org.axiondb.engine.indexes
Class StringBTreeIndex

java.lang.Object
  org.axiondb.event.BaseTableModificationListener
      org.axiondb.engine.indexes.BaseIndex
          org.axiondb.engine.indexes.BaseBTreeIndex
              org.axiondb.engine.indexes.ObjectBTreeIndex
                  org.axiondb.engine.indexes.StringBTreeIndex

All Implemented Interfaces:

TableModificationListener, Index

public class StringBTreeIndex
extends ObjectBTreeIndex

Version:

$Revision: 1.6 $ $Date: 2005/06/18 01:03:45 $

Field Summary

Fields inherited from class org.axiondb.engine.indexes.ObjectBTreeIndex

_minimizationFactor

Fields inherited from interface org.axiondb.Index

ARRAY, BTREE, DEFAULT, TTREE

Constructor Summary

StringBTreeIndex(java.lang.String name, Column column, boolean unique)

StringBTreeIndex(java.lang.String name, Column column, boolean unique, int minimizationFactor)

StringBTreeIndex(java.lang.String name, Column column, boolean unique, int minimizationFactor, java.io.File dataDirectory)

Method Summary

protected ObjectBTree	createTree(java.io.File dataDirectory, java.lang.String name, int minimizationFactor, DataType dataType)
IndexLoader	getIndexLoader()
int	getMinimizationFactor()
protected java.lang.Object	getNullKey()

Methods inherited from class org.axiondb.engine.indexes.ObjectBTreeIndex

changeRowId, getBTree, getInorderRowIterator, getRowIterator, rowDeleted, rowInserted, rowUpdated, truncate

Methods inherited from class org.axiondb.engine.indexes.BaseBTreeIndex

getType, save, saveAfterTruncate, supportsFunction

Methods inherited from class org.axiondb.engine.indexes.BaseIndex

getComparator, getDataType, getIndexedColumn, getName, isUnique

Methods inherited from class org.axiondb.event.BaseTableModificationListener

columnAdded, constraintAdded, constraintRemoved

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.axiondb.event.TableModificationListener

columnAdded, constraintAdded, constraintRemoved

Methods inherited from interface org.axiondb.Index

getIndexedColumn, getName, isUnique

Constructor Detail

StringBTreeIndex

public StringBTreeIndex(java.lang.String name,
                        Column column,
                        boolean unique)
                 throws AxionException

Throws:

AxionException

StringBTreeIndex

public StringBTreeIndex(java.lang.String name,
                        Column column,
                        boolean unique,
                        int minimizationFactor)
                 throws AxionException

Throws:

AxionException

StringBTreeIndex

public StringBTreeIndex(java.lang.String name,
                        Column column,
                        boolean unique,
                        int minimizationFactor,
                        java.io.File dataDirectory)
                 throws AxionException

Throws:

AxionException

Method Detail

getIndexLoader

public IndexLoader getIndexLoader()

Specified by:

getIndexLoader in interface Index

Overrides:

getIndexLoader in class ObjectBTreeIndex

getMinimizationFactor

public int getMinimizationFactor()

createTree

protected ObjectBTree createTree(java.io.File dataDirectory,
                                 java.lang.String name,
                                 int minimizationFactor,
                                 DataType dataType)
                          throws java.io.IOException,
                                 java.lang.ClassNotFoundException

Overrides:

createTree in class ObjectBTreeIndex

Throws:

java.io.IOException

java.lang.ClassNotFoundException

getNullKey

protected java.lang.Object getNullKey()

Overrides:

getNullKey in class ObjectBTreeIndex