public class TripleTable<Triple extends org.openrdf.model.Statement> extends Object implements Set<Triple>, Serializable
Constructor and Description |
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TripleTable() |
TripleTable(Collection<Triple> triples) |
Modifier and Type | Method and Description |
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boolean |
add(Triple triple)
Adds the specified element to this set if it is not already present
(optional operation).
|
boolean |
addAll(Collection<? extends Triple> c)
Adds all of the elements in the specified collection to this set if
they're not already present (optional operation).
|
void |
clear()
Removes all of the elements from this set (optional operation).
|
boolean |
contains(Object o)
Returns true if this set contains the specified element.
|
boolean |
containsAll(Collection<?> c)
Returns true if this set contains all of the elements of the
specified collection.
|
boolean |
equals(Object o) |
int |
hashCode() |
boolean |
isEmpty()
Returns true if this set contains no elements.
|
Iterator<Triple> |
iterator()
Returns an iterator over the elements in this set.
|
Collection<org.openrdf.model.Resource> |
listContextIDs() |
Collection<Triple> |
listTriples(org.openrdf.model.Resource subject,
org.openrdf.model.URI property,
org.openrdf.model.Value object,
org.openrdf.model.Resource context,
boolean wildcardContext)
Return a subset of the triples matching the filter criteria.
|
boolean |
remove(Object o)
Removes the specified element from this set if it is present
(optional operation).
|
boolean |
removeAll(Collection<?> c)
Removes from this set all of its elements that are contained in the
specified collection (optional operation).
|
boolean |
retainAll(Collection<?> c)
Retains only the elements in this set that are contained in the
specified collection (optional operation).
|
int |
size()
Returns the number of elements in this set (its cardinality).
|
Object[] |
toArray()
Returns an array containing all of the elements in this set.
|
<T> T[] |
toArray(T[] a)
Returns an array containing all of the elements in this set; the
runtime type of the returned array is that of the specified array.
|
public TripleTable()
public TripleTable(Collection<Triple> triples)
public int size()
public boolean isEmpty()
public boolean contains(Object o)
contains
in interface Collection<Triple extends org.openrdf.model.Statement>
contains
in interface Set<Triple extends org.openrdf.model.Statement>
o
- element whose presence in this set is to be testedClassCastException
- if the type of the specified element
is incompatible with this set (optional)NullPointerException
- if the specified element is null and this
set does not permit null elements (optional)public Iterator<Triple> iterator()
iterator
in interface Iterable<Triple extends org.openrdf.model.Statement>
iterator
in interface Collection<Triple extends org.openrdf.model.Statement>
iterator
in interface Set<Triple extends org.openrdf.model.Statement>
public Object[] toArray()
The returned array will be "safe" in that no references to it are maintained by this set. (In other words, this method must allocate a new array even if this set is backed by an array). The caller is thus free to modify the returned array.
This method acts as bridge between array-based and collection-based APIs.
public <T> T[] toArray(T[] a)
If this set fits in the specified array with room to spare (i.e., the array has more elements than this set), the element in the array immediately following the end of the set is set to null. (This is useful in determining the length of this set only if the caller knows that this set does not contain any null elements.)
If this set makes any guarantees as to what order its elements are returned by its iterator, this method must return the elements in the same order.
Like the toArray()
method, this method acts as bridge between
array-based and collection-based APIs. Further, this method allows
precise control over the runtime type of the output array, and may,
under certain circumstances, be used to save allocation costs.
Suppose x is a set known to contain only strings. The following code can be used to dump the set into a newly allocated array of String:
String[] y = x.toArray(new String[0]);Note that toArray(new Object[0]) is identical in function to toArray().
toArray
in interface Collection<Triple extends org.openrdf.model.Statement>
toArray
in interface Set<Triple extends org.openrdf.model.Statement>
a
- the array into which the elements of this set are to be
stored, if it is big enough; otherwise, a new array of the same
runtime type is allocated for this purpose.ArrayStoreException
- if the runtime type of the specified array
is not a supertype of the runtime type of every element in this
setNullPointerException
- if the specified array is nullpublic boolean add(Triple triple)
The stipulation above does not imply that sets must accept all
elements; sets may refuse to add any particular element, including
null, and throw an exception, as described in the
specification for Collection.add
.
Individual set implementations should clearly document any
restrictions on the elements that they may contain.
add
in interface Collection<Triple extends org.openrdf.model.Statement>
add
in interface Set<Triple extends org.openrdf.model.Statement>
triple
- element to be added to this setUnsupportedOperationException
- if the add operation
is not supported by this setClassCastException
- if the class of the specified element
prevents it from being added to this setNullPointerException
- if the specified element is null and this
set does not permit null elementsIllegalArgumentException
- if some property of the specified element
prevents it from being added to this setpublic boolean remove(Object o)
remove
in interface Collection<Triple extends org.openrdf.model.Statement>
remove
in interface Set<Triple extends org.openrdf.model.Statement>
o
- object to be removed from this set, if presentClassCastException
- if the type of the specified element
is incompatible with this set (optional)NullPointerException
- if the specified element is null and this
set does not permit null elements (optional)UnsupportedOperationException
- if the remove operation
is not supported by this setpublic boolean containsAll(Collection<?> c)
containsAll
in interface Collection<Triple extends org.openrdf.model.Statement>
containsAll
in interface Set<Triple extends org.openrdf.model.Statement>
c
- collection to be checked for containment in this setClassCastException
- if the types of one or more elements
in the specified collection are incompatible with this
set (optional)NullPointerException
- if the specified collection contains one
or more null elements and this set does not permit null
elements (optional), or if the specified collection is nullcontains(Object)
public boolean addAll(Collection<? extends Triple> c)
addAll
in interface Collection<Triple extends org.openrdf.model.Statement>
addAll
in interface Set<Triple extends org.openrdf.model.Statement>
c
- collection containing elements to be added to this setUnsupportedOperationException
- if the addAll operation
is not supported by this setClassCastException
- if the class of an element of the
specified collection prevents it from being added to this setNullPointerException
- if the specified collection contains one
or more null elements and this set does not permit null
elements, or if the specified collection is nullIllegalArgumentException
- if some property of an element of the
specified collection prevents it from being added to this setSet.add(Object)
public boolean retainAll(Collection<?> c)
retainAll
in interface Collection<Triple extends org.openrdf.model.Statement>
retainAll
in interface Set<Triple extends org.openrdf.model.Statement>
c
- collection containing elements to be retained in this setUnsupportedOperationException
- if the retainAll operation
is not supported by this setClassCastException
- if the class of an element of this set
is incompatible with the specified collection (optional)NullPointerException
- if this set contains a null element and the
specified collection does not permit null elements (optional),
or if the specified collection is nullremove(Object)
public boolean removeAll(Collection<?> c)
removeAll
in interface Collection<Triple extends org.openrdf.model.Statement>
removeAll
in interface Set<Triple extends org.openrdf.model.Statement>
c
- collection containing elements to be removed from this setUnsupportedOperationException
- if the removeAll operation
is not supported by this setClassCastException
- if the class of an element of this set
is incompatible with the specified collection (optional)NullPointerException
- if this set contains a null element and the
specified collection does not permit null elements (optional),
or if the specified collection is nullremove(Object)
,
contains(Object)
public void clear()
clear
in interface Collection<Triple extends org.openrdf.model.Statement>
clear
in interface Set<Triple extends org.openrdf.model.Statement>
UnsupportedOperationException
- if the clear method
is not supported by this setpublic Collection<Triple> listTriples(org.openrdf.model.Resource subject, org.openrdf.model.URI property, org.openrdf.model.Value object, org.openrdf.model.Resource context, boolean wildcardContext)
subject
- property
- object
- context
- wildcardContext
- public Collection<org.openrdf.model.Resource> listContextIDs()
public boolean equals(Object o)
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