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SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
An RDF Resource.
Resource instances when created are associated with a specific model.
They support a range of methods, such as getProperty()
and
addProperty()
which will access or modify that model. This
enables the programmer to write code in a compact and easy style.
This interface provides methods supporting typed literals. This means
that methods are provided which will translate a built in type, or an
object to an RDF Literal. This translation is done by invoking the
toString()
method of the object, or its built in equivalent.
The reverse translation is also supported. This is built in for built
in types. Factory objects, provided by the application, are used
for application objects.
This interface provides methods for supporting enhanced resources. An enhanced resource is a resource to which the application has added behaviour. RDF containers are examples of enhanced resources built in to this package. Enhanced resources are supported by encapsulating a resource created by an implementation in another class which adds the extra behaviour. Factory objects are used to construct such enhanced resources.
Method Summary | |
Resource |
abort()
Abort the transaction in the associated model. |
Resource |
addProperty(Property p,
boolean o)
Add a property to this resource. |
Resource |
addProperty(Property p,
char o)
Add a property to this resource. |
Resource |
addProperty(Property p,
double o)
Add a property to this resource. |
Resource |
addProperty(Property p,
float o)
Add a property to this resource. |
Resource |
addProperty(Property p,
long o)
Add a property to this resource. |
Resource |
addProperty(Property p,
java.lang.Object o)
Add a property to this resource. |
Resource |
addProperty(Property p,
RDFNode o)
Add a property to this resource. |
Resource |
addProperty(Property p,
java.lang.String o)
Add a property to this resource. |
Resource |
addProperty(Property p,
java.lang.String o,
java.lang.String l)
Add a property to this resource. |
Resource |
begin()
Begin a transaction in the associated model. |
Resource |
commit()
Commit the transaction in the associated model. |
boolean |
equals(java.lang.Object o)
Determine whether two objects represent the same resource. |
AnonId |
getId()
Returns an a unique identifier for anonymous resources. |
java.lang.String |
getLocalName()
Returns the name of this resource within its namespace. |
Model |
getModel()
Return the model associated with this resource. |
java.lang.String |
getNameSpace()
Returns the namespace associated with this resource. |
Statement |
getProperty(Property p)
Get a property value of this resource. |
java.lang.String |
getURI()
Return the URI of the resource, or the empty string if it is anonymous. |
boolean |
hasProperty(Property p)
Determine whether this resource has any values for a given property. |
boolean |
hasProperty(Property p,
boolean o)
Test if this resource has a given property with a given value. |
boolean |
hasProperty(Property p,
char o)
Test if this resource has a given property with a given value. |
boolean |
hasProperty(Property p,
double o)
Test if this resource has a given property with a given value. |
boolean |
hasProperty(Property p,
float o)
Test if this resource has a given property with a given value. |
boolean |
hasProperty(Property p,
long o)
Test if this resource has a given property with a given value. |
boolean |
hasProperty(Property p,
java.lang.Object o)
Test if this resource has a given property with a given value. |
boolean |
hasProperty(Property p,
RDFNode o)
Test if this resource has a given property with a given value. |
boolean |
hasProperty(Property p,
java.lang.String o)
Test if this resource has a given property with a given value. |
boolean |
hasProperty(Property p,
java.lang.String o,
java.lang.String l)
Test if this resource has a given property with a given value. |
boolean |
isAnon()
Determine whether this resource is anonymous. |
StmtIterator |
listProperties()
Return an iterator over all the properties of this resource. |
StmtIterator |
listProperties(Property p)
List all the values of the property p. |
Resource |
removeProperties()
Delete all the properties for this resource from the associated model. |
java.lang.String |
toString()
Return a string representation of the resource. |
Method Detail |
public AnonId getId() throws RDFException
The id is unique within the scope of a particular implementation. All models within an implementation will use the same id for the same anonymous resource.
This method is undefined if called on resources which are not anonymous and may raise an exception.
RDFException
- Generic RDF exception.public java.lang.String getURI()
public java.lang.String getNameSpace()
public java.lang.String getLocalName()
public java.lang.String toString()
toString
in interface RDFNode
toString
in class java.lang.Object
public boolean equals(java.lang.Object o)
A resource can only be equal to another resource. If both resources are not anonymous, then they are equal if the URI's are equal. If both resources are anonymous, they are equal only if there Id's are the same. If one resource is anonymous and the other is not, then they are not equal.
equals
in class java.lang.Object
o
- The object to be compared.public boolean isAnon()
public Statement getProperty(Property p) throws RDFException
The model associated with the resource instance is searched for statements whose subject is this resource and whose predicate is p. If such a statement is found, it is returned. If several such statements are found, any one may be returned. If no such statements are found, and exception is thrown.
p
- The property sought.RDFException
- Generic RDF exception.public StmtIterator listProperties(Property p) throws RDFException
Returns an iterator over all the statements in the associated model whose subject is this resource and whose predicate is p.
p
- The predicate sought.RDFException
- Generic RDF exception.public StmtIterator listProperties() throws RDFException
The model associated with this resource is search and an iterator is returned which iterates over all the statements which have this resource as a subject.
RDFException
- Generic RDF exception.public Resource addProperty(Property p, boolean o) throws RDFException
A statement with this resource as the subject, p as the predicate and o as the object is added to the model associated with this resource.
o is converted to a string by calling its toString()
method.
p
- The property to be added.o
- The value of the property to be added.RDFException
- Generic RDF exception.public Resource addProperty(Property p, long o) throws RDFException
A statement with this resource as the subject, p as the predicate and o as the object is added to the model associated with this resource.
o is converted to a string by calling its toString()
method.
p
- The property to be added.o
- The value of the property to be added.RDFException
- Generic RDF exception.public Resource addProperty(Property p, char o) throws RDFException
A statement with this resource as the subject, p as the predicate and o as the object is added to the model associated with this resource.
o is converted to a string by calling its toString()
method.
p
- The property to be added.o
- The value of the property to be added.RDFException
- Generic RDF exception.public Resource addProperty(Property p, float o) throws RDFException
A statement with this resource as the subject, p as the predicate and o as the object is added to the model associated with this resource.
o is converted to a string by calling its toString()
method.
p
- The property to be added.o
- The value of the property to be added.RDFException
- Generic RDF exception.public Resource addProperty(Property p, double o) throws RDFException
A statement with this resource as the subject, p as the predicate and o as the object is added to the model associated with this resource.
o is converted to a string by calling its toString()
method.
p
- The property to be added.o
- The value of the property to be added.RDFException
- Generic RDF exception.public Resource addProperty(Property p, java.lang.String o) throws RDFException
A statement with this resource as the subject, p as the predicate and o as the object is added to the model associated with this resource.
p
- The property to be added.o
- The value of the property to be added.RDFException
- Generic RDF exception.public Resource addProperty(Property p, java.lang.String o, java.lang.String l) throws RDFException
A statement with this resource as the subject, p as the predicate and o as the object is added to the model associated with this resource.
p
- The property to be added.o
- The value of the property to be added.l
- the language of the propertyRDFException
- Generic RDF exception.public Resource addProperty(Property p, java.lang.Object o) throws RDFException
A statement with this resource as the subject, p as the predicate and o as the object is added to the model associated with this resource.
o is converted to a string by calling its toString()
method.
p
- The property to be added.o
- The value of the property to be added.RDFException
- Generic RDF exception.public Resource addProperty(Property p, RDFNode o) throws RDFException
A statement with this resource as the subject, p as the predicate and o as the object is added to the model associated with this resource.
p
- The property to be added.o
- The value of the property to be added.RDFException
- Generic RDF exception.public boolean hasProperty(Property p) throws RDFException
p
- The property sought.RDFException
- Generic RDF exception.public boolean hasProperty(Property p, boolean o) throws RDFException
p
- The property sought.o
- The value of the property sought.RDFException
- Generic RDF exception.public boolean hasProperty(Property p, long o) throws RDFException
p
- The property sought.o
- The value of the property sought.RDFException
- Generic RDF exception.public boolean hasProperty(Property p, char o) throws RDFException
p
- The property sought.o
- The value of the property sought.RDFException
- Generic RDF exception.public boolean hasProperty(Property p, float o) throws RDFException
p
- The property sought.o
- The value of the property sought.RDFException
- Generic RDF exception.public boolean hasProperty(Property p, double o) throws RDFException
p
- The property sought.o
- The value of the property sought.RDFException
- Generic RDF exception.public boolean hasProperty(Property p, java.lang.String o) throws RDFException
p
- The property sought.o
- The value of the property sought.RDFException
- Generic RDF exception.public boolean hasProperty(Property p, java.lang.String o, java.lang.String l) throws RDFException
p
- The property sought.o
- The value of the property sought.l
- The language of the property sought.RDFException
- Generic RDF exception.public boolean hasProperty(Property p, java.lang.Object o) throws RDFException
p
- The property sought.o
- The value of the property sought.RDFException
- Generic RDF exception.public boolean hasProperty(Property p, RDFNode o) throws RDFException
p
- The property sought.o
- The value of the property sought.RDFException
- Generic RDF exception.public Resource removeProperties() throws RDFException
RDFException
- Generic RDF exception.public Resource begin() throws RDFException
RDFException
- Generic RDF exception.public Resource abort() throws RDFException
RDFException
- Generic RDF exception.public Resource commit() throws RDFException
RDFException
- Generic RDF exception.public Model getModel()
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