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java.lang.Objectorg.apache.commons.jxpath.ri.model.NodePointer
org.apache.commons.jxpath.ri.model.beans.PropertyOwnerPointer
org.apache.commons.jxpath.ri.model.beans.NullPointer
public class NullPointer
Pointer whose value is null
.
Field Summary |
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Fields inherited from class org.apache.commons.jxpath.ri.model.NodePointer |
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index, locale, parent, UNKNOWN_NAMESPACE, WHOLE_COLLECTION |
Constructor Summary | |
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NullPointer(Locale locale,
String id)
Create a new NullPointer. |
|
NullPointer(NodePointer parent,
QName name)
Used for the root node. |
|
NullPointer(QName name,
Locale locale)
Create a new NullPointer. |
Method Summary | |
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String |
asPath()
Returns an XPath that maps to this Pointer. |
NodePointer |
createChild(JXPathContext context,
QName name,
int index)
Called by a child pointer when it needs to create a parent object for a non-existent collection element. |
NodePointer |
createChild(JXPathContext context,
QName name,
int index,
Object value)
Called by a child pointer if that child needs to assign the value supplied in the createPath(context, value) call to a non-existent node. |
NodePointer |
createPath(JXPathContext context)
Called by a child pointer when it needs to create a parent object. |
NodePointer |
createPath(JXPathContext context,
Object value)
Called directly by JXPathContext. |
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 |
isActual()
An actual pointer points to an existing part of an object graph, even if it is null. |
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 |
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clone, compareTo, createAttribute, escape, getAbstractFactory, getDefaultNamespaceURI, getImmediateParentPointer, getImmediateValuePointer, getIndex, getLocale, getNamespaceResolver, getNamespaceURI, getNamespaceURI, getNode, getNodeSetByKey, getNodeValue, getParent, getPointerByID, getPointerByKey, getRootNode, getValue, getValuePointer, isAttribute, isContainer, isDefaultNamespace, isLanguage, isNode, isRoot, namespaceIterator, namespacePointer, newChildNodePointer, newNodePointer, printPointerChain, setAttribute, setNamespaceResolver, testNode, toString |
Methods inherited from class java.lang.Object |
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finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public NullPointer(QName name, Locale locale)
name
- node namelocale
- Localepublic NullPointer(NodePointer parent, QName name)
parent
- parent pointername
- node namepublic NullPointer(Locale locale, String id)
locale
- Localeid
- StringMethod Detail |
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public QName getName()
NodePointer
getName
in class PropertyOwnerPointer
public Object getBaseValue()
NodePointer
getBaseValue
in class NodePointer
public boolean isCollection()
NodePointer
true
if the value of the pointer is an array or
a Collection.
isCollection
in class NodePointer
public boolean isLeaf()
NodePointer
isLeaf
in class NodePointer
public boolean isActual()
NodePointer
isActual
in class NodePointer
public PropertyPointer getPropertyPointer()
PropertyOwnerPointer
getPropertyPointer
in class PropertyOwnerPointer
public NodePointer createPath(JXPathContext context, Object value)
NodePointer
createPath
in class NodePointer
context
- the owning JXPathContextvalue
- the new value to set
public NodePointer createPath(JXPathContext context)
NodePointer
createPath
in class NodePointer
context
- the owning JXPathContext
public NodePointer createChild(JXPathContext context, QName name, int index)
NodePointer
createChild
in class NodePointer
context
- the owning JXPathCOntextname
- the QName at which a child should be createdindex
- child index.
public NodePointer createChild(JXPathContext context, QName name, int index, Object value)
NodePointer
createChild
in class NodePointer
context
- the owning JXPathCOntextname
- the QName at which a child should be createdindex
- child index.value
- node value to set
public int hashCode()
hashCode
in class Object
public boolean equals(Object object)
equals
in class Object
public String asPath()
NodePointer
asPath
in interface Pointer
asPath
in class NodePointer
public int getLength()
NodePointer
getLength
in class NodePointer
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