Package net.sf.saxon.pattern

Class MultipleNodeKindTest

java.lang.Object

net.sf.saxon.pattern.NodeTest

net.sf.saxon.pattern.MultipleNodeKindTest

All Implemented Interfaces:

NodePredicate, ItemType, ItemTypeWithSequenceTypeCache

public final class MultipleNodeKindTest
extends NodeTest

An MultipleNodeKindTest is a nodetest that matches nodes belonging to any subset of possible node kinds, for example element and document nodes, or attribute and namespace nodes

Field Summary

Fields

Modifier and Type	Field	Description
static final MultipleNodeKindTest	CHILD_NODE
static final MultipleNodeKindTest	DOC_ELEM_ATTR
static final MultipleNodeKindTest	LEAF
static final MultipleNodeKindTest	PARENT_NODE

Constructor Summary

Constructors

Constructor	Description
MultipleNodeKindTest(UType u)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
double	getDefaultPriority()	Determine the default priority to use if this pattern appears as a match pattern for a template with no explicit priority attribute.
IntPredicateProxy	getMatcher(NodeVectorTree tree)	Get a matching function that can be used to test whether numbered nodes in a TinyTree or DominoTree satisfy the node test.
UType	getUType()	Get the corresponding UType.
int	hashCode()	Returns a hash code value for the object.
boolean	matches(int nodeKind, NodeName name, SchemaType annotation)	Test whether this node test is satisfied by a given node.
boolean	test(NodeInfo node)	Test whether this node test is satisfied by a given node.
String	toExportString()	Return a string representation of this ItemType suitable for use in stylesheet export files.
String	toShortString()
String	toString()

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

copy, explainMismatch, getAtomizedItemType, getBasicAlphaCode, getContentType, getFingerprint, getGenre, getMatchingNodeName, getPrimitiveItemType, getPrimitiveType, getRequiredNodeNames, isAtomicType, isAtomizable, isNillable, isPlainType, matches, one, oneOrMore, zeroOrMore, zeroOrOne

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.saxon.type.ItemType

getFullAlphaCode, getNormalizedDefaultPriority

Field Details

PARENT_NODE

public static final MultipleNodeKindTest PARENT_NODE

DOC_ELEM_ATTR

public static final MultipleNodeKindTest DOC_ELEM_ATTR

LEAF

public static final MultipleNodeKindTest LEAF

CHILD_NODE

public static final MultipleNodeKindTest CHILD_NODE

Constructor Details

MultipleNodeKindTest

public MultipleNodeKindTest(UType u)

Method Details

getUType

public UType getUType()

Get the corresponding UType. A UType is a union of primitive item types.

Returns:

the smallest UType that subsumes this item type

matches

public boolean matches(int nodeKind,
 NodeName name,
 SchemaType annotation)

Test whether this node test is satisfied by a given node. This method is only fully supported for a subset of NodeTests, because it doesn't provide all the information needed to evaluate all node tests. In particular (a) it can't be used to evaluate a node test of the form element(N,T) or schema-element(E) where it is necessary to know whether the node is nilled, and (b) it can't be used to evaluate a node test of the form document-node(element(X)). This in practice means that it is used (a) to evaluate the simple node tests found in the XPath 1.0 subset used in XML Schema, and (b) to evaluate node tests where the node kind is known to be an attribute.

Specified by:

matches in class NodeTest

Parameters:

nodeKind - The kind of node to be matched

name - identifies the expanded name of the node to be matched. The value should be null for a node with no name.

annotation - The actual content type of the node

Returns:

true if the node matches this node test

getMatcher

public IntPredicateProxy getMatcher(NodeVectorTree tree)

Description copied from class: NodeTest

Get a matching function that can be used to test whether numbered nodes in a TinyTree or DominoTree satisfy the node test. (Calling this matcher must give the same result as calling matchesNode(tree.getNode(nodeNr)), but it may well be faster).

Overrides:

getMatcher in class NodeTest

Parameters:

tree - the tree against which the returned function will operate

Returns:

an IntPredicate; the matches() method of this predicate takes a node number as input, and returns true if and only if the node identified by this node number matches the node test.

test

public boolean test(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:

test in interface NodePredicate

Overrides:

test in class NodeTest

Parameters:

node - the node to be matched

Returns:

true if the node test is satisfied by the supplied node, false otherwise

getDefaultPriority

public double getDefaultPriority()

Determine the default priority to use if this pattern appears as a match pattern for a template with no explicit priority attribute.

Specified by:

getDefaultPriority in interface ItemType

Specified by:

getDefaultPriority in class NodeTest

Returns:

the default priority for the pattern

toString

public String toString()

Overrides:

toString in class Object

toShortString

public String toShortString()

Overrides:

toShortString in class NodeTest

toExportString

public String toExportString()

Description copied from interface: ItemType

Return a string representation of this ItemType suitable for use in stylesheet export files. This differs from the result of toString() in that it will not contain any references to anonymous types. Note that it may also use the Saxon extended syntax for union types and tuple types. The default implementation returns the result of calling toString().

Returns:

the string representation as an instance of the XPath SequenceType construct

hashCode

public int hashCode()

Returns a hash code value for the object.

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object