org.apache.el.stream

Class StreamELResolverImpl

java.lang.Object

javax.el.ELResolver

org.apache.el.stream.StreamELResolverImpl

public class StreamELResolverImpl
extends ELResolver

Field Summary

Fields inherited from class javax.el.ELResolver

RESOLVABLE_AT_DESIGN_TIME, TYPE

Constructor Summary

Constructors

Constructor and Description
StreamELResolverImpl()

Method Summary

Modifier and Type	Method and Description
java.lang.Class<?>	getCommonPropertyType(ELContext context, java.lang.Object base) Obtain the most common type that is acceptable for the given base object.
java.util.Iterator<java.beans.FeatureDescriptor>	getFeatureDescriptors(ELContext context, java.lang.Object base) Obtain the feature descriptors for the resolvable properties of the given object.
java.lang.Class<?>	getType(ELContext context, java.lang.Object base, java.lang.Object property) Obtain the most generally acceptable type that may be used to set the given property on the given object using the given context.
java.lang.Object	getValue(ELContext context, java.lang.Object base, java.lang.Object property) Obtain the value of the given property on the given object using the given context.
java.lang.Object	invoke(ELContext context, java.lang.Object base, java.lang.Object method, java.lang.Class<?>[] paramTypes, java.lang.Object[] params) Invokes a method on the the given object.
boolean	isReadOnly(ELContext context, java.lang.Object base, java.lang.Object property) Determine if the given property on the given object is read-only using the given context.
void	setValue(ELContext context, java.lang.Object base, java.lang.Object property, java.lang.Object value) Set the value of the given property on the given object using the given context.

Methods inherited from class javax.el.ELResolver

convertToType

Methods inherited from class java.lang.Object

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

Constructor Detail

StreamELResolverImpl

public StreamELResolverImpl()

Method Detail

getValue

public java.lang.Object getValue(ELContext context,
                                 java.lang.Object base,
                                 java.lang.Object property)

Description copied from class: javax.el.ELResolver

Obtain the value of the given property on the given object using the given context.

Specified by:

getValue in class ELResolver

Parameters:

context - The EL context for this evaluation

base - The base object on which the property is to be found

property - The property whose value is to be returned

Returns:

the value of the provided property

getType

public java.lang.Class<?> getType(ELContext context,
                                  java.lang.Object base,
                                  java.lang.Object property)

Description copied from class: javax.el.ELResolver

Obtain the most generally acceptable type that may be used to set the given property on the given object using the given context.

Specified by:

getType in class ELResolver

Parameters:

context - The EL context for this evaluation

base - The base object on which the property is to be found

property - The property whose type is to be returned

Returns:

the most general type that maybe used to set the provided property or null if the resolver is read-only.

setValue

public void setValue(ELContext context,
                     java.lang.Object base,
                     java.lang.Object property,
                     java.lang.Object value)

Description copied from class: javax.el.ELResolver

Set the value of the given property on the given object using the given context.

Specified by:

setValue in class ELResolver

Parameters:

context - The EL context for this evaluation

base - The base object on which the property is to be found

property - The property whose value is to be set

value - The value to set the property to

isReadOnly

public boolean isReadOnly(ELContext context,
                          java.lang.Object base,
                          java.lang.Object property)

Description copied from class: javax.el.ELResolver

Determine if the given property on the given object is read-only using the given context.

Specified by:

isReadOnly in class ELResolver

Parameters:

context - The EL context for this evaluation

base - The base object on which the property is to be found

property - The property to be checked for read only status

Returns:

true if the identified property is read only, otherwise false

getFeatureDescriptors

public java.util.Iterator<java.beans.FeatureDescriptor> getFeatureDescriptors(ELContext context,
                                                                              java.lang.Object base)

Description copied from class: javax.el.ELResolver

Obtain the feature descriptors for the resolvable properties of the given object.

Specified by:

getFeatureDescriptors in class ELResolver

Parameters:

context - The context in which the examination takes place

base - The object to examine

Returns:

An iterator, possibly empty, of feature descriptors of the given object

getCommonPropertyType

public java.lang.Class<?> getCommonPropertyType(ELContext context,
                                                java.lang.Object base)

Description copied from class: javax.el.ELResolver

Obtain the most common type that is acceptable for the given base object.

Specified by:

getCommonPropertyType in class ELResolver

Parameters:

context - The context in which the examination takes place

base - The object to examine

Returns:

{code null} if the most common type cannot be determine, otherwise the most common type

invoke

public java.lang.Object invoke(ELContext context,
                               java.lang.Object base,
                               java.lang.Object method,
                               java.lang.Class<?>[] paramTypes,
                               java.lang.Object[] params)

Description copied from class: javax.el.ELResolver

Invokes a method on the the given object.

Overrides:

invoke in class ELResolver

Parameters:

context - The EL context for this evaluation

base - The base object on which the method is to be found

method - The method to invoke

paramTypes - The types of the parameters of the method to invoke

params - The parameters with which to invoke the method

Returns:

This default implementation always returns null