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org.apache.commons.jxpath.ri.model.dynabeans
Class DynaBeanPointer  

java.lang.Object
  org.apache.commons.jxpath.ri.model.NodePointer
      org.apache.commons.jxpath.ri.model.beans.PropertyOwnerPointer
          org.apache.commons.jxpath.ri.model.dynabeans.DynaBeanPointer

All Implemented Interfaces:

java.lang.Cloneable, java.lang.Comparable, org.apache.commons.jxpath.Pointer, java.io.Serializable

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public class DynaBeanPointer

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

A Pointer that points to a DynaBean.

Version:

$Revision: 1.6 $ $Date: 2004/02/29 14:17:40 $

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Field Summary
private  org.apache.commons.beanutils.DynaBean	dynaBean
private  org.apache.commons.jxpath.ri.QName	name

 

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

 

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

index, locale, parent, UNKNOWN_NAMESPACE, WHOLE_COLLECTION

 

Constructor Summary

DynaBeanPointer(org.apache.commons.jxpath.ri.model.NodePointer parent, org.apache.commons.jxpath.ri.QName name, org.apache.commons.beanutils.DynaBean dynaBean)

DynaBeanPointer(org.apache.commons.jxpath.ri.QName name, org.apache.commons.beanutils.DynaBean dynaBean, java.util.Locale locale)

 

Method Summary
java.lang.String	asPath()           If there's a parent - parent's path, otherwise "/".
boolean	equals(java.lang.Object object)           Determine whether this Object is semantically equal to another Object.
java.lang.Object	getBaseValue()           Returns the bean itself
java.lang.Object	getImmediateNode()           Returns the object the pointer points to; does not convert it to a "canonical" type.
int	getLength()           Returns 1.
org.apache.commons.jxpath.ri.QName	getName()           Returns the name of this node.
org.apache.commons.jxpath.ri.model.beans.PropertyPointer	getPropertyPointer()
int	hashCode()           Get a value that represents this Object, as uniquely as possible within the confines of an int.
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, isDynamicPropertyDeclarationSupported, remove, setIndex, setValue

 

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

clone, compareTo, createAttribute, createChild, createChild, createPath, createPath, getDefaultNamespaceURI, getImmediateParentPointer, getImmediateValuePointer, getIndex, getLocale, getNamespaceResolver, getNamespaceURI, getNamespaceURI, getNode, 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 Detail

name

private org.apache.commons.jxpath.ri.QName name

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dynaBean

private org.apache.commons.beanutils.DynaBean dynaBean

Constructor Detail

DynaBeanPointer

public DynaBeanPointer(org.apache.commons.jxpath.ri.QName name,
                       org.apache.commons.beanutils.DynaBean dynaBean,
                       java.util.Locale locale)

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DynaBeanPointer

public DynaBeanPointer(org.apache.commons.jxpath.ri.model.NodePointer parent,
                       org.apache.commons.jxpath.ri.QName name,
                       org.apache.commons.beanutils.DynaBean dynaBean)

Method Detail

getPropertyPointer

public org.apache.commons.jxpath.ri.model.beans.PropertyPointer getPropertyPointer()

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getName

public org.apache.commons.jxpath.ri.QName getName()

Description copied from class: org.apache.commons.jxpath.ri.model.NodePointer

Returns the name of this node. Can be null.

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getBaseValue

public java.lang.Object getBaseValue()

Returns the bean itself

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getImmediateNode

public java.lang.Object getImmediateNode()

Description copied from class: org.apache.commons.jxpath.ri.model.NodePointer

Returns the object the pointer points to; does not convert it to a "canonical" type.

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isCollection

public boolean isCollection()

Description copied from class: org.apache.commons.jxpath.ri.model.NodePointer

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

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getLength

public int getLength()

Returns 1.

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isLeaf

public boolean isLeaf()

Description copied from class: org.apache.commons.jxpath.ri.model.NodePointer

If true, this node does not have children

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hashCode

public int hashCode()

Description copied from class: java.lang.Object

Get a value that represents this Object, as uniquely as possible within the confines of an int.

There are some requirements on this method which subclasses must follow:

• Semantic equality implies identical hashcodes. In other words, if a.equals(b) is true, then a.hashCode() == b.hashCode() must be as well. However, the reverse is not necessarily true, and two objects may have the same hashcode without being equal.
• It must be consistent. Whichever value o.hashCode() returns on the first invocation must be the value returned on all later invocations as long as the object exists. Notice, however, that the result of hashCode may change between separate executions of a Virtual Machine, because it is not invoked on the same object.

Notice that since hashCode is used in java.util.Hashtable and other hashing classes, a poor implementation will degrade the performance of hashing (so don't blindly implement it as returning a constant!). Also, if calculating the hash is time-consuming, a class may consider caching the results.

The default implementation returns System.identityHashCode(this)

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equals

public boolean equals(java.lang.Object object)

Description copied from class: java.lang.Object

Determine whether this Object is semantically equal to another Object.

There are some fairly strict requirements on this method which subclasses must follow:

• It must be transitive. If a.equals(b) and b.equals(c), then a.equals(c) must be true as well.
• It must be symmetric. a.equals(b) and b.equals(a) must have the same value.
• It must be reflexive. a.equals(a) must always be true.
• It must be consistent. Whichever value a.equals(b) returns on the first invocation must be the value returned on all later invocations.
• a.equals(null) must be false.
• It must be consistent with hashCode(). That is, a.equals(b) must imply a.hashCode() == b.hashCode(). The reverse is not true; two objects that are not equal may have the same hashcode, but that has the potential to harm hashing performance.

This is typically overridden to throw a java.lang.ClassCastException if the argument is not comparable to the class performing the comparison, but that is not a requirement. It is legal for a.equals(b) to be true even though a.getClass() != b.getClass(). Also, it is typical to never cause a java.lang.NullPointerException.

In general, the Collections API (java.util) use the equals method rather than the == operator to compare objects. However, java.util.IdentityHashMap is an exception to this rule, for its own good reasons.

The default implementation returns this == o.

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asPath

public java.lang.String asPath()

If there's a parent - parent's path, otherwise "/".

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> commons >> jxpath >> ri >> model >> [ dynabeans overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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