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

java.lang.Object
  extended by org.datanucleus.store.rdbms.sql.method.AbstractSQLMethod
      extended by org.datanucleus.store.rdbms.sql.method.SimpleNumericMethod
          extended by org.datanucleus.store.rdbms.sql.method.LogFunction
All Implemented Interfaces:
SQLMethod

public class LogFunction
extends SimpleNumericMethod

Expression handler to invoke the SQL LOG function. For use in evaluating LOG({expr}) where the RDBMS supports this function. Returns a NumericExpression "LOG({numericExpr})".


Field Summary
 
Fields inherited from class org.datanucleus.store.rdbms.sql.method.AbstractSQLMethod
clr, exprFactory, LOCALISER, stmt
 
Constructor Summary
LogFunction()
           
 
Method Summary
protected  java.lang.Class getClassForMapping()
           
protected  java.lang.String getFunctionName()
           
 
Methods inherited from class org.datanucleus.store.rdbms.sql.method.SimpleNumericMethod
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

LogFunction

public LogFunction()
Method Detail

getFunctionName

protected java.lang.String getFunctionName()
Specified by:
getFunctionName in class SimpleNumericMethod

getClassForMapping

protected java.lang.Class getClassForMapping()
Specified by:
getClassForMapping in class SimpleNumericMethod


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