Package org.eclipse.rdf4j.model.impl
Class AbstractModel
- java.lang.Object
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- java.util.AbstractCollection<E>
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- java.util.AbstractSet<Statement>
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- org.eclipse.rdf4j.model.impl.AbstractModel
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Iterable<Statement>
,java.util.Collection<Statement>
,java.util.Set<Statement>
,Model
,NamespaceAware
- Direct Known Subclasses:
EmptyModel
,FilteredModel
,LinkedHashModel
,SailModel
,TreeModel
,UnmodifiableModel
public abstract class AbstractModel extends java.util.AbstractSet<Statement> implements Model
Provides basic operations that are common to all Models.- See Also:
- Serialized Form
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Nested Class Summary
Nested Classes Modifier and Type Class Description private class
AbstractModel.ValueSet<V extends Value>
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Field Summary
Fields Modifier and Type Field Description private static long
serialVersionUID
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Constructor Summary
Constructors Constructor Description AbstractModel()
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description boolean
add(Statement st)
boolean
addAll(java.util.Collection<? extends Statement> c)
void
clear()
boolean
clear(Resource... contexts)
Removes statements with the specified context exist in this model.private void
closeIterator(java.util.Collection<?> c, java.util.Iterator<?> e)
protected void
closeIterator(java.util.Iterator<?> iter)
Cleans up any resources used by this iterator.boolean
contains(java.lang.Object o)
boolean
containsAll(java.util.Collection<?> c)
java.util.Set<Resource>
contexts()
Returns aSet
view of the contexts contained in this model.boolean
isEmpty()
java.util.Set<Value>
objects()
Returns aSet
view of the objects contained in this model.java.util.Set<IRI>
predicates()
Returns aSet
view of the predicates contained in this model.boolean
remove(java.lang.Object o)
boolean
removeAll(java.util.Collection<?> c)
abstract void
removeTermIteration(java.util.Iterator<Statement> iter, Resource subj, IRI pred, Value obj, Resource... contexts)
Called by aggregate sets when a term has been removed from a term iterator.boolean
retainAll(java.util.Collection<?> c)
java.util.Set<Resource>
subjects()
Returns aSet
view of the subjects contained in this model.java.lang.Object[]
toArray()
<T> T[]
toArray(T[] a)
Model
unmodifiable()
Returns an unmodifiable view of this model.-
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.eclipse.rdf4j.model.Model
add, contains, filter, getStatements, remove, removeNamespace, setNamespace, setNamespace
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Methods inherited from interface org.eclipse.rdf4j.model.NamespaceAware
getNamespace, getNamespaces
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Field Detail
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serialVersionUID
private static final long serialVersionUID
- See Also:
- Constant Field Values
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Method Detail
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unmodifiable
public Model unmodifiable()
Description copied from interface:Model
Returns an unmodifiable view of this model. This method provides "read-only" access to this model. Query operations on the returned model "read through" to this model, and attempts to modify the returned model, whether direct or via its iterator, result in anUnsupportedOperationException
.- Specified by:
unmodifiable
in interfaceModel
- Returns:
- an unmodifiable view of the specified set.
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add
public boolean add(Statement st)
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isEmpty
public boolean isEmpty()
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containsAll
public boolean containsAll(java.util.Collection<?> c)
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removeAll
public boolean removeAll(java.util.Collection<?> c)
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toArray
public java.lang.Object[] toArray()
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toArray
public <T> T[] toArray(T[] a)
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addAll
public boolean addAll(java.util.Collection<? extends Statement> c)
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retainAll
public boolean retainAll(java.util.Collection<?> c)
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clear
public void clear()
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clear
public boolean clear(Resource... contexts)
Description copied from interface:Model
Removes statements with the specified context exist in this model.
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remove
public boolean remove(java.lang.Object o)
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contains
public boolean contains(java.lang.Object o)
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subjects
public java.util.Set<Resource> subjects()
Description copied from interface:Model
Returns aSet
view of the subjects contained in this model. The set is backed by the model, so changes to the model are reflected in the set, and vice-versa. If the model is modified while an iteration over the set is in progress (except through the iterator's ownremove
operation), the results of the iteration are undefined. The set supports element removal, which removes all statements from the model for which that element is a subject value, via theIterator.remove
,Set.remove
,removeAll
,retainAll
, andclear
operations. It does not support theadd
oraddAll
operations if the parameterspred
orobj
are null.
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predicates
public java.util.Set<IRI> predicates()
Description copied from interface:Model
Returns aSet
view of the predicates contained in this model. The set is backed by the model, so changes to the model are reflected in the set, and vice-versa. If the model is modified while an iteration over the set is in progress (except through the iterator's ownremove
operation), the results of the iteration are undefined. The set supports element removal, which removes all statements from the model for which that element is a predicate value, via theIterator.remove
,Set.remove
,removeAll
,retainAll
, andclear
operations. It does not support theadd
oraddAll
operations if the parameterssubj
orobj
are null.- Specified by:
predicates
in interfaceModel
- Returns:
- a set view of the predicates contained in this model
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objects
public java.util.Set<Value> objects()
Description copied from interface:Model
Returns aSet
view of the objects contained in this model. The set is backed by the model, so changes to the model are reflected in the set, and vice-versa. If the model is modified while an iteration over the set is in progress (except through the iterator's ownremove
operation), the results of the iteration are undefined. The set supports element removal, which removes all statements from the model for which that element is an object value, via theIterator.remove
,Set.remove
,removeAll
,retainAll
, andclear
operations. It does not support theadd
oraddAll
operations if the parameterssubj
orpred
are null.
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contexts
public java.util.Set<Resource> contexts()
Description copied from interface:Model
Returns aSet
view of the contexts contained in this model. The set is backed by the model, so changes to the model are reflected in the set, and vice-versa. If the model is modified while an iteration over the set is in progress (except through the iterator's ownremove
operation), the results of the iteration are undefined. The set supports element removal, which removes all statements from the model for which that element is a context value, via theIterator.remove
,Set.remove
,removeAll
,retainAll
, andclear
operations. It does not support theadd
oraddAll
operations if the parameterssubj
,pred
orobj
are null.
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removeTermIteration
public abstract void removeTermIteration(java.util.Iterator<Statement> iter, Resource subj, IRI pred, Value obj, Resource... contexts)
Called by aggregate sets when a term has been removed from a term iterator. Exactly one of the last four terms will be non-empty.- Parameters:
iter
- The iterator used to navigate the live set (never null)subj
- the subject term to be removed or nullpred
- the predicate term to be removed or nullobj
- the object term to be removed or nullcontexts
- an array of one context term to be removed or an empty array
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closeIterator
protected void closeIterator(java.util.Iterator<?> iter)
Cleans up any resources used by this iterator. After this call the given iterator should not be used.- Parameters:
iter
- Iterator to clean up
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closeIterator
private void closeIterator(java.util.Collection<?> c, java.util.Iterator<?> e)
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