org.datanucleus.store.rdbms.sql.method

Class CurrentTimestampFunction

java.lang.Object

org.datanucleus.store.rdbms.sql.method.CurrentTimestampFunction

All Implemented Interfaces:

SQLMethod

public class CurrentTimestampFunction
extends Object
implements SQLMethod

Expression handler to invoke the SQL CURRENT_TIMESTAMP function. For use in evaluating CURRENT_TIMESTAMP where the RDBMS supports this function. Returns a TemporalExpression "CURRENT_TIMESTAMP".

Constructor Summary

Constructors

Constructor and Description
CurrentTimestampFunction()

Method Summary

Modifier and Type	Method and Description
protected Class	getClassForMapping()
SQLExpression	getExpression(SQLStatement stmt, SQLExpression expr, List 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

CurrentTimestampFunction

public CurrentTimestampFunction()

Method Detail

getFunctionName

protected String getFunctionName()

getExpression

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

Description copied from interface: SQLMethod

Return the expression for this SQL function.

Specified by:

getExpression in interface SQLMethod

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

getClassForMapping

protected Class getClassForMapping()