| java.lang.Object
 org.openrdf.sail.nativerdf.TripleStore
| TripleStore | | class TripleStore (Code) | | File-based indexed storage and retrieval of RDF statements. TripleStore
stores statements in the form of four integer IDs. Each ID represent an RDF
value that is stored in a
ValueStore . The four IDs refer to the
statement's subject, predicate, object and context. The ID 0 is
used to represent the "null" context and doesn't map to an actual RDF value.
author:
Arjohn Kampman |
| Field Summary | |
| final static byte | ADDED_FLAG
Bit field indicating that a statement has been added in a (currently
active) transaction. | | final static int | CONTEXT_IDX
| | final static byte | EXPLICIT_FLAG
Bit field indicating that a statement has been explicitly added (instead
of being inferred). | | final static int | FLAG_IDX
| | final static int | OBJ_IDX
| | final static int | PRED_IDX
| | final static int | RECORD_LENGTH
| | final static byte | REMOVED_FLAG
Bit field indicating that a statement has been removed in a (currently
active) transaction. | | final static int | SUBJ_IDX
| | final static byte | TOGGLE_EXPLICIT_FLAG
Bit field indicating that the explicit flag has been toggled (from true to
false, or vice versa) in a (currently active) transaction. | | final Logger | logger
|
| Method Summary | |
| public void | clear()
| | public void | close()
| | public void | commit()
| | public RecordIterator | getTriples(int subj, int pred, int obj, int context)
| | public RecordIterator | getTriples(int subj, int pred, int obj, int context, boolean readTransaction)
| | public RecordIterator | getTriples(int subj, int pred, int obj, int context, boolean explicit, boolean readTransaction)
| | public int | removeTriples(int subj, int pred, int obj, int context)
| | public int | removeTriples(int subj, int pred, int obj, int context, boolean explicit)
Parameters:
subj - The subject for the pattern, or -1 for a wildcard.
Parameters:
pred - The predicate for the pattern, or -1 for a wildcard.
Parameters:
obj - The object for the pattern, or -1 for a wildcard.
Parameters:
context - The context for the pattern, or -1 for a wildcard.
Parameters:
explicit - Flag indicating whether explicit or inferred statements should beremoved; true removes explicit statements that match thepattern, false removes inferred statements that matchthe pattern. | | public void | rollback()
| | public void | startTransaction()
| | public boolean | storeTriple(int subj, int pred, int obj, int context)
| | public boolean | storeTriple(int subj, int pred, int obj, int context, boolean explicit)
| | protected void | sync()
|
| ADDED_FLAG | | final static byte ADDED_FLAG(Code) | | Bit field indicating that a statement has been added in a (currently
active) transaction.
|
| CONTEXT_IDX | | final static int CONTEXT_IDX(Code) | | |
| EXPLICIT_FLAG | | final static byte EXPLICIT_FLAG(Code) | | Bit field indicating that a statement has been explicitly added (instead
of being inferred).
|
| FLAG_IDX | | final static int FLAG_IDX(Code) | | |
| OBJ_IDX | | final static int OBJ_IDX(Code) | | |
| PRED_IDX | | final static int PRED_IDX(Code) | | |
| RECORD_LENGTH | | final static int RECORD_LENGTH(Code) | | |
| REMOVED_FLAG | | final static byte REMOVED_FLAG(Code) | | Bit field indicating that a statement has been removed in a (currently
active) transaction.
|
| SUBJ_IDX | | final static int SUBJ_IDX(Code) | | |
| TOGGLE_EXPLICIT_FLAG | | final static byte TOGGLE_EXPLICIT_FLAG(Code) | | Bit field indicating that the explicit flag has been toggled (from true to
false, or vice versa) in a (currently active) transaction.
|
| logger | | final Logger logger(Code) | | |
| removeTriples | | public int removeTriples(int subj, int pred, int obj, int context) throws IOException(Code) | | |
| removeTriples | | public int removeTriples(int subj, int pred, int obj, int context, boolean explicit) throws IOException(Code) | |
Parameters:
subj - The subject for the pattern, or -1 for a wildcard.
Parameters:
pred - The predicate for the pattern, or -1 for a wildcard.
Parameters:
obj - The object for the pattern, or -1 for a wildcard.
Parameters:
context - The context for the pattern, or -1 for a wildcard.
Parameters:
explicit - Flag indicating whether explicit or inferred statements should beremoved; true removes explicit statements that match thepattern, false removes inferred statements that matchthe pattern. The number of triples that were removed.
throws:
IOException - |
| storeTriple | | public boolean storeTriple(int subj, int pred, int obj, int context) throws IOException(Code) | | |
| storeTriple | | public boolean storeTriple(int subj, int pred, int obj, int context, boolean explicit) throws IOException(Code) | | |
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