org.ontoware.rdf2go.model.node
Class Variable

java.lang.Object
  org.ontoware.rdf2go.model.node.Variable

All Implemented Interfaces:

NodeOrVariable, ResourceOrVariable, UriOrVariable

public class Variable
extends java.lang.Object
implements ResourceOrVariable, UriOrVariable, NodeOrVariable

This variable models wildcards in triple pattern queres. Only onw instance of this class if allows: ANY. This allows type-safe methods.

Author:

voelkel

Field Summary

static Variable

ANY

Method Summary

BlankNode	asBlankNode()
DatatypeLiteral	asDatatypeLiteral()
LanguageTagLiteral	asLanguageTagLiteral()
Literal	asLiteral()
Resource	asResource()
URI	asURI()
int	compareTo(Node other)
boolean	equals(java.lang.Object other) There is only one Variable, so it's equals to itself.
int	hashCode()
java.lang.String	toSPARQL()

Methods inherited from class java.lang.Object

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

Field Detail

ANY

public static final Variable ANY

Method Detail

asResource

public Resource asResource()
                    throws java.lang.ClassCastException

Throws:

java.lang.ClassCastException

asLiteral

public Literal asLiteral()
                  throws java.lang.ClassCastException

Throws:

java.lang.ClassCastException

asDatatypeLiteral

public DatatypeLiteral asDatatypeLiteral()
                                  throws java.lang.ClassCastException

Throws:

java.lang.ClassCastException

asLanguageTagLiteral

public LanguageTagLiteral asLanguageTagLiteral()
                                        throws java.lang.ClassCastException

Throws:

java.lang.ClassCastException

asURI

public URI asURI()
          throws java.lang.ClassCastException

Throws:

java.lang.ClassCastException

asBlankNode

public BlankNode asBlankNode()
                      throws java.lang.ClassCastException

Throws:

java.lang.ClassCastException

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object other)

There is only one Variable, so it's equals to itself.

Overrides:

equals in class java.lang.Object

compareTo

public int compareTo(Node other)

toSPARQL

public java.lang.String toSPARQL()