public interface Statement extends FrontsTriple
A Statement is not a Resource, but can produce a ReifiedStatement that represents it and from which the Statement can be recovered.
A statement instance tracks which model created it, if any. All the Resource components of a Statement are in the same model as the Statement, if it has one, and are in no model if the Statement isn't.
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.
Modifier and Type | Method and Description |
---|---|
Statement |
changeLiteralObject(boolean o)
Remove this statement (s, p, x) from the model that contains it.
|
Statement |
changeLiteralObject(char o)
Remove this statement (s, p, x) from the model that contains it.
|
Statement |
changeLiteralObject(double o)
Remove this statement (s, p, x) from the model that contains it.
|
Statement |
changeLiteralObject(float o)
Remove this statement (s, p, x) from the model that contains it.
|
Statement |
changeLiteralObject(int o)
Remove this statement (s, p, x) from the model that contains it.
|
Statement |
changeLiteralObject(long o)
Remove this statement (s, p, x) from the model that contains it.
|
Statement |
changeObject(RDFNode o)
change the object of the statement (S, P, X) to (S, P, o).
|
Statement |
changeObject(String o)
change the object of the statement (S, P, X) to (S, P, o).
|
Statement |
changeObject(String o,
boolean wellFormed)
change the object of the statement (S, P, X) to (S, P, o).
|
Statement |
changeObject(String o,
String l)
change the object of the statement (S, P, X) to (S, P, o).
|
Statement |
changeObject(String o,
String l,
boolean wellFormed)
change the object of the statement (S, P, X) to (S, P, o).
|
ReifiedStatement |
createReifiedStatement()
answer a ReifiedStatement object that embodies this Statement and
is in the same Model (if any).
|
ReifiedStatement |
createReifiedStatement(String uri)
answer a ReifiedStatement object that embodies this Statement, has
the same Model, and has the given
uri . |
boolean |
equals(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.
|
String |
getLanguage()
Return the language of the object of the statement.
|
RDFList |
getList()
Return the object of the statement as an RDF List.
|
Literal |
getLiteral()
Return the object of the statement.
|
long |
getLong()
Return the object of the statement.
|
Model |
getModel()
get the Model this Statement was created in.
|
RDFNode |
getObject()
An accessor funtion to 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)
Deprecated.
|
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.
|
String |
getString()
Return the object of the statement.
|
Resource |
getSubject()
An accessor method to return the subject of the statements.
|
int |
hashCode()
Returns asTriple().hashCode()
|
boolean |
hasWellFormedXML()
Answer true iff the Literal object of this statement is well-formed XML
(ie equivalent to getLiteral().isWellFormedXML()).
|
boolean |
isReified()
Determine if this statement is the subject of any statements its associated
model.
|
RSIterator |
listReifiedStatements()
answer an iterator which delivers all the reified statements in the model
this Statement belongs to that match this Statement.
|
Statement |
remove()
Remove this statement from its associated model.
|
void |
removeReification()
Finds all possible resources which are
the reification of this statement, and for each
removes all four triples of the reification quad.
|
asTriple
boolean equals(Object o)
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.
Resource getSubject()
Property getPredicate()
RDFNode getObject()
Statement getProperty(Property p)
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.
p
- the property soughtStatement getStatementProperty(Property p)
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.
p
- the property soughtResource getResource()
An exception will be thrown if the object is not a resource.
Literal getLiteral()
An exception will be thrown if the object is not a Literal.
boolean getBoolean()
An exception will be thrown if the object is not a Literal.
byte getByte()
An exception will be thrown if the object is not a Literal.
short getShort()
An exception will be thrown if the object is not a Literal.
int getInt()
An exception will be thrown if the object is not a Literal.
long getLong()
An exception will be thrown iof the object is not a Literal.
char getChar()
An exception will be thrown if the object is not a Literal.
float getFloat()
An exception will be thrown if the object is not a Literal.
double getDouble()
An exception will be thrown if the object is not a Literal.
String getString()
An exception will be thrown if the object is not a Literal.
@Deprecated Resource getResource(ResourceF f)
An exception will be thrown if the object is not a Resource.
Bag getBag()
An exception will be thrown if the object is not a Resource.
Alt getAlt()
An exception will be thrown if the object is not a Resource.
Seq getSeq()
An exception will be thrown if the object is not a Resource.
RDFList getList()
An exception will be thrown if the object is not an RDFList
.
String getLanguage()
An exception will be thrown if the object is not a Literal.
boolean hasWellFormedXML()
Statement changeLiteralObject(boolean o)
Statement changeLiteralObject(long o)
Statement changeLiteralObject(int o)
Statement changeLiteralObject(char o)
Statement changeLiteralObject(float o)
Statement changeLiteralObject(double o)
Statement changeObject(String o)
The statement with the old value is removed from the model and a new statement with the new value added and returned.
o
- The value to be set.Statement changeObject(String o, boolean wellFormed)
The statement with the old value is removed from the model and a new statement with the new value added and returned.
o
- The value to be set.wellFormed
- true if o is well formed XMLStatement changeObject(String o, String l)
The statement with the old value is removed from the model and a new statement with the new value added.
o
- The value to be set.l
- the language of the StringStatement changeObject(String o, String l, boolean wellFormed)
The statement with the old value is removed from the model and a new statement with the new value added.
o
- The value to be set.l
- the language of the StringStatement changeObject(RDFNode o)
The statement with the old value is removed from the model and a new statement with the new value added.
o
- The value to be setStatement remove()
The statement with the same subject, predicate and object as this statement will be removed from the model associated with this statement.
boolean isReified()
ReifiedStatement createReifiedStatement()
ReifiedStatement createReifiedStatement(String uri)
uri
.RSIterator listReifiedStatements()
Model getModel()
void removeReification()
Licenced under the Apache License, Version 2.0