de.odysseus.el.util

Class RootPropertyResolver

java.lang.Object

javax.el.ELResolver

de.odysseus.el.util.RootPropertyResolver

public class RootPropertyResolver
extends ELResolver

Simple root property resolver implementation. This resolver handles root properties (i.e. base == null && property instanceof String), which are stored in a map. The properties can be accessed via the getProperty(String), setProperty(String, Object), isProperty(String) and properties() methods.

Author:

Christoph Beck

Field Summary

Fields inherited from class javax.el.ELResolver

RESOLVABLE_AT_DESIGN_TIME, TYPE

Constructor Summary

Constructors

Constructor and Description
RootPropertyResolver() Create a read/write root property resolver
RootPropertyResolver(boolean readOnly) Create a root property resolver

Method Summary

Methods

Modifier and Type	Method and Description
Class<?>	getCommonPropertyType(ELContext context, Object base)
Iterator<FeatureDescriptor>	getFeatureDescriptors(ELContext context, Object base)
Object	getProperty(String property) Get property value
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	isProperty(String property) Test property
boolean	isReadOnly(ELContext context, Object base, Object property)
Iterable<String>	properties() Get properties
void	setProperty(String property, Object value) Set property value
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

RootPropertyResolver

public RootPropertyResolver()

Create a read/write root property resolver

RootPropertyResolver

public RootPropertyResolver(boolean readOnly)

Create a root property resolver

Parameters:

readOnly -

Method Detail

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)
              throws PropertyNotWritableException

Specified by:

setValue in class ELResolver

Throws:

PropertyNotWritableException

invoke

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

Overrides:

invoke in class ELResolver

getProperty

public Object getProperty(String property)

Get property value

Parameters:

property - property name

Returns:

value associated with the given property

setProperty

public void setProperty(String property,
               Object value)

Set property value

Parameters:

property - property name

value - property value

isProperty

public boolean isProperty(String property)

Test property

Parameters:

property - property name

Returns:

true if the given property is associated with a value

properties

public Iterable<String> properties()

Get properties

Returns:

all property names (in no particular order)