java.lang.Object o) Always returns Object.class.
java.util.Iterator<java.beans.FeatureDescriptor>	getFeatureDescriptors(javax.el.ELContext elContext, java.lang.Object o) Always returns null.
java.lang.Class<?>	getType(javax.el.ELContext ctx, java.lang.Object base, java.lang.Object prop) Does nothing.
java.lang.Object	getValue(javax.el.ELContext ctx, java.lang.Object base, java.lang.Object prop) Attempts to resolve the value as described in the class level javadoc.
boolean	isReadOnly(javax.el.ELContext elContext, java.lang.Object o, java.lang.Object o1) Always returns true.
void	setValue(javax.el.ELContext elContext, java.lang.Object o, java.lang.Object o1, java.lang.Object o2) Does nothing.

Methods inherited from class java.lang.Object

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

Method Detail

getValue

public java.lang.Object getValue(javax.el.ELContext ctx,
                        java.lang.Object base,
                        java.lang.Object prop)

Attempts to resolve the value as described in the class level javadoc.

Specified by:

getValue in class javax.el.ELResolver

Parameters:

ctx - the ELContext for the expression

base - the object on which the property resides (null == root property)

prop - the name of the property being looked for

Returns:

the value of the property or null if one can't be found

getType

public java.lang.Class<?> getType(javax.el.ELContext ctx,
                         java.lang.Object base,
                         java.lang.Object prop)

Does nothing. Always returns Object.class.

Specified by:

getType in class javax.el.ELResolver

setValue

public void setValue(javax.el.ELContext elContext,
            java.lang.Object o,
            java.lang.Object o1,
            java.lang.Object o2)
              throws javax.el.PropertyNotWritableException

Does nothing. Always throws PropertyNotWritableException.

Specified by:

setValue in class javax.el.ELResolver

Throws:

javax.el.PropertyNotWritableException

isReadOnly

public boolean isReadOnly(javax.el.ELContext elContext,
                 java.lang.Object o,
                 java.lang.Object o1)

Always returns true.

Specified by:

isReadOnly in class javax.el.ELResolver

getFeatureDescriptors

public java.util.Iterator<java.beans.FeatureDescriptor> getFeatureDescriptors(javax.el.ELContext elContext,
                                                                     java.lang.Object o)

Always returns null.

Specified by:

getFeatureDescriptors in class javax.el.ELResolver

getCommonPropertyType

public java.lang.Class<?> getCommonPropertyType(javax.el.ELContext elContext,
                                       java.lang.Object o)

Always returns Object.class.

Specified by:

getCommonPropertyType in class javax.el.ELResolver