org.apache.ojb.broker.accesslayer.sql
Class SqlPkStatement

java.lang.Object
  org.apache.ojb.broker.accesslayer.sql.SqlPkStatement

All Implemented Interfaces:

SqlStatement

Direct Known Subclasses:

SqlDeleteByPkStatement, SqlExistStatement, SqlInsertStatement, SqlUpdateStatement

public abstract class SqlPkStatement
extends Object
implements SqlStatement

Model simple Statements based on ClassDescriptor and/or PrimaryKey

Version:

$Id: SqlPkStatement.java,v 1.1 2007-08-24 22:17:39 ewestfal Exp $

Author:

Jakob Braeuchi

Field Summary

private WeakReference	m_classDescriptor
private Logger	m_logger

Constructor Summary

SqlPkStatement(ClassDescriptor aCld, Logger aLogger)
Constructor for SqlPkStatement.

Method Summary

protected void	appendTable(ClassDescriptor cld, StringBuffer stmt) append table name
protected void	appendWhereClause(ClassDescriptor cld, boolean useLocking, StringBuffer stmt) Generate a where clause for a prepared Statement.
protected void	appendWhereClause(FieldDescriptor[] fields, StringBuffer stmt) Generate a sql where-clause for the array of fields
protected ClassDescriptor	getClassDescriptor() Returns the classDescriptor.
protected Logger	getLogger() Returns the logger.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ojb.broker.accesslayer.sql.SqlStatement

getStatement

Field Detail

m_classDescriptor

private WeakReference m_classDescriptor

m_logger

private Logger m_logger

Constructor Detail

SqlPkStatement

public SqlPkStatement(ClassDescriptor aCld,
                      Logger aLogger)

Constructor for SqlPkStatement.

Method Detail

appendTable

protected void appendTable(ClassDescriptor cld,
                           StringBuffer stmt)

append table name

getLogger

protected Logger getLogger()

Returns the logger.

Returns:

Logger

getClassDescriptor

protected ClassDescriptor getClassDescriptor()

Returns the classDescriptor.

Returns:

ClassDescriptor

appendWhereClause

protected void appendWhereClause(FieldDescriptor[] fields,
                                 StringBuffer stmt)
                          throws PersistenceBrokerException

Generate a sql where-clause for the array of fields

Parameters:

fields - array containing all columns used in WHERE clause

Throws:

PersistenceBrokerException

appendWhereClause

protected void appendWhereClause(ClassDescriptor cld,
                                 boolean useLocking,
                                 StringBuffer stmt)

Generate a where clause for a prepared Statement. Only primary key and locking fields are used in this where clause

Parameters:

cld - the ClassDescriptor

useLocking - true if locking fields should be included

stmt - the StatementBuffer