org.jrdf.query.relation.type
Class PredicateNodeType

java.lang.Object
  org.jrdf.query.relation.type.PredicateNodeType

All Implemented Interfaces:

Serializable, NodeType, PositionalNodeType

public final class PredicateNodeType
extends Object
implements PositionalNodeType

An predicate node type.

Version:

$Revision: 1842 $

Author:

Andrew Newman

See Also:

Serialized Form

Field Summary

static NodeType

PREDICATE_TYPE PredicateNodeType constant.

Constructor Summary

PredicateNodeType()

Method Summary

void	accept(NodeTypeVisitor visitor) Accept a call from a NodeTypeVisitor.
Set<? extends NodeType>	composedOf() Returns the sub-types of a composite type.
boolean	equals(Object obj)
String	getName() Returns the name of the type.
int	hashCode()
PositionalNodeType	upgrade(PositionalNodeType newNodeType) Given a new node type what is the new compound node type.

Methods inherited from class java.lang.Object

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

Field Detail

PREDICATE_TYPE

public static final NodeType PREDICATE_TYPE

PredicateNodeType constant.

Constructor Detail

PredicateNodeType

public PredicateNodeType()

Method Detail

getName

public String getName()

Description copied from interface: NodeType

Returns the name of the type.

Specified by:

getName in interface NodeType

Returns:

the name of the type.

composedOf

public Set<? extends NodeType> composedOf()

Description copied from interface: NodeType

Returns the sub-types of a composite type.

Specified by:

composedOf in interface NodeType

Returns:

the sub-types of a composite type.

accept

public void accept(NodeTypeVisitor visitor)

Description copied from interface: NodeType

Accept a call from a NodeTypeVisitor.

Specified by:

accept in interface NodeType

Parameters:

visitor - the object doing the visiting.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

upgrade

public PositionalNodeType upgrade(PositionalNodeType newNodeType)

Description copied from interface: PositionalNodeType

Given a new node type what is the new compound node type. For example, if this was a SubjectNodeType and it was given a parameter of ObjectNodeType it should return SubjectObjectNodeType.

Specified by:

upgrade in interface PositionalNodeType

Parameters:

newNodeType - the new node type to upgrade the current node type to.

Returns:

the new instance of a compound node type.