Package com.sun.tools.rngom.nc

Class NameClass

java.lang.Object

com.sun.tools.rngom.nc.NameClass

All Implemented Interfaces:

ParsedNameClass, Serializable

Direct Known Subclasses:

AnyNameExceptNameClass, ChoiceNameClass, NsNameClass, NsNameExceptNameClass, SimpleNameClass

public abstract class NameClass
extends Object
implements ParsedNameClass, Serializable

Name class is a set of QNames.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static NameClass	ANY	Sigleton instance that represents "anyName".
static NameClass	NULL	Sigleton instance that accepts no name.

Constructor Summary

Constructors

Constructor	Description
NameClass()

Method Summary

Modifier and Type	Method	Description
abstract <V> V	accept(NameClassVisitor<V> visitor)	Visitor pattern support.
abstract boolean	contains(QName name)	Returns true if the given QName is a valid name for this QName.
abstract int	containsSpecificity(QName name)
boolean	hasOverlapWith(NameClass nc2)	Returns true if the intersection between this name class and the specified name class is non-empty.
abstract boolean	isOpen()	Returns true if the name class accepts infinite number of QNames.
Set<QName>	listNames()	If the name class is closed (IOW !isOpen()), return the set of names in this name class.

Methods inherited from class java.lang.Object

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

Field Detail

ANY

public static final NameClass ANY

Sigleton instance that represents "anyName".

NULL

public static final NameClass NULL

Sigleton instance that accepts no name.

This instance is useful when doing boolean arithmetic over name classes (such as computing an inverse of a given name class, etc), even though it can never appear in a RELAX NG surface syntax.

Internally, this instance is also used for:

1. Used to recover from errors during parsing.
2. Mark element patterns with <notAllowed/> content model.

Constructor Detail

NameClass

public NameClass()

Method Detail

contains

public abstract boolean contains(QName name)

Returns true if the given QName is a valid name for this QName.

containsSpecificity

public abstract int containsSpecificity(QName name)

accept

public abstract <V> V accept(NameClassVisitor<V> visitor)

Visitor pattern support.

isOpen

public abstract boolean isOpen()

Returns true if the name class accepts infinite number of QNames.

Intuitively, this method returns true if the name class is some sort of wildcard.

listNames

public Set<QName> listNames()

If the name class is closed (IOW !isOpen()), return the set of names in this name class. Otherwise the behavior is undefined.

hasOverlapWith

public final boolean hasOverlapWith(NameClass nc2)

Returns true if the intersection between this name class and the specified name class is non-empty.