org.springframework.binding.expression.el

Class DefaultELResolver

java.lang.Object

javax.el.ELResolver

javax.el.CompositeELResolver

org.springframework.binding.expression.el.DefaultELResolver

public class DefaultELResolver
extends javax.el.CompositeELResolver

A generic ELResolver to be used as a default when no other ELResolvers have been configured by the client application. This implementation will resolve the first part of the expression to the pre-configured base object, and will then delegate through the chain of standard resolvers for the rest of the expression. Note - Requires Java 5 or higher due to the use of generics in the API's basic resolvers.

Author:

Jeremy Grelle

Field Summary

Fields inherited from class javax.el.ELResolver

RESOLVABLE_AT_DESIGN_TIME, TYPE

Constructor Summary

Constructors

Constructor and Description
DefaultELResolver(List customResolvers) Creates a new default EL resolver for resolving properties of the root object.
DefaultELResolver(Object target, List customResolvers) Creates a new default EL resolver for resolving properties of the root object.

Method Summary

Methods

Modifier and Type	Method and Description
Object	getTarget()
Class	getType(javax.el.ELContext context, Object base, Object property)
Object	getValue(javax.el.ELContext context, Object base, Object property)
void	setValue(javax.el.ELContext context, Object base, Object property, Object val)

Methods inherited from class javax.el.CompositeELResolver

add, getCommonPropertyType, getFeatureDescriptors, invoke, isReadOnly

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultELResolver

public DefaultELResolver(List customResolvers)

Creates a new default EL resolver for resolving properties of the root object. Assumes a null target and expect that the base object has already been resolved by the time this resolver runs.

Parameters:

customResolvers - the custom resolvers to apply before this resolver

DefaultELResolver

public DefaultELResolver(Object target,
                 List customResolvers)

Creates a new default EL resolver for resolving properties of the root object.

Parameters:

target - the target, or "root", object of the expression

customResolvers - the custom resolvers to apply before this resolver

Method Detail

getTarget

public Object getTarget()

getType

public Class getType(javax.el.ELContext context,
            Object base,
            Object property)

Overrides:

getType in class javax.el.CompositeELResolver

getValue

public Object getValue(javax.el.ELContext context,
              Object base,
              Object property)

Overrides:

getValue in class javax.el.CompositeELResolver

setValue

public void setValue(javax.el.ELContext context,
            Object base,
            Object property,
            Object val)

Overrides:

setValue in class javax.el.CompositeELResolver