public class MapELResolver
extends ELResolver 

Since:

2.1

• Field Summary

  • Fields inherited from class javax.el.ELResolver

    RESOLVABLE_AT_DESIGN_TIME, TYPE

• Constructor Summary

  Constructors

  Constructor and Description
  MapELResolver () New read/write resolver.
  MapELResolver (boolean readOnly) New resolver with the specified behavior.

• Method Summary

  Methods

  Modifier and Type	Method and Description
  java.lang.Class	getCommonPropertyType (ELContext context, java.lang.Object base) If the base is a map, returns Object.class.
  java.util.Iterator<java.beans.FeatureDescriptor>	getFeatureDescriptors (ELContext context, java.lang.Object base) Returns metadata about the variables or properties within the specified base object.
  java.lang.Class	getType (ELContext context, java.lang.Object base, java.lang.Object property) Returns the type of values in this map.
  java.lang.Object	getValue (ELContext context, java.lang.Object base, java.lang.Object property) Returns the value at the given index.
  boolean	isReadOnly (ELContext context, java.lang.Object base, java.lang.Object property) Indicates whether the value at the specified index is read-only.
  void	setValue (ELContext context, java.lang.Object base, java.lang.Object property, java.lang.Object value) Sets the value at the given index.

  • Methods inherited from class java.lang.Object

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

• Constructor Detail

  • MapELResolver

    public MapELResolver()

    New read/write resolver.

  • MapELResolver

    public MapELResolver(boolean readOnly)

    New resolver with the specified behavior.

    Parameters:

    readOnly - true only if the resolver is to be read-only

• Method Detail

  • getValue

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

    Returns the value at the given index.

    Specified by:

    getValue in class ELResolver

    Parameters:

    property - the map index

    context - the evaluation context

    base - the target of the operation

    Throws:

    java.lang.NullPointerException

    PropertyNotFoundException

    ELException

  • getType

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

    Returns the type of values in this map.

    Specified by:

    getType in class ELResolver

    Parameters:

    property - the map index

    context - the evaluation context

    base - the target of the operation

    Throws:

    java.lang.NullPointerException

    PropertyNotFoundException

    ELException

  • setValue

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

    Sets the value at the given index.

    Specified by:

    setValue in class ELResolver

    Parameters:

    property - the map index

    context - the evaluation context

    base - the target of the operation

    value - the new value of the property

    Throws:

    PropertyNotWritableException - if the property is read-only

    java.lang.NullPointerException

    PropertyNotFoundException

    ELException

  • isReadOnly

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

    Indicates whether the value at the specified index is read-only.

    Specified by:

    isReadOnly in class ELResolver

    Parameters:

    property - the map index

    context - the evaluation context

    base - the target of the operation

    Throws:

    java.lang.NullPointerException

    PropertyNotFoundException

    ELException

  • getFeatureDescriptors

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

    Description copied from class: ELResolver
    Returns metadata about the variables or properties within the specified base object.

    Specified by:

    getFeatureDescriptors in class ELResolver

    Parameters:

    context - the evaluation context

    base - the target of the operation

  • getCommonPropertyType

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

    If the base is a map, returns Object.class. Otherwise returns null.

    Specified by:

    getCommonPropertyType in class ELResolver

    Parameters:

    context - the evaluation context

    base - the target of the operation