Package org.datanucleus.store.rdbms.sql

Class DeleteStatement

java.lang.Object

org.datanucleus.store.rdbms.sql.SQLStatement

org.datanucleus.store.rdbms.sql.DeleteStatement

public class DeleteStatement
extends SQLStatement

SQL DELETE Statement representation. This will create a statement like

 DELETE FROM {tbl}
 WHERE {boolExpr} [AND|OR] {boolExpr} ...
 

Any joins are converted into a WHERE clause like

 EXISTS (SELECT * FROM OTHER_TBL ...)
 

Field Summary

Fields inherited from class org.datanucleus.store.rdbms.sql.SQLStatement

candidateClassName, clr, EXTENSION_LOCK_FOR_UPDATE, EXTENSION_LOCK_FOR_UPDATE_NOWAIT, EXTENSION_SQL_TABLE_NAMING_STRATEGY, extensions, joins, namer, parent, primaryTable, queryGenerator, rdbmsMgr, requiresJoinReorder, sql, tableGroups, tableNamerByName, tables, where

Constructor Summary

Constructors

Constructor	Description
DeleteStatement(RDBMSStoreManager rdbmsMgr, Table table, DatastoreIdentifier alias, String tableGroupName, Map<String,Object> extensions)	Constructor for a DELETE statement.

Method Summary

Modifier and Type	Method	Description
SQLText	getSQLText()

Methods inherited from class org.datanucleus.store.rdbms.sql.SQLStatement

addAndConditionToJoinForTable, addExtension, addJoin, getCandidateClassName, getClassLoaderResolver, getDatastoreAdapter, getJoinConditionForJoin, getJoinForTable, getJoinTypeForTable, getNumberOfTableGroups, getNumberOfTables, getParentStatement, getPrimaryTable, getQueryGenerator, getRDBMSManager, getSQLExpressionFactory, getTable, getTable, getTableForDatastoreContainer, getTableGroup, getTableNamer, getValueForExtension, invalidateStatement, isChildStatementOf, join, join, join, join, join, join, log, putSQLTableInGroup, removeCrossJoin, setCandidateClassName, setClassLoaderResolver, setQueryGenerator, whereAnd, whereOr

Methods inherited from class java.lang.Object

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

Constructor Detail

DeleteStatement

public DeleteStatement(RDBMSStoreManager rdbmsMgr,
                       Table table,
                       DatastoreIdentifier alias,
                       String tableGroupName,
                       Map<String,Object> extensions)

Constructor for a DELETE statement.

Parameters:

rdbmsMgr - Store Manager

table - The primary table to DELETE

alias - Alias for the primary table

tableGroupName - Group name for the primary table

extensions - Any extensions (optional)

Method Detail

getSQLText

public SQLText getSQLText()

Overrides:

getSQLText in class SQLStatement