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org.apache.derby.impl.sql.execute
Class BasicSortObserver  

java.lang.Object
  org.apache.derby.impl.sql.execute.BasicSortObserver

All Implemented Interfaces:

org.apache.derby.iapi.store.access.SortObserver

Direct Known Subclasses:

AggregateSortObserver, UniqueIndexSortObserver

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public class BasicSortObserver

extends java.lang.Object

implements org.apache.derby.iapi.store.access.SortObserver

This is the most basic sort observer. It handles distinct sorts and non-distinct sorts.

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Field Summary
protected  boolean	distinct
protected  boolean	doClone
private  org.apache.derby.iapi.sql.execute.ExecRow	execRow
private  boolean	reuseWrappers
private  java.util.Vector	vector

 

Constructor Summary

BasicSortObserver(boolean doClone, boolean distinct, org.apache.derby.iapi.sql.execute.ExecRow execRow, boolean reuseWrappers)           Simple constructor

 

Method Summary
void	addToFreeList(org.apache.derby.iapi.types.DataValueDescriptor[] objectArray, int maxFreeListSize)
org.apache.derby.iapi.types.DataValueDescriptor[]	getArrayClone()
private  org.apache.derby.iapi.types.DataValueDescriptor[]	getClone(org.apache.derby.iapi.types.DataValueDescriptor[] origArray)
org.apache.derby.iapi.types.DataValueDescriptor[]	insertDuplicateKey(org.apache.derby.iapi.types.DataValueDescriptor[] insertRow, org.apache.derby.iapi.types.DataValueDescriptor[] existingRow)           Called prior to inserting a duplicate sort key.
org.apache.derby.iapi.types.DataValueDescriptor[]	insertNonDuplicateKey(org.apache.derby.iapi.types.DataValueDescriptor[] insertRow)           Called prior to inserting a distinct sort key.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

doClone

protected boolean doClone

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distinct

protected boolean distinct

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reuseWrappers

private boolean reuseWrappers

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execRow

private org.apache.derby.iapi.sql.execute.ExecRow execRow

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vector

private java.util.Vector vector

Constructor Detail

BasicSortObserver

public BasicSortObserver(boolean doClone,
                         boolean distinct,
                         org.apache.derby.iapi.sql.execute.ExecRow execRow,
                         boolean reuseWrappers)

Simple constructor

Method Detail

insertNonDuplicateKey

public org.apache.derby.iapi.types.DataValueDescriptor[] insertNonDuplicateKey(org.apache.derby.iapi.types.DataValueDescriptor[] insertRow)
                                                                        throws org.apache.derby.iapi.error.StandardException

Called prior to inserting a distinct sort key.

Specified by:

insertNonDuplicateKey in interface org.apache.derby.iapi.store.access.SortObserver

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insertDuplicateKey

public org.apache.derby.iapi.types.DataValueDescriptor[] insertDuplicateKey(org.apache.derby.iapi.types.DataValueDescriptor[] insertRow,
                                                                            org.apache.derby.iapi.types.DataValueDescriptor[] existingRow)
                                                                     throws org.apache.derby.iapi.error.StandardException

Called prior to inserting a duplicate sort key.

Specified by:

insertDuplicateKey in interface org.apache.derby.iapi.store.access.SortObserver

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addToFreeList

public void addToFreeList(org.apache.derby.iapi.types.DataValueDescriptor[] objectArray,
                          int maxFreeListSize)

Specified by:

addToFreeList in interface org.apache.derby.iapi.store.access.SortObserver

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getArrayClone

public org.apache.derby.iapi.types.DataValueDescriptor[] getArrayClone()
                                                                throws org.apache.derby.iapi.error.StandardException

Specified by:

getArrayClone in interface org.apache.derby.iapi.store.access.SortObserver

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getClone

private org.apache.derby.iapi.types.DataValueDescriptor[] getClone(org.apache.derby.iapi.types.DataValueDescriptor[] origArray)

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> derby >> impl >> sql >> [ execute overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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