org.datanucleus.store.rdbms.sql.method
Class MaxFunction

java.lang.Object
  org.datanucleus.store.rdbms.sql.method.AbstractSQLMethod
      org.datanucleus.store.rdbms.sql.method.SimpleOrderableAggregateMethod
          org.datanucleus.store.rdbms.sql.method.MaxFunction

All Implemented Interfaces:

SQLMethod

public class MaxFunction
extends SimpleOrderableAggregateMethod

Expression handler to invoke the SQL MAX aggregation function. For use in evaluating MAX({expr}) where the RDBMS supports this function. Returns an Expression "MAX({orderableExpr})", where the orderable expression is either numeric or temporal

Field Summary

Fields inherited from class org.datanucleus.store.rdbms.sql.method.AbstractSQLMethod

clr, exprFactory, LOCALISER, stmt

Constructor Summary

MaxFunction()

Method Summary

protected String

getFunctionName()

Methods inherited from class org.datanucleus.store.rdbms.sql.method.SimpleOrderableAggregateMethod

getExpression

Methods inherited from class org.datanucleus.store.rdbms.sql.method.AbstractSQLMethod

getMappingForClass, setStatement

Methods inherited from class java.lang.Object

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

Constructor Detail

MaxFunction

public MaxFunction()

Method Detail

getFunctionName

protected String getFunctionName()

Specified by:

getFunctionName in class SimpleOrderableAggregateMethod