Package net.sf.basedb.util.jep.convert

Class LogarithmConverter

java.lang.Object

net.sf.basedb.util.jep.convert.AbstractJepConversionFunction<Node>

net.sf.basedb.util.jep.convert.LogarithmConverter

All Implemented Interfaces:

JepConversionFunction<Node>

public class LogarithmConverter
extends AbstractJepConversionFunction<Node>

Convert Logarithm function to a Query API Expression.

Version:

2.4

Author:

nicklas

Last modified

$Date: 2008-09-11 22:08:14 +0200 (to, 11 sep 2008) $

Constructor Summary

Constructors

Constructor	Description
LogarithmConverter()

Method Summary

Modifier and Type	Method	Description
String	getDescription()	Get a short description of the function or operator
String	getName()	Get the name of the function or the symbol of the operator
boolean	isFunction()	If this converter is a built-in function.
Expression	toExpression(Node node)	Convert to expression by calling Expressions.log10(Expression).

Methods inherited from class net.sf.basedb.util.jep.convert.AbstractJepConversionFunction

isOperator, toRestriction

Methods inherited from class java.lang.Object

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

Constructor Details

LogarithmConverter

public LogarithmConverter()

Method Details

isFunction

public boolean isFunction()

Description copied from interface: JepConversionFunction

If this converter is a built-in function. Built-in functions are automatically put in the enumeration return by Jep.getFunctions().

Specified by:

isFunction in interface JepConversionFunction<Node>

Overrides:

isFunction in class AbstractJepConversionFunction<Node>

Returns:

Always FALSE

getName

public String getName()

Description copied from interface: JepConversionFunction

Get the name of the function or the symbol of the operator

Specified by:

getName in interface JepConversionFunction<Node>

Overrides:

getName in class AbstractJepConversionFunction<Node>

Returns:

The string 'log'

getDescription

public String getDescription()

Description copied from interface: JepConversionFunction

Get a short description of the function or operator

Specified by:

getDescription in interface JepConversionFunction<Node>

Overrides:

getDescription in class AbstractJepConversionFunction<Node>

Returns:

Always null

toExpression

public Expression toExpression(Node node)

Convert to expression by calling Expressions.log10(Expression).

Specified by:

toExpression in interface JepConversionFunction<Node>

Overrides:

toExpression in class AbstractJepConversionFunction<Node>

Parameters:

node - The object to convert

Returns:

An expression or null