com.hp.hpl.mesa.rdf.jena.common
Class StatementImpl

java.lang.Object
  |
  +--com.hp.hpl.mesa.rdf.jena.common.ResourceImpl
        |
        +--com.hp.hpl.mesa.rdf.jena.common.StatementImpl

All Implemented Interfaces:

RDFNode, Resource, ResourceI, Statement

public class StatementImpl

extends ResourceImpl

implements Statement

An implementation of Statement.

Version:

$Name: $ $Revision: 1.8 $ $Date: 2002/01/05 11:00:57 $

Author:

bwm

Constructor Summary

StatementImpl(Resource subject, Property predicate, RDFNode object)

StatementImpl(Resource subject, Property predicate, RDFNode object, AnonId id, Model model)
Creates new StatementImpl

StatementImpl(Resource subject, Property predicate, RDFNode object, Model model)
Creates new StatementImpl

StatementImpl(Resource subject, Property predicate, RDFNode object, java.lang.String URI, Model model)
Creates new StatementImpl

Method Summary

boolean	equals(java.lang.Object o) determine whether two statements are equal.
Alt	getAlt() Return the object of the statement.
Bag	getBag() Return the object of the statement.
boolean	getBoolean() Return the object of the statement.
byte	getByte() Return the object of the statement.
char	getChar() Return the object of the statement.
double	getDouble() Return the object of the statement.
float	getFloat() Return the object of the statement.
int	getInt() Return the object of the statement.
java.lang.String	getLanguage() Return the language of the object of the statement
Literal	getLiteral() Return the object of the statement.
long	getLong() Return the object of the statement.
RDFNode	getObject() An accessor funtion to return the object of the statement.
java.lang.Object	getObject(ObjectF f) Return the object of the statement.
Property	getPredicate() An accessor function to return the predicate of the statement.
Statement	getProperty(Property p) Get a property of the object of the statement.
Resource	getResource() Return the object of the statement.
Resource	getResource(ResourceF f) Return the object of the statement.
Seq	getSeq() Return the object of the statement.
short	getShort() Return the object of the statement.
Statement	getStatementProperty(Property p) Return a property of this statement.
java.lang.String	getString() Return the object of the statement.
Resource	getSubject() An accessor method to return the subject of the statements.
boolean	getWellFormed() Return whether the Literal object is well formed XML as would result from parsing a property element with parseType="Literal"
int	hashCode()
boolean	isReified() Determine if this statement is the subject of any statements its associated model.
Resource	port(Model m) For internal use only
Statement	remove() Remove this statement from its associated model.
Resource	removeProperties() Delete all the properties for this resource from the associated model.
Statement	set(boolean o) Set the object of the statement.
Statement	set(char o) Set the object of the statement.
Statement	set(double o) Set the object of the statement.
Statement	set(float o) Set the object of the statement.
Statement	set(long o) Set the object of the statement.
Statement	set(java.lang.Object o) Set the object of the statement.
Statement	set(RDFNode o) Set the object of the statement.
Statement	set(java.lang.String o) Set the object of the statement.
Statement	set(java.lang.String o, boolean wellFormed) Set the object of the statement.
Statement	set(java.lang.String o, java.lang.String l) Set the object of the statement.
Statement	set(java.lang.String o, java.lang.String l, boolean wellFormed) Set the object of the statement.
java.lang.String	toString() Return a string representation of the resource.

Methods inherited from class com.hp.hpl.mesa.rdf.jena.common.ResourceImpl

abort, addProperty, addProperty, addProperty, addProperty, addProperty, addProperty, addProperty, addProperty, addProperty, begin, commit, getEmbeddedResource, getId, getLocalName, getModel, getNameSpace, getURI, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, isAnon, listProperties, listProperties

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.hp.hpl.mesa.rdf.jena.model.Resource

abort, addProperty, addProperty, addProperty, addProperty, addProperty, addProperty, addProperty, addProperty, addProperty, begin, commit, getId, getLocalName, getModel, getNameSpace, getURI, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, isAnon, listProperties, listProperties

Constructor Detail

StatementImpl

public StatementImpl(Resource subject,
                     Property predicate,
                     RDFNode object)

StatementImpl

public StatementImpl(Resource subject,
                     Property predicate,
                     RDFNode object,
                     Model model)
              throws RDFException

Creates new StatementImpl

StatementImpl

public StatementImpl(Resource subject,
                     Property predicate,
                     RDFNode object,
                     AnonId id,
                     Model model)
              throws RDFException

Creates new StatementImpl

StatementImpl

public StatementImpl(Resource subject,
                     Property predicate,
                     RDFNode object,
                     java.lang.String URI,
                     Model model)
              throws RDFException

Creates new StatementImpl

Method Detail

hashCode

public int hashCode()

Overrides:

hashCode in class ResourceImpl

getSubject

public Resource getSubject()

Description copied from interface: Statement

An accessor method to return the subject of the statements.

Specified by:

getSubject in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

The subject of the statement.

getPredicate

public Property getPredicate()

Description copied from interface: Statement

An accessor function to return the predicate of the statement.

Specified by:

getPredicate in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

The predicate of the statement.

getObject

public RDFNode getObject()

Description copied from interface: Statement

An accessor funtion to return the object of the statement.

Specified by:

getObject in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

Return the object of the statement.

getProperty

public Statement getProperty(Property p)
                      throws RDFException

Description copied from interface: Statement

Get a property of the object of the statement.

There is an unfortunate ambiguity here. GetProperty would normally treat the statement as a resource, and return a property about this statement. This is not what is wanted in most cases, so getProperty on a statement is defined to call getProperty on its object. If a property of the statement itself is required, getStatementProperty should be used.

If the object of the statement is not a resource, an exception is thrown.

Specified by:

getProperty in interface Statement

Overrides:

getProperty in class ResourceImpl

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Parameters:

p - the property sought

Returns:

a statement representing an instance of the required property

Throws:

RDFException - Generic RDF Exception

getStatementProperty

public Statement getStatementProperty(Property p)
                               throws RDFException

Description copied from interface: Statement

Return a property of this statement.

The model associated with this statement is searched for a statement with this statement as subject and the specified property as predicate. If such a statement is found it is return. If more than one exists in the model, then it is undefined which is returned. If no such statement exists, an exception is thrown.

Specified by:

getStatementProperty in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Parameters:

p - the property sought

Returns:

a statement representing an instance of the specified property.

Throws:

RDFException - Generic RDF exception

getResource

public Resource getResource()
                     throws RDFException

Description copied from interface: Statement

Return the object of the statement.

An exception will be thrown if the object is not a resource.

Specified by:

getResource in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

The Resource which is the object of the statement.

Throws:

RDFException - Generuc RDF exception.

getLiteral

public Literal getLiteral()
                   throws RDFException

Description copied from interface: Statement

Return the object of the statement.

An exception will be thrown if the object is not a Literal.

Specified by:

getLiteral in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

The Literal which is the object of the statement.

Throws:

RDFException - Generuc RDF exception.

getBoolean

public boolean getBoolean()
                   throws RDFException

Description copied from interface: Statement

Return the object of the statement.

An exception will be thrown if the object is not a Literal.

Specified by:

getBoolean in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

The object of the statement interpreted as a value of the the specified type.

Throws:

RDFException - Generuc RDF exception.

getByte

public byte getByte()
             throws RDFException

Description copied from interface: Statement

Return the object of the statement.

An exception will be thrown if the object is not a Literal.

Specified by:

getByte in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

The object of the statement interpreted as a value of the the specified type.

Throws:

RDFException - Generuc RDF exception.

getShort

public short getShort()
               throws RDFException

Description copied from interface: Statement

Return the object of the statement.

An exception will be thrown if the object is not a Literal.

Specified by:

getShort in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

The object of the statement interpreted as a value of the the specified type.

Throws:

RDFException - Generuc RDF exception.

getInt

public int getInt()
           throws RDFException

Description copied from interface: Statement

Return the object of the statement.

An exception will be thrown if the object is not a Literal.

Specified by:

getInt in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

The object of the statement interpreted as a value of the the specified type.

Throws:

RDFException - Generuc RDF exception.

getLong

public long getLong()
             throws RDFException

Description copied from interface: Statement

Return the object of the statement.

An exception will be thrown iof the object is not a Literal.

Specified by:

getLong in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

The object of the statement interpreted as a value of the the specified type.

Throws:

RDFException - Generuc RDF exception.

getChar

public char getChar()
             throws RDFException

Description copied from interface: Statement

Return the object of the statement.

An exception will be thrown if the object is not a Literal.

Specified by:

getChar in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

The object of the statement interpreted as a value of the the specified type.

Throws:

RDFException - Generuc RDF exception.

getFloat

public float getFloat()
               throws RDFException

Description copied from interface: Statement

Return the object of the statement.

An exception will be thrown if the object is not a Literal.

Specified by:

getFloat in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

The object of the statement interpreted as a value of the the specified type.

Throws:

RDFException - Generuc RDF exception.

getDouble

public double getDouble()
                 throws RDFException

Description copied from interface: Statement

Return the object of the statement.

An exception will be thrown if the object is not a Literal.

Specified by:

getDouble in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

The object of the statement interpreted as a value of the the specified type.

Throws:

RDFException - Generuc RDF exception.

getString

public java.lang.String getString()
                           throws RDFException

Description copied from interface: Statement

Return the object of the statement.

An exception will be thrown if the object is not a Literal.

Specified by:

getString in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

The object of the statement interpreted as a value of the the specified type.

Throws:

RDFException - Generuc RDF exception.

getResource

public Resource getResource(ResourceF f)
                     throws RDFException

Description copied from interface: Statement

Return the object of the statement.

An exception will be thrown if the object is not a Resource.

Specified by:

getResource in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

The object of the statement.

Throws:

RDFException - Generuc RDF exception.

getObject

public java.lang.Object getObject(ObjectF f)
                           throws RDFException

Description copied from interface: Statement

Return the object of the statement.

An exception will be thrown if the object is not a Literal.

Specified by:

getObject in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Parameters:

f - A factory used to create the returned object.

Returns:

The object of the statement.

Throws:

RDFException - Generuc RDF exception.

getBag

public Bag getBag()
           throws RDFException

Description copied from interface: Statement

Return the object of the statement.

An exception will be thrown if the object is not a Resource.

Specified by:

getBag in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

The object of the statement interpreted as a value of the the specified type.

Throws:

RDFException - Generuc RDF exception.

getAlt

public Alt getAlt()
           throws RDFException

Description copied from interface: Statement

Return the object of the statement.

An exception will be thrown if the object is not a Resource.

Specified by:

getAlt in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

The object of the statement interpreted as a value of the the specified type.

Throws:

RDFException - Generuc RDF exception.

getSeq

public Seq getSeq()
           throws RDFException

Description copied from interface: Statement

Return the object of the statement.

An exception will be thrown if the object is not a Resource.

Specified by:

getSeq in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

The object of the statement interpreted as a value of the the specified type.

Throws:

RDFException - Generuc RDF exception.

getLanguage

public java.lang.String getLanguage()
                             throws RDFException

Description copied from interface: Statement

Return the language of the object of the statement

An exception will be thrown if the object is not a Literal.

Specified by:

getLanguage in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

the language of the object of the statement

Throws:

RDFException - Generuc RDF exception.

getWellFormed

public boolean getWellFormed()
                      throws RDFException

Description copied from interface: Statement

Return whether the Literal object is well formed XML as would result from parsing a property element with parseType="Literal"

An exception will be thrown if the object is not a Literal.

Specified by:

getWellFormed in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

true if the Literal object is well formed

Throws:

RDFException - Generuc RDF exception.

set

public Statement set(boolean o)
              throws RDFException

Description copied from interface: Statement

Set the object of the statement.

Specified by:

set in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Parameters:

o - The new value to be set.

Returns:

this object to enable cascading of method calls.

Throws:

RDFException - Generic RDF exception.

set

public Statement set(long o)
              throws RDFException

Description copied from interface: Statement

Set the object of the statement.

The statement with the old value is removed from the model and a new statement with the new value added.

Specified by:

set in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Parameters:

o - The value to be set.

Returns:

this object to enable cascading of method calls.

Throws:

RDFException - Generic RDF exception.

set

public Statement set(char o)
              throws RDFException

Description copied from interface: Statement

Set the object of the statement.

The statement with the old value is removed from the model and a new statement with the new value added.

Specified by:

set in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Parameters:

o - The value to be set.

Returns:

this object to enable cascading of method calls.

Throws:

RDFException - Generic RDF exception.

set

public Statement set(float o)
              throws RDFException

Description copied from interface: Statement

Set the object of the statement.

The statement with the old value is removed from the model and a new statement with the new value added.

Specified by:

set in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Parameters:

o - The value to be set.

Returns:

this object to enable cascading of method calls.

Throws:

RDFException - Generic RDF exception.

set

public Statement set(double o)
              throws RDFException

Description copied from interface: Statement

Set the object of the statement.

The statement with the old value is removed from the model and a new statement with the new value added.

Specified by:

set in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Parameters:

o - The value to be set.

Returns:

this object to enable cascading of method calls.

Throws:

RDFException - Generic RDF exception.

set

public Statement set(java.lang.String o)
              throws RDFException

Description copied from interface: Statement

Set the object of the statement.

The statement with the old value is removed from the model and a new statement with the new value added.

Specified by:

set in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Parameters:

o - The value to be set.

Returns:

this object to enable cascading of method calls.

Throws:

RDFException - Generic RDF exception.

set

public Statement set(java.lang.String o,
                     boolean wellFormed)
              throws RDFException

Description copied from interface: Statement

Set the object of the statement.

The statement with the old value is removed from the model and a new statement with the new value added.

Specified by:

set in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Parameters:

o - The value to be set.

wellFormed - true if o is well formed XML

Returns:

this object to enable cascading of method calls.

Throws:

RDFException - Generic RDF exception.

set

public Statement set(java.lang.String o,
                     java.lang.String l)
              throws RDFException

Description copied from interface: Statement

Set the object of the statement.

The statement with the old value is removed from the model and a new statement with the new value added.

Specified by:

set in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Parameters:

o - The value to be set.

l - the language of the String

Returns:

this object to enable cascading of method calls.

Throws:

RDFException - Generic RDF exception.

set

public Statement set(java.lang.String o,
                     java.lang.String l,
                     boolean wellFormed)
              throws RDFException

Description copied from interface: Statement

Set the object of the statement.

The statement with the old value is removed from the model and a new statement with the new value added.

Specified by:

set in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Parameters:

o - The value to be set.

l - the language of the String

Returns:

this object to enable cascading of method calls.

Throws:

RDFException - Generic RDF exception.

set

public Statement set(RDFNode o)
              throws RDFException

Description copied from interface: Statement

Set the object of the statement.

The statement with the old value is removed from the model and a new statement with the new value added.

Specified by:

set in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Parameters:

o - The value to be set

wellFormed - true if o is well formed XML

Returns:

this object to enable cascading of method calls.

Throws:

RDFException - Generic RDF exception.

set

public Statement set(java.lang.Object o)
              throws RDFException

Description copied from interface: Statement

Set the object of the statement.

The statement with the old value is removed from the model and a new statement with the new value added.

The Object o is converted to a string representation by calling its toString() method.

Specified by:

set in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Parameters:

o - The value to be set.

Returns:

this object to enable cascading of method calls.

Throws:

RDFException - Generic RDF exception.

toString

public java.lang.String toString()

Description copied from interface: Resource

Return a string representation of the resource. Returns the URI of the resource unless the resource is anonymous in which case it returns the id of the resource enclosed in square brackets.

Specified by:

toString in interface Resource

Overrides:

toString in class ResourceImpl

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Resource

Returns:

Return a string representation of the resource. if it is anonymous.

equals

public boolean equals(java.lang.Object o)

Description copied from interface: Statement

determine whether two statements are equal.

Two statements are considered to be equal if they have the the same subject, predicate and object. A statement can only be equal to another statement object.

Specified by:

equals in interface Statement

Overrides:

equals in class ResourceImpl

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Parameters:

o - the object to be compared

Returns:

true if and only if the equality condition is met.

removeProperties

public Resource removeProperties()
                          throws RDFException

Description copied from interface: Resource

Delete all the properties for this resource from the associated model.

Specified by:

removeProperties in interface Resource

Overrides:

removeProperties in class ResourceImpl

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Resource

Returns:

This resource to permit cascading.

Throws:

RDFException - Generic RDF exception.

remove

public Statement remove()
                 throws RDFException

Description copied from interface: Statement

Remove this statement from its associated model.

The statement with the same subject, predicate and object as this statement will be removed from the model associated with this statement.

Specified by:

remove in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Returns:

this statement.

Throws:

RDFException - Generic RDF exception.

isReified

public boolean isReified()
                  throws RDFException

Description copied from interface: Statement

Determine if this statement is the subject of any statements its associated model.

Specified by:

isReified in interface Statement

Following copied from interface: com.hp.hpl.mesa.rdf.jena.model.Statement

Parameters:

s - The statement tested.

Returns:

true if the statement s is the subject of a statement in the model, false otherwise

Throws:

RDFException - Generic RDF Exception

port

public Resource port(Model m)
              throws RDFException

Description copied from interface: ResourceI

For internal use only

Overrides:

port in class ResourceImpl