se.kmr.scam.editor.util
Class ValueObjectImpl

java.lang.Object
  se.kmr.scam.editor.util.ValueObjectImpl

All Implemented Interfaces:

ValueObject

public class ValueObjectImpl

extends Object

implements ValueObject

Wrapper for a fact in a value model.

Version:

$Revision: 1.22 $

Author:

Jöran

Created:

den 2 augusti 2002

Constructor Summary

ValueObjectImpl(RDFNode node, Resource variable)
Constructor for the ValueObject object Objects from this constructor should only be used for static values, this since the RDFNode can not be updated.

ValueObjectImpl(Statement statement, Resource Variable)
Constructor for the ValueObject object

ValueObjectImpl(String value, String language, Resource variable)
Deprecated.

Method Summary

ValueObject	duplicate() Creates a (structural) duplicate of this object, all values are set to default.
int	getId() Deprecated.
String	getLanguage() Gets the literalLanguage attribute of the ValueObject object
RDFNode	getNode() Gets the node attribute of the ValueObject object
Property	getPredicate()
Resource	getResource() Gets the resource attribute of the ValueObject object
Resource	getSubject() Gets the subject attribute of the ValueObject object
String	getValue() Gets the language attribute of the value, if such exists.
boolean	isDummy() Tells wether a valueobject is empty, i.e. set to a dummy value.
boolean	isEdited()
int	isOk() OBS OBS OBS, THIS FUNCTION IS UNUSED AND I CAN'T FIGURE IT'S FUNCTION.
boolean	isValid()
void	remove() Removes the fact from the RDF-model
void	removeValueAndPossibleConstraints() Removes the fact from the RDF-model by calling the remove() and then all other constraints from the value-node in the case it is a resource.
void	setEdited(boolean edited)
void	setPredicate(Property newPredicate)
void	setValid(boolean valid) Used for validation of values in forms.
void	setValue(String value) Sets the literal value of the fact.
void	setValue(String value, String language) Sets the value of the fact.
String	toString() Returns a string representation of the object.

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueObjectImpl

public ValueObjectImpl(String value,
                       String language,
                       Resource variable)

Deprecated.

Constructor for the ValueObject object

Parameters:

value - Description of the Parameter

language - Description of the Parameter

ValueObjectImpl

public ValueObjectImpl(Statement statement,
                       Resource Variable)

Constructor for the ValueObject object

Parameters:

statement - the statement that represents the fact.

ValueObjectImpl

public ValueObjectImpl(RDFNode node,
                       Resource variable)

Constructor for the ValueObject object Objects from this constructor should only be used for static values, this since the RDFNode can not be updated. For objects that may be updated use ValueObjct(Statement statement) .

Parameters:

node - the node that represents the fact.

Method Detail

getId

public int getId()

Deprecated.

Gets the id attribute of the ValueObject object

Returns:

The id value

getNode

public RDFNode getNode()

Gets the node attribute of the ValueObject object

Specified by:

getNode in interface ValueObject

Returns:

The node value

getSubject

public Resource getSubject()

Gets the subject attribute of the ValueObject object

Specified by:

getSubject in interface ValueObject

Returns:

The subject value

getResource

public Resource getResource()

Gets the resource attribute of the ValueObject object

Specified by:

getResource in interface ValueObject

Returns:

The node value, as a resource.

getValue

public String getValue()

Gets the language attribute of the value, if such exists.

Specified by:

getValue in interface ValueObject

Returns:

The string value of the language. The string is empty if no language exists.

getLanguage

public String getLanguage()

Gets the literalLanguage attribute of the ValueObject object

Specified by:

getLanguage in interface ValueObject

Returns:

The literalLanguage value

setValue

public void setValue(String value)
              throws RDFException

Sets the literal value of the fact.

Specified by:

setValue in interface ValueObject

Parameters:

value - The new value

Throws:

RDFException - thrown in case of exception while updating the object.

setValue

public void setValue(String value,
                     String language)
              throws RDFException

Sets the value of the fact. If the fact is represented by a Literal the value will be set with a language attribute. (The language attribute will only set if the language argument is non-null)
For facts that is represented by Resource will the language argument have no effect.

Specified by:

setValue in interface ValueObject

Parameters:

value - The new value

language - The new language value

Throws:

RDFException - thrown if the value is null, the object represents a root node or in case of exception while updating the data model.

setPredicate

public void setPredicate(Property newPredicate)
                  throws RDFException

Specified by:

setPredicate in interface ValueObject

Throws:

RDFException

getPredicate

public Property getPredicate()
                      throws RDFException

Specified by:

getPredicate in interface ValueObject

Throws:

RDFException

duplicate

public ValueObject duplicate()
                      throws RDFException

Creates a (structural) duplicate of this object, all values are set to default. Typically is this method used for duplicating ValueObject that wraps facts in form of Statements

NOTE: The data model is updated with the new object

Specified by:

duplicate in interface ValueObject

Returns:

If this object represents a Statement a (structural)duplicate of this object, otherwise null.

Throws:

RDFException - thrown in case of exception while duplicating the Statement

remove

public void remove()
            throws RDFException

Removes the fact from the RDF-model

Specified by:

remove in interface ValueObject

Throws:

RDFException - thrown in case of exception while removing fact from the RDF-model.

removeValueAndPossibleConstraints

public void removeValueAndPossibleConstraints()
                                       throws RDFException

Description copied from interface: ValueObject

Removes the fact from the RDF-model by calling the ValueObject.remove() and then all other constraints from the value-node in the case it is a resource.

Specified by:

removeValueAndPossibleConstraints in interface ValueObject

Throws:

RDFException - thrown in case of exception while removing fact from the RDF-model.

toString

public String toString()

Returns a string representation of the object.

Returns:

a string representation of the object

setEdited

public void setEdited(boolean edited)

Specified by:

setEdited in interface ValueObject

setValid

public void setValid(boolean valid)

Description copied from interface: ValueObject

Used for validation of values in forms.

Specified by:

setValid in interface ValueObject

isEdited

public boolean isEdited()

Specified by:

isEdited in interface ValueObject

Returns:

isValid

public boolean isValid()

Specified by:

isValid in interface ValueObject

Returns:

isOk

public int isOk()

Description copied from interface: ValueObject

OBS OBS OBS, THIS FUNCTION IS UNUSED AND I CAN'T FIGURE IT'S FUNCTION. Enlighten me by explaining it here.... Otherwise I will remove it. /Matthias

Specified by:

isOk in interface ValueObject

Returns:

isDummy

public boolean isDummy()

Description copied from interface: ValueObject

Tells wether a valueobject is empty, i.e. set to a dummy value.

Specified by:

isDummy in interface ValueObject

Returns:

boolean