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

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

All Implemented Interfaces:

SqlGenerator

public class SqlGeneratorDefaultImpl

extends java.lang.Object

implements SqlGenerator

This Class is responsible for building sql statements Objects fields and their repective values are accessed by Java reflection

Version:

$Id: SqlGeneratorDefaultImpl.java,v 1.21 2004/02/14 19:36:53 brj Exp $

Author:

Thomas Mahler, Ron Gallagher, Randall Burt

Constructor Summary

SqlGeneratorDefaultImpl(Platform pf)
Constructor is protected, use getInstance() to retrieve the singleton instance of this class.

Method Summary

protected java.lang.String	asSQLClause(SelectionCriteria c, ClassDescriptor cld) Answer the SQL-Clause for a SelectionCriteria
java.lang.String	asSQLStatement(Criteria crit, ClassDescriptor cld)
java.lang.String	getDeleteMNStatement(java.lang.String table, java.lang.String[] pkColumns1, java.lang.String[] pkColumns2) generate a DELETE-Statement for M:N indirection table
java.lang.String	getInsertMNStatement(java.lang.String table, java.lang.String[] pkColumns1, java.lang.String[] pkColumns2) generate an INSERT-Statement for M:N indirection table
Platform	getPlatform() Answer the Platform used by the SqlGenerator
java.lang.String	getPreparedDeleteStatement(ClassDescriptor cld) generate a prepared DELETE-Statement for the Class described by cld.
java.lang.String	getPreparedDeleteStatement(Query query, ClassDescriptor cld) generate a prepared DELETE-Statement according to query
java.lang.String	getPreparedInsertStatement(ClassDescriptor cld) generate a prepared INSERT-Statement for the Class described by cld.
java.lang.String	getPreparedSelectByPkStatement(ClassDescriptor cld) generate a prepared SELECT-Statement for the Class described by cld
java.lang.String	getPreparedSelectStatement(Query query, ClassDescriptor cld) generate a select-Statement according to query
java.lang.String	getPreparedUpdateStatement(ClassDescriptor cld) generate a prepared UPDATE-Statement for the Class described by cld
java.lang.String	getSelectMNStatement(java.lang.String table, java.lang.String[] selectColumns, java.lang.String[] columns) generate a SELECT-Statement for M:N indirection table
java.lang.String	getSelectStatementDep(Query query, ClassDescriptor cld) generate a select-Statement according to query

Methods inherited from class java.lang.Object

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

Constructor Detail

SqlGeneratorDefaultImpl

public SqlGeneratorDefaultImpl(Platform pf)

Constructor is protected, use getInstance() to retrieve the singleton instance of this class.

Method Detail

getPreparedDeleteStatement

public java.lang.String getPreparedDeleteStatement(ClassDescriptor cld)

generate a prepared DELETE-Statement for the Class described by cld.

Specified by:

getPreparedDeleteStatement in interface SqlGenerator

Parameters:

cld - the ClassDescriptor

getPreparedInsertStatement

public java.lang.String getPreparedInsertStatement(ClassDescriptor cld)

generate a prepared INSERT-Statement for the Class described by cld.

Specified by:

getPreparedInsertStatement in interface SqlGenerator

Parameters:

cld - the ClassDescriptor

getPreparedSelectByPkStatement

public java.lang.String getPreparedSelectByPkStatement(ClassDescriptor cld)

generate a prepared SELECT-Statement for the Class described by cld

Specified by:

getPreparedSelectByPkStatement in interface SqlGenerator

Parameters:

cld - the ClassDescriptor

getPreparedSelectStatement

public java.lang.String getPreparedSelectStatement(Query query,
                                                   ClassDescriptor cld)

generate a select-Statement according to query

Specified by:

getPreparedSelectStatement in interface SqlGenerator

Parameters:

query - the Query

cld - the ClassDescriptor

getPreparedUpdateStatement

public java.lang.String getPreparedUpdateStatement(ClassDescriptor cld)

generate a prepared UPDATE-Statement for the Class described by cld

Specified by:

getPreparedUpdateStatement in interface SqlGenerator

Parameters:

cld - the ClassDescriptor

getInsertMNStatement

public java.lang.String getInsertMNStatement(java.lang.String table,
                                             java.lang.String[] pkColumns1,
                                             java.lang.String[] pkColumns2)

generate an INSERT-Statement for M:N indirection table

Specified by:

getInsertMNStatement in interface SqlGenerator

Parameters:

table -

pkColumns1 -

pkColumns2 -

Returns:

String

getSelectMNStatement

public java.lang.String getSelectMNStatement(java.lang.String table,
                                             java.lang.String[] selectColumns,
                                             java.lang.String[] columns)

generate a SELECT-Statement for M:N indirection table

Specified by:

getSelectMNStatement in interface SqlGenerator

Parameters:

table - the indirection table

selectColumns - selected columns

columns - for where

getDeleteMNStatement

public java.lang.String getDeleteMNStatement(java.lang.String table,
                                             java.lang.String[] pkColumns1,
                                             java.lang.String[] pkColumns2)

generate a DELETE-Statement for M:N indirection table

Specified by:

getDeleteMNStatement in interface SqlGenerator

Parameters:

table -

pkColumns1 -

pkColumns2 -

Returns:

String

getSelectStatementDep

public java.lang.String getSelectStatementDep(Query query,
                                              ClassDescriptor cld)

generate a select-Statement according to query

Specified by:

getSelectStatementDep in interface SqlGenerator

Parameters:

query - the Query

cld - the ClassDescriptor

asSQLStatement

public java.lang.String asSQLStatement(Criteria crit,
                                       ClassDescriptor cld)

asSQLClause

protected java.lang.String asSQLClause(SelectionCriteria c,
                                       ClassDescriptor cld)

Answer the SQL-Clause for a SelectionCriteria

Parameters:

c - SelectionCriteria

cld - ClassDescriptor

getPreparedDeleteStatement

public java.lang.String getPreparedDeleteStatement(Query query,
                                                   ClassDescriptor cld)

generate a prepared DELETE-Statement according to query

Specified by:

getPreparedDeleteStatement in interface SqlGenerator

Parameters:

query - the Query

cld - the ClassDescriptor

getPlatform

public Platform getPlatform()

Description copied from interface: SqlGenerator

Answer the Platform used by the SqlGenerator

Specified by:

getPlatform in interface SqlGenerator

Returns:

Platform