org.tmatesoft.sqljet.core.internal.table

Class SqlJetBtreeIndexTable

java.lang.Object

org.tmatesoft.sqljet.core.internal.table.SqlJetBtreeTable

org.tmatesoft.sqljet.core.internal.table.SqlJetBtreeIndexTable

All Implemented Interfaces:

ISqlJetBtreeIndexTable, ISqlJetBtreeTable

public class SqlJetBtreeIndexTable
extends SqlJetBtreeTable
implements ISqlJetBtreeIndexTable

Constructor Summary

Constructors

Constructor and Description
SqlJetBtreeIndexTable(ISqlJetBtree btree, java.lang.String indexName, boolean write) Open index by name
SqlJetBtreeIndexTable(ISqlJetBtree btree, java.lang.String indexName, java.util.List<java.lang.String> columns, boolean write)

Method Summary

Modifier and Type	Method and Description
boolean	checkKey(java.lang.Object... key) Check current record against key.
int	compareKey(java.lang.Object[] key)
int	compareKeys(java.lang.Object[] firstKey, java.lang.Object[] lastKey)
boolean	delete(long rowId, java.lang.Object... key) Delete entry which matches to key and point to given rowId.
ISqlJetIndexDef	getIndexDef()
long	getKeyRowId()
void	insert(long rowId, boolean append, java.lang.Object... key) Writes key into the index.
long	lookup(boolean next, java.lang.Object... values) Lookup index entry by key values.
long	lookupLastNear(java.lang.Object[] key)
long	lookupNear(boolean next, java.lang.Object[] key)
void	reindex(ISqlJetSchema schema)

Methods inherited from class org.tmatesoft.sqljet.core.internal.table.SqlJetBtreeTable

clear, close, delete, eof, first, getBlob, getEncoding, getFieldsCount, getFieldType, getFloat, getInteger, getKeySize, getRecord, getString, getValue, getValues, getValueUncached, hasMoved, insert, isNull, last, lock, lockTable, moveTo, newRowId, newRowId, next, popState, previous, pushState, unlock

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.tmatesoft.sqljet.core.internal.table.ISqlJetBtreeTable

clear, close, delete, eof, first, getBlob, getEncoding, getFieldsCount, getFieldType, getFloat, getInteger, getKeySize, getRecord, getString, getValue, getValues, hasMoved, insert, isNull, last, lock, lockTable, moveTo, newRowId, newRowId, next, popState, previous, pushState, unlock

Constructor Detail

SqlJetBtreeIndexTable

public SqlJetBtreeIndexTable(ISqlJetBtree btree,
                             java.lang.String indexName,
                             boolean write)
                      throws SqlJetException

Open index by name

Throws:

SqlJetException

SqlJetBtreeIndexTable

public SqlJetBtreeIndexTable(ISqlJetBtree btree,
                             java.lang.String indexName,
                             java.util.List<java.lang.String> columns,
                             boolean write)
                      throws SqlJetException

Throws:

SqlJetException

Method Detail

getIndexDef

public ISqlJetIndexDef getIndexDef()

Returns:

the indexDef

lookup

public long lookup(boolean next,
                   java.lang.Object... values)
            throws SqlJetException

Description copied from interface: ISqlJetBtreeIndexTable

Lookup index entry by key values. If 'next' is true then just check next entry in index.

Specified by:

lookup in interface ISqlJetBtreeIndexTable

Parameters:

next - just check next index entry

values - the key values

Returns:

Throws:

SqlJetException

compareKeys

public int compareKeys(java.lang.Object[] firstKey,
                       java.lang.Object[] lastKey)
                throws SqlJetException

Specified by:

compareKeys in interface ISqlJetBtreeIndexTable

Returns:

Throws:

SqlJetException

checkKey

public boolean checkKey(java.lang.Object... key)
                 throws SqlJetException

Description copied from interface: ISqlJetBtreeIndexTable

Check current record against key.

Specified by:

checkKey in interface ISqlJetBtreeIndexTable

Returns:

Throws:

SqlJetException

insert

public void insert(long rowId,
                   boolean append,
                   java.lang.Object... key)
            throws SqlJetException

Description copied from interface: ISqlJetBtreeIndexTable

Writes key into the index. Data for the entry is nil. Append flag that provides a hint to the b-tree layer that this insert is likely to be an append.

Specified by:

insert in interface ISqlJetBtreeIndexTable

Throws:

SqlJetException

delete

public boolean delete(long rowId,
                      java.lang.Object... key)
               throws SqlJetException

Description copied from interface: ISqlJetBtreeIndexTable

Delete entry which matches to key and point to given rowId.

Specified by:

delete in interface ISqlJetBtreeIndexTable

Returns:

true if there was deleted entry which matches to key.

Throws:

SqlJetException

getKeyRowId

public long getKeyRowId()
                 throws SqlJetException

Specified by:

getKeyRowId in interface ISqlJetBtreeIndexTable

Throws:

SqlJetException

reindex

public void reindex(ISqlJetSchema schema)
             throws SqlJetException

Throws:

SqlJetException

compareKey

public int compareKey(java.lang.Object[] key)
               throws SqlJetException

Specified by:

compareKey in interface ISqlJetBtreeIndexTable

Returns:

Throws:

SqlJetException

lookupNear

public long lookupNear(boolean next,
                       java.lang.Object[] key)
                throws SqlJetException

Specified by:

lookupNear in interface ISqlJetBtreeIndexTable

Returns:

Throws:

SqlJetException

lookupLastNear

public long lookupLastNear(java.lang.Object[] key)
                    throws SqlJetException

Specified by:

lookupLastNear in interface ISqlJetBtreeIndexTable

Returns:

Throws:

SqlJetException