org.apache.ojb.broker.platforms

Class PlatformDerbyImpl

java.lang.Object

org.apache.ojb.broker.platforms.PlatformDefaultImpl

org.apache.ojb.broker.platforms.PlatformDerbyImpl

All Implemented Interfaces:

JoinSyntaxTypes, Platform

public class PlatformDerbyImpl
extends PlatformDefaultImpl

This class defines specific behavior for the Derby platform.

Field Summary

Fields inherited from interface org.apache.ojb.broker.accesslayer.JoinSyntaxTypes

ORACLE_JOIN_SYNTAX, SQL92_JOIN_SYNTAX, SQL92_NOPAREN_JOIN_SYNTAX, SYBASE_JOIN_SYNTAX

Constructor Summary

Constructors

Constructor and Description
PlatformDerbyImpl()

Method Summary

Methods

Modifier and Type	Method and Description
byte	getJoinSyntaxType() Get join syntax type for this RDBMS - one on of the constants from JoinSyntaxType interface
java.lang.String	getLastInsertIdentityQuery(java.lang.String tableName) If database supports native key generation via identity column, this method should return the sql-query to obtain the last generated id.
void	setObjectForStatement(java.sql.PreparedStatement ps, int index, java.lang.Object value, int jdbcType) Called to let the Platform implementation perform any JDBC type-specific operations needed by the driver when binding positional parameters for a PreparedStatement.
boolean	supportsMultiColumnCountDistinct() Whether the platform supports a COUNT DISTINCT across multiple columns.

Methods inherited from class org.apache.ojb.broker.platforms.PlatformDefaultImpl

addBatch, addPagingSql, afterStatementClose, afterStatementCreate, beforeBatch, beforeStatementClose, bindPagingParameters, bindPagingParametersFirst, changeAutoCommitState, concatenate, createSequenceQuery, createSequenceQuery, dropSequenceQuery, executeBatch, getEscapeClause, initializeJdbcConnection, nextSequenceQuery, prepareNextValProcedureStatement, registerOutResultSet, setNullForStatement, supportsBatchOperations, supportsPaging, useCountForResultsetSize

Methods inherited from class java.lang.Object

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

Constructor Detail

PlatformDerbyImpl

public PlatformDerbyImpl()

Method Detail

getJoinSyntaxType

public byte getJoinSyntaxType()

Get join syntax type for this RDBMS - one on of the constants from JoinSyntaxType interface

Specified by:

getJoinSyntaxType in interface Platform

Overrides:

getJoinSyntaxType in class PlatformDefaultImpl

See Also:

Platform.getJoinSyntaxType()

supportsMultiColumnCountDistinct

public boolean supportsMultiColumnCountDistinct()

Whether the platform supports a COUNT DISTINCT across multiple columns.

Specified by:

supportsMultiColumnCountDistinct in interface Platform

Overrides:

supportsMultiColumnCountDistinct in class PlatformDefaultImpl

Returns:

true if it is supported

setObjectForStatement

public void setObjectForStatement(java.sql.PreparedStatement ps,
                         int index,
                         java.lang.Object value,
                         int jdbcType)
                           throws java.sql.SQLException

Called to let the Platform implementation perform any JDBC type-specific operations needed by the driver when binding positional parameters for a PreparedStatement.

Specified by:

setObjectForStatement in interface Platform

Overrides:

setObjectForStatement in class PlatformDefaultImpl

Throws:

java.sql.SQLException

getLastInsertIdentityQuery

public java.lang.String getLastInsertIdentityQuery(java.lang.String tableName)

If database supports native key generation via identity column, this method should return the sql-query to obtain the last generated id.

Specified by:

getLastInsertIdentityQuery in interface Platform

Overrides:

getLastInsertIdentityQuery in class PlatformDefaultImpl