de.odysseus.el.util

Class SimpleResolver

java.lang.Object

javax.el.ELResolver

de.odysseus.el.util.SimpleResolver

public class SimpleResolver
extends ELResolver

Simple resolver implementation. This resolver handles root properties (top-level identifiers). Resolving "real" properties (base != null) is delegated to a resolver specified at construction time.

Author:

Christoph Beck

Field Summary

Fields inherited from class javax.el.ELResolver

RESOLVABLE_AT_DESIGN_TIME, TYPE

Constructor Summary

Constructors

Constructor and Description
SimpleResolver() Create a read/write resolver capable of resolving top-level identifiers, array values, list values, map values, resource values and bean properties.
SimpleResolver(boolean readOnly) Create a resolver capable of resolving top-level identifiers, array values, list values, map values, resource values and bean properties.
SimpleResolver(ELResolver resolver) Create a read/write resolver capable of resolving top-level identifiers.
SimpleResolver(ELResolver resolver, boolean readOnly) Create a resolver capable of resolving top-level identifiers.

Method Summary

Methods

Modifier and Type	Method and Description
Class<?>	getCommonPropertyType(ELContext context, Object base)
Iterator<FeatureDescriptor>	getFeatureDescriptors(ELContext context, Object base)
RootPropertyResolver	getRootPropertyResolver() Answer our root resolver which provides an API to access top-level properties.
Class<?>	getType(ELContext context, Object base, Object property)
Object	getValue(ELContext context, Object base, Object property)
Object	invoke(ELContext context, Object base, Object method, Class<?>[] paramTypes, Object[] params)
boolean	isReadOnly(ELContext context, Object base, Object property)
void	setValue(ELContext context, Object base, Object property, Object value)

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleResolver

public SimpleResolver(ELResolver resolver,
              boolean readOnly)

Create a resolver capable of resolving top-level identifiers. Everything else is passed to the supplied delegate.

SimpleResolver

public SimpleResolver(ELResolver resolver)

Create a read/write resolver capable of resolving top-level identifiers. Everything else is passed to the supplied delegate.

SimpleResolver

public SimpleResolver(boolean readOnly)

Create a resolver capable of resolving top-level identifiers, array values, list values, map values, resource values and bean properties.

SimpleResolver

public SimpleResolver()

Create a read/write resolver capable of resolving top-level identifiers, array values, list values, map values, resource values and bean properties.

Method Detail

getRootPropertyResolver

public RootPropertyResolver getRootPropertyResolver()

Answer our root resolver which provides an API to access top-level properties.

Returns:

root property resolver

getCommonPropertyType

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

Specified by:

getCommonPropertyType in class ELResolver

getFeatureDescriptors

public Iterator<FeatureDescriptor> getFeatureDescriptors(ELContext context,
                                                Object base)

Specified by:

getFeatureDescriptors in class ELResolver

getType

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

Specified by:

getType in class ELResolver

getValue

public Object getValue(ELContext context,
              Object base,
              Object property)

Specified by:

getValue in class ELResolver

isReadOnly

public boolean isReadOnly(ELContext context,
                 Object base,
                 Object property)

Specified by:

isReadOnly in class ELResolver

setValue

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

Specified by:

setValue in class ELResolver

invoke

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

Overrides:

invoke in class ELResolver