net.sf.saxon.pattern

Class NamespaceTest

public final class NamespaceTest extends NodeTest

NodeTest is an interface that enables a test of whether a node has a particular name and type. A NamespaceTest matches the node type and the namespace URI.

Author: Michael H. Kay

Constructor Summary
NamespaceTest(NamePool pool, int nodeKind, String uri)
Method Summary
booleanequals(Object other)
Indicates whether some other object is "equal to" this one.
doublegetDefaultPriority()
Determine the default priority of this node test when used on its own as a Pattern
intgetNodeKindMask()
Get a mask indicating which kinds of nodes this NodeTest can match.
intgetPrimitiveType()
Determine the types of nodes to which this pattern applies.
ItemTypegetSuperType(TypeHierarchy th)
Get the type from which this item type is derived by restriction.
inthashCode()
Returns a hash code value for the object.
booleanmatches(int nodeType, int fingerprint, int annotation)
Test whether this node test is satisfied by a given node
booleanmatches(TinyTree tree, int nodeNr)
Test whether this node test is satisfied by a given node on a TinyTree.
booleanmatches(NodeInfo node)
Test whether this node test is satisfied by a given node.
StringtoString()

Constructor Detail

NamespaceTest

public NamespaceTest(NamePool pool, int nodeKind, String uri)

Method Detail

equals

public boolean equals(Object other)
Indicates whether some other object is "equal to" this one.

getDefaultPriority

public final double getDefaultPriority()
Determine the default priority of this node test when used on its own as a Pattern

getNodeKindMask

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

getPrimitiveType

public int getPrimitiveType()
Determine the types of nodes to which this pattern applies. Used for optimisation. For patterns that match nodes of several types, return Type.NODE

Returns: the type of node matched by this pattern. e.g. Type.ELEMENT or Type.TEXT

getSuperType

public ItemType getSuperType(TypeHierarchy th)
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.

Parameters: th

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

hashCode

public int hashCode()
Returns a hash code value for the object.

matches

public boolean matches(int nodeType, int fingerprint, int annotation)
Test whether this node test is satisfied by a given node

Parameters: nodeType The type of node to be matched fingerprint identifies the expanded name of the node to be matched

matches

public boolean matches(TinyTree tree, int nodeNr)
Test whether this node test is satisfied by a given node on a TinyTree. The node must be a document, element, text, comment, or processing instruction node. This method is provided so that when navigating a TinyTree a node can be rejected without actually instantiating a NodeInfo object.

Parameters: tree the TinyTree containing the node nodeNr the number of the node within the TinyTree

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.

Parameters: node the node to be matched

toString

public String toString()