net.sf.saxon.pattern
Class AnyNodeTest

java.lang.Object
  net.sf.saxon.pattern.NodeTest
      net.sf.saxon.pattern.AnyNodeTest

All Implemented Interfaces:

ItemType, java.io.Serializable

public final class AnyNodeTest

extends NodeTest

NodeTest is an interface that enables a test of whether a node has a particular name and type. An AnyNodeTest matches any node.

See Also:

Serialized Form

Constructor Summary

AnyNodeTest()

Method Summary

double	getDefaultPriority() Determine the default priority of this node test when used on its own as a Pattern
static AnyNodeTest	getInstance() Get an instance of AnyNodeTest
int	getNodeKindMask() Get a mask indicating which kinds of nodes this NodeTest can match.
ItemType	getSuperType() Get the type from which this item type is derived by restriction.
int	hashCode() Returns a hash code value for the object.
boolean	matches(int nodeType, int fingerprint, int annotation) Test whether this node test is satisfied by a given node
boolean	matches(NodeInfo node) Test whether this node test is satisfied by a given node.
boolean	matchesItem(Item item) Test whether a given item conforms to this type
java.lang.String	toString()

Methods inherited from class net.sf.saxon.pattern.NodeTest

getAtomizedItemType, getContentType, getFingerprint, getPrimitiveItemType, getPrimitiveType, getRequiredNodeNames, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

AnyNodeTest

public AnyNodeTest()

Method Detail

getInstance

public static AnyNodeTest getInstance()

Get an instance of AnyNodeTest

matchesItem

public boolean matchesItem(Item item)

Test whether a given item conforms to this type

Specified by:

matchesItem in interface ItemType

Overrides:

matchesItem in class NodeTest

Parameters:

item - The item to be tested

Returns:

true if the item is an instance of this type; false otherwise

getSuperType

public ItemType getSuperType()

Description copied from class: NodeTest

Get the type from which this item type is derived by restriction. This is the supertype in the XPath type heirarchy, as distinct from the Schema base type: this means that the supertype of xs:boolean is xdt:anyAtomicType, whose supertype is item() (rather than xs:anySimpleType).

In fact the concept of "supertype" is not really well-defined, because the types form a lattice rather than a hierarchy. The only real requirement on this function is that it returns a type that strictly subsumes this type, ideally as narrowly as possible.

Specified by:

getSuperType in interface ItemType

Overrides:

getSuperType in class NodeTest

Returns:

the supertype, or null if this type is item()

matches

public final boolean matches(int nodeType,
                             int fingerprint,
                             int annotation)

Test whether this node test is satisfied by a given node

Specified by:

matches in class NodeTest

Parameters:

nodeType - The type of node to be matched

fingerprint - identifies the expanded name of the node to be matched

annotation - The actual content type of the node

matches

public boolean matches(NodeInfo node)

Test whether this node test is satisfied by a given node. This alternative method is used in the case of nodes where calculating the fingerprint is expensive, for example DOM or JDOM nodes.

Specified by:

matches in class NodeTest

Parameters:

node - the node to be matched

getDefaultPriority

public final double getDefaultPriority()

Determine the default priority of this node test when used on its own as a Pattern

Specified by:

getDefaultPriority in class NodeTest

getNodeKindMask

public int getNodeKindMask()

Get a mask indicating which kinds of nodes this NodeTest can match. This is a combination of bits: 1<

Specified by:

getNodeKindMask in class NodeTest

toString

public java.lang.String toString()

hashCode

public int hashCode()

Returns a hash code value for the object.