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public interface Resource
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. |
Node |
getNode()
Deprecated. use asNode(). |
Statement |
getProperty(Property p)
Answer some statement (this, p, O) in the associated model. |
Statement |
getRequiredProperty(Property p)
Get a property value of this resource. |
java.lang.String |
getURI()
Return the URI of the resource, or null if it's a bnode. |
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 |
hasURI(java.lang.String uri)
Answer true iff this Resource is a URI resource with the given URI. |
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 |
removeAll(Property p)
Delete all the statements with predicate p for this resource
from its associated model. |
Resource |
removeProperties()
Delete all the properties for this resource from the associated model. |
java.lang.String |
toString()
Return a string representation of the resource. |
Methods inherited from interface com.hp.hpl.jena.rdf.model.RDFNode |
---|
as, canAs, inModel, isAnon, isLiteral, isResource, isURIResource, visitWith |
Methods inherited from interface com.hp.hpl.jena.graph.FrontsNode |
---|
asNode |
Method Detail |
---|
AnonId getId()
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.
Node getNode()
boolean hasURI(java.lang.String uri)
java.lang.String getURI()
java.lang.String getNameSpace()
java.lang.String getLocalName()
java.lang.String toString()
toString
in interface RDFNode
toString
in class java.lang.Object
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.
Statement getRequiredProperty(Property p)
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, an exception is thrown.
p
- The property sought.
PropertyNotFoundException
- if no such statement foundStatement getProperty(Property p)
p
- the property sought
StmtIterator listProperties(Property p)
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.
StmtIterator listProperties()
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.
Resource addProperty(Property p, boolean o)
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.
Resource addProperty(Property p, long o)
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.
Resource addProperty(Property p, char o)
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.
Resource addProperty(Property p, float o)
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.
Resource addProperty(Property p, double o)
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.
Resource addProperty(Property p, java.lang.String o)
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.
Resource addProperty(Property p, java.lang.String o, java.lang.String l)
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 property
Resource addProperty(Property p, java.lang.Object o)
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.
Resource addProperty(Property p, RDFNode o)
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.
boolean hasProperty(Property p)
p
- The property sought.
boolean hasProperty(Property p, boolean o)
p
- The property sought.o
- The value of the property sought.
boolean hasProperty(Property p, long o)
p
- The property sought.o
- The value of the property sought.
boolean hasProperty(Property p, char o)
p
- The property sought.o
- The value of the property sought.
boolean hasProperty(Property p, float o)
p
- The property sought.o
- The value of the property sought.
boolean hasProperty(Property p, double o)
p
- The property sought.o
- The value of the property sought.
boolean hasProperty(Property p, java.lang.String o)
p
- The property sought.o
- The value of the property sought.
boolean hasProperty(Property p, java.lang.String o, java.lang.String l)
p
- The property sought.o
- The value of the property sought.l
- The language of the property sought.
boolean hasProperty(Property p, java.lang.Object o)
p
- The property sought.o
- The value of the property sought.
boolean hasProperty(Property p, RDFNode o)
p
- The property sought.o
- The value of the property sought.
Resource removeProperties()
Resource removeAll(Property p)
p
for this resource
from its associated model.
p
- the property to remove
Resource begin()
Resource abort()
Resource commit()
Model getModel()
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