Package org.datanucleus.store.rdbms.sql.method

Class StringToLowerMethod

java.lang.Object

org.datanucleus.store.rdbms.sql.method.SimpleStringMethod

org.datanucleus.store.rdbms.sql.method.StringToLowerMethod

All Implemented Interfaces:

SQLMethod

public class StringToLowerMethod
extends SimpleStringMethod

Expression handler to invoke the SQL LOWER function. For use in evaluating StringExpression.toLowerCase() where the RDBMS supports this function. Returns a StringExpression "LOWER({stringExpr})".

Constructor Summary

Constructors

Constructor	Description
StringToLowerMethod()

Method Summary

Modifier and Type	Method	Description
SQLExpression	getExpression(SQLStatement stmt, SQLExpression expr, List<SQLExpression> args)	Return the expression for this SQL function.
protected String	getFunctionName()

Methods inherited from class java.lang.Object

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

Constructor Detail

StringToLowerMethod

public StringToLowerMethod()

Method Detail

getFunctionName

protected String getFunctionName()

Specified by:

getFunctionName in class SimpleStringMethod

getExpression

public SQLExpression getExpression(SQLStatement stmt,
                                   SQLExpression expr,
                                   List<SQLExpression> args)

Description copied from interface: SQLMethod

Return the expression for this SQL function.

Specified by:

getExpression in interface SQLMethod

Overrides:

getExpression in class SimpleStringMethod

Parameters:

stmt - SQLStatement that this expression is for

expr - The expression that it is invoked on

args - Arguments passed in

Returns:

The SQL expression using the SQL function