org.castor.cpa.persistence.sql.driver
Class ProgressQueryExpression

java.lang.Object
  org.castor.cpa.persistence.sql.driver.JDBCQueryExpression
      org.castor.cpa.persistence.sql.driver.ProgressQueryExpression

All Implemented Interfaces:

QueryExpression

public final class ProgressQueryExpression
extends JDBCQueryExpression

QueryExpression for Progress RDBMS.

Version:

$Revision: 5951 $ $Date: 2004-09-08 03:37:54 -0600 (Wed, 08 Sep 2004) $

Author:

Werner Guttmann

Field Summary

Fields inherited from class org.castor.cpa.persistence.sql.driver.JDBCQueryExpression

_dbInfo, _distinct, _factory, _joins, _limit, _offset, _order, _select, _tables

Fields inherited from interface org.exolab.castor.persist.spi.QueryExpression

OP_BETWEEN, OP_BETWEEN_AND, OP_EQUALS, OP_GREATER, OP_GREATER_EQUALS, OP_LESS, OP_LESS_EQUALS, OP_LIKE, OP_NOT_EQUALS, OP_NOT_LIKE

Constructor Summary

ProgressQueryExpression(PersistenceFactory factory)
Creates an instance of this class.

Method Summary

String	getStatement(boolean lock) Creates a SQL statement.
boolean	isLimitClauseSupported() Provides a default implementation of QueryExpression.isLimitClauseSupported().

Methods inherited from class org.castor.cpa.persistence.sql.driver.JDBCQueryExpression

addColumn, addCondition, addInnerJoin, addLimitClause, addOffsetClause, addOrderClause, addOuterJoin, addParameter, addSelect, addTable, addWhereClause, addWhereClause, clone, encodeColumn, getColumnList, getStandardStatement, isOffsetClauseSupported, setDbMetaInfo, setDistinct, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ProgressQueryExpression

public ProgressQueryExpression(PersistenceFactory factory)

Creates an instance of this class.

Parameters:

factory - The persistence factory to be assigned against.

Method Detail

getStatement

public String getStatement(boolean lock)

Description copied from class: JDBCQueryExpression

Creates a SQL statement. In general, for a RDBMS/JDBC driver with a full support of the SQL standard/JDBC specification, this will return a valid SQL statement. For some features, a particular RDBMS might indicate that it does not support this feature by throwing a SyntaxNotSupportedException.

Specified by:

getStatement in interface QueryExpression

Overrides:

getStatement in class JDBCQueryExpression

Parameters:

lock - True if a write lock is required

Returns:

The SQL statement

See Also:

QueryExpression.getStatement(boolean)

isLimitClauseSupported

public boolean isLimitClauseSupported()

Description copied from class: JDBCQueryExpression

Provides a default implementation of QueryExpression.isLimitClauseSupported().

Specified by:

isLimitClauseSupported in interface QueryExpression

Overrides:

isLimitClauseSupported in class JDBCQueryExpression

Returns:

false to indicate that this feature is not supported by default.

See Also:

QueryExpression.isLimitClauseSupported()