Package org.apache.commons.jxpath.ri.model.beans

Class BeanPointer

java.lang.Object

org.apache.commons.jxpath.ri.model.NodePointer

org.apache.commons.jxpath.ri.model.beans.PropertyOwnerPointer

org.apache.commons.jxpath.ri.model.beans.BeanPointer

All Implemented Interfaces:

Serializable, Cloneable, Comparable, Pointer

public class BeanPointer
extends PropertyOwnerPointer

A Pointer that points to a JavaBean or a collection. It is either the first element of a path or a pointer for a property value. Typically there is a BeanPropertyPointer between two BeanPointers in the chain.

Version:

$Revision: 670727 $ $Date: 2008-06-23 15:10:38 -0500 (Mon, 23 Jun 2008) $

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private Object	bean
private JXPathBeanInfo	beanInfo
private QName	name
private static final long	serialVersionUID

Fields inherited from class org.apache.commons.jxpath.ri.model.NodePointer

index, locale, parent, UNKNOWN_NAMESPACE, WHOLE_COLLECTION

Constructor Summary

Constructors

Constructor	Description
BeanPointer(NodePointer parent, QName name, Object bean, JXPathBeanInfo beanInfo)	Create a new BeanPointer.
BeanPointer(QName name, Object bean, JXPathBeanInfo beanInfo, Locale locale)	Create a new BeanPointer.

Method Summary

Modifier and Type	Method	Description
String	asPath()	Returns an XPath that maps to this Pointer.
boolean	equals(Object object)
Object	getBaseValue()	Returns the value represented by the pointer before indexing.
int	getLength()	If the pointer represents a collection (or collection element), returns the length of the collection.
QName	getName()	Returns the name of this node.
PropertyPointer	getPropertyPointer()	Get a PropertyPointer for this PropertyOwnerPointer.
int	hashCode()
boolean	isCollection()	Returns true if the value of the pointer is an array or a Collection.
boolean	isLeaf()	If true, this node does not have children

Methods inherited from class org.apache.commons.jxpath.ri.model.beans.PropertyOwnerPointer

attributeIterator, childIterator, compareChildNodePointers, createNodeIterator, getImmediateNode, isDynamicPropertyDeclarationSupported, isValidProperty, remove, setIndex, setValue

Methods inherited from class org.apache.commons.jxpath.ri.model.NodePointer

clone, compareTo, createAttribute, createChild, createChild, createPath, createPath, escape, getAbstractFactory, getDefaultNamespaceURI, getImmediateParentPointer, getImmediateValuePointer, getIndex, getLocale, getNamespaceResolver, getNamespaceURI, getNamespaceURI, getNode, getNodeSetByKey, getNodeValue, getParent, getPointerByID, getPointerByKey, getRootNode, getValue, getValuePointer, isActual, isAttribute, isContainer, isDefaultNamespace, isLanguage, isNode, isRoot, namespaceIterator, namespacePointer, newChildNodePointer, newNodePointer, printPointerChain, setAttribute, setNamespaceResolver, testNode, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

name

private QName name

bean

private Object bean

beanInfo

private JXPathBeanInfo beanInfo

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

Constructor Details

BeanPointer

public BeanPointer(QName name,
 Object bean,
 JXPathBeanInfo beanInfo,
 Locale locale)

Create a new BeanPointer.

Parameters:

name - is the name given to the first node

bean - pointed

beanInfo - JXPathBeanInfo

locale - Locale

BeanPointer

public BeanPointer(NodePointer parent,
 QName name,
 Object bean,
 JXPathBeanInfo beanInfo)

Create a new BeanPointer.

Parameters:

parent - pointer

name - is the name given to the first node

bean - pointed

beanInfo - JXPathBeanInfo

Method Details

getPropertyPointer

public PropertyPointer getPropertyPointer()

Description copied from class: PropertyOwnerPointer

Get a PropertyPointer for this PropertyOwnerPointer.

Specified by:

getPropertyPointer in class PropertyOwnerPointer

Returns:

PropertyPointer

getName

public QName getName()

Description copied from class: NodePointer

Returns the name of this node. Can be null.

Specified by:

getName in class PropertyOwnerPointer

Returns:

QName

getBaseValue

public Object getBaseValue()

Description copied from class: NodePointer

Returns the value represented by the pointer before indexing. So, if the node represents an element of a collection, this method returns the collection itself.

Specified by:

getBaseValue in class NodePointer

Returns:

Object value

isCollection

public boolean isCollection()

Returns true if the value of the pointer is an array or a Collection.

Specified by:

isCollection in class NodePointer

Returns:

false

getLength

public int getLength()

If the pointer represents a collection (or collection element), returns the length of the collection. Otherwise returns 1 (even if the value is null).

Specified by:

getLength in class NodePointer

Returns:

1

isLeaf

public boolean isLeaf()

Description copied from class: NodePointer

If true, this node does not have children

Specified by:

isLeaf in class NodePointer

Returns:

boolean

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object object)

Overrides:

equals in class Object

asPath

public String asPath()

Returns an XPath that maps to this Pointer. If the pointer has a parent, then parent's path. If the bean is null, "null()". If the bean is a primitive value, the value itself. Otherwise - an empty string.

Specified by:

asPath in interface Pointer

Overrides:

asPath in class NodePointer

Returns:

String xpath expression