Package org.zkoss.bind.xel.zel

Class PathELResolver

java.lang.Object

org.zkoss.zel.ELResolver

org.zkoss.bind.xel.zel.PathELResolver

public class PathELResolver
extends ELResolver

Handle dot series path when evaluating expression.

Since:

6.0.0

Author:

henrichen

Field Summary

Fields inherited from class org.zkoss.zel.ELResolver

RESOLVABLE_AT_DESIGN_TIME, TYPE

Constructor Summary

Constructors

Constructor	Description
PathELResolver()

Method Summary

Modifier and Type	Method	Description
java.lang.Class<?>	getCommonPropertyType(ELContext context, java.lang.Object base)
java.util.Iterator<java.beans.FeatureDescriptor>	getFeatureDescriptors(ELContext context, java.lang.Object base)
java.lang.Class<?>	getType(ELContext ctx, java.lang.Object base, java.lang.Object property)
java.lang.Object	getValue(ELContext ctx, java.lang.Object base, java.lang.Object property)
boolean	isReadOnly(ELContext context, java.lang.Object base, java.lang.Object property)
void	setValue(ELContext ctx, java.lang.Object base, java.lang.Object property, java.lang.Object value)

Methods inherited from class org.zkoss.zel.ELResolver

convertToType, invoke

Methods inherited from class java.lang.Object

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

Constructor Detail

PathELResolver

public PathELResolver()

Method Detail

getValue

public java.lang.Object getValue(ELContext ctx,
                                 java.lang.Object base,
                                 java.lang.Object property)
                          throws java.lang.NullPointerException,
                                 PropertyNotFoundException,
                                 ELException

Specified by:

getValue in class ELResolver

Parameters:

ctx - 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

Throws:

java.lang.NullPointerException - If the supplied context is null

PropertyNotFoundException - If the base/property combination provided to the resolver is one that the resolver can handle but no match was found or a match was found but was not readable

ELException - Wraps any exception throw whilst resolving the property

getType

public java.lang.Class<?> getType(ELContext ctx,
                                  java.lang.Object base,
                                  java.lang.Object property)
                           throws java.lang.NullPointerException,
                                  PropertyNotFoundException,
                                  ELException

Specified by:

getType in class ELResolver

Parameters:

ctx - 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 type of the provided property

Throws:

java.lang.NullPointerException - If the supplied context is null

PropertyNotFoundException - If the base/property combination provided to the resolver is one that the resolver can handle but no match was found or a match was found but was not readable

ELException - Wraps any exception throw whilst resolving the property

setValue

public void setValue(ELContext ctx,
                     java.lang.Object base,
                     java.lang.Object property,
                     java.lang.Object value)
              throws java.lang.NullPointerException,
                     PropertyNotFoundException,
                     PropertyNotWritableException,
                     ELException

Specified by:

setValue in class ELResolver

Parameters:

ctx - 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

Throws:

java.lang.NullPointerException - If the supplied context is null

PropertyNotFoundException - If the base/property combination provided to the resolver is one that the resolver can handle but no match was found

PropertyNotWritableException - If the base/property combination provided to the resolver is one that the resolver can handle but the property was not writable

ELException - Wraps any exception throw whilst resolving the property

isReadOnly

public boolean isReadOnly(ELContext context,
                          java.lang.Object base,
                          java.lang.Object property)
                   throws java.lang.NullPointerException,
                          PropertyNotFoundException,
                          ELException

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

Throws:

java.lang.NullPointerException - If the supplied context is null

PropertyNotFoundException - If the base/property combination provided to the resolver is one that the resolver can handle but no match was found

ELException - Wraps any exception throw whilst resolving the property

getFeatureDescriptors

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

Specified by:

getFeatureDescriptors in class ELResolver

getCommonPropertyType

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

Specified by:

getCommonPropertyType in class ELResolver