org.castor.cpa.persistence.sql.query.visitor
Class PostgreSQLQueryVisitor

java.lang.Object
  org.castor.cpa.persistence.sql.query.visitor.DefaultQueryVisitor
      org.castor.cpa.persistence.sql.query.visitor.DefaultDoubleQuoteNameQueryVisitor
          org.castor.cpa.persistence.sql.query.visitor.PostgreSQLQueryVisitor

All Implemented Interfaces:

Visitor

public final class PostgreSQLQueryVisitor
extends DefaultDoubleQuoteNameQueryVisitor

Visitor defining special behavior of query building for PostgreSql database.

Version:

$Revision: 8469 $ $Date: 2006-04-25 15:08:23 -0600 (Tue, 25 Apr 2006) $

Author:

Dennis Butterstein

Field Summary

Fields inherited from class org.castor.cpa.persistence.sql.query.visitor.DefaultQueryVisitor

_queryString, LOG

Constructor Summary

PostgreSQLQueryVisitor()

Method Summary

protected void	handleLock(Select select) Method appending lock clauses as "FOR UPDATE" when needed.
protected String	quoteName(String name) Method returning prepared string to match requirements of specific databases if needed.

Methods inherited from class org.castor.cpa.persistence.sql.query.visitor.DefaultDoubleQuoteNameQueryVisitor

doubleQuoteName

Methods inherited from class org.castor.cpa.persistence.sql.query.visitor.DefaultQueryVisitor

addTableNames, getSequenceNextValString, handleJoinConstruction, toString, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class java.lang.Object

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

Constructor Detail

PostgreSQLQueryVisitor

public PostgreSQLQueryVisitor()

Method Detail

quoteName

protected String quoteName(String name)

Method returning prepared string to match requirements of specific databases if needed.

Overrides:

quoteName in class DefaultQueryVisitor

Parameters:

name - String to be prepared.

Returns:

Prepared string.

handleLock

protected void handleLock(Select select)

Method appending lock clauses as "FOR UPDATE" when needed.

Overrides:

handleLock in class DefaultQueryVisitor

Parameters:

select - Select to check if locking-clauses have to be appended or not.