Package org.openlca.expressions.functions

Class FunctionFactory

java.lang.Object

org.openlca.expressions.functions.FunctionFactory

public class FunctionFactory
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
protected HashMap<String,Class<? extends Expression>>	functions
protected static FunctionFactory	instance

Constructor Summary

Constructors

Constructor	Description
FunctionFactory()

Method Summary

Modifier and Type	Method	Description
Expression	createFunction(String name)
static FunctionFactory	getInstance()
void	registerFunction(String name, Class<? extends Expression> clazz)

Methods inherited from class java.lang.Object

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

Field Details

instance

protected static FunctionFactory instance

functions

protected HashMap<String,Class<? extends Expression>> functions

Constructor Details

FunctionFactory

public FunctionFactory()

Method Details

getInstance

public static FunctionFactory getInstance()

registerFunction

public void registerFunction(String name,
 Class<? extends Expression> clazz)

createFunction

public Expression createFunction(String name)
                          throws Exception

Throws:

Exception