org.imemex.functions
Class AbstractFunction

java.lang.Object
  org.imemex.functions.AbstractFunction

All Implemented Interfaces:

Function

Direct Known Subclasses:

BasicSystemFunctions.Add, BasicSystemFunctions.AddDate, BasicSystemFunctions.Divide, BasicSystemFunctions.Multiply, BasicSystemFunctions.NthRoot, BasicSystemFunctions.StringSimilarity, BasicSystemFunctions.Substract, BasicSystemFunctions.SubstractDate, BasicSystemFunctions.Today, BasicSystemFunctions.TodayN, BasicSystemFunctions.Year, BasicSystemFunctions.Yesterday, LineageFunction

public abstract class AbstractFunction
extends java.lang.Object
implements Function

Version:

1.0

Author:

ogirard

Nested Class Summary

Nested classes/interfaces inherited from interface org.imemex.functions.Function

Function.FuncType

Constructor Summary

AbstractFunction(Function.FuncType type, java.lang.String name, java.lang.Class<?> retType, java.util.List<java.lang.Class<?>> argTypes)

Method Summary

boolean	checkSignature(java.lang.String name, java.lang.Class<?> retType, java.util.List<java.lang.Class<?>> argTypes) checks if the signature of this function matches
abstract java.lang.Object	execute(java.util.List<java.lang.Object> args) executes this function
java.util.List<java.lang.Class<?>>	getArgTypes() gets ordered types of arguments
java.lang.String	getID() gets unique id of this function
java.lang.String	getName() gets name of this function
java.lang.Class<?>	getReturnType() gets type of of return value
Function.FuncType	getType() gets type of this function

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractFunction

public AbstractFunction(Function.FuncType type,
                        java.lang.String name,
                        java.lang.Class<?> retType,
                        java.util.List<java.lang.Class<?>> argTypes)

Method Detail

execute

public abstract java.lang.Object execute(java.util.List<java.lang.Object> args)
                                  throws InvalidArgumentsException

Description copied from interface: Function

executes this function

Specified by:

execute in interface Function

Parameters:

args - list of arguments (order & type have to match!)

Returns:

result of this function

Throws:

InvalidArgumentsException - if wrong argument types, values or nr of args incorrect

checkSignature

public boolean checkSignature(java.lang.String name,
                              java.lang.Class<?> retType,
                              java.util.List<java.lang.Class<?>> argTypes)

Description copied from interface: Function

checks if the signature of this function matches

Specified by:

checkSignature in interface Function

Returns:

getArgTypes

public java.util.List<java.lang.Class<?>> getArgTypes()

Description copied from interface: Function

gets ordered types of arguments

Specified by:

getArgTypes in interface Function

Returns:

getID

public final java.lang.String getID()

Description copied from interface: Function

gets unique id of this function

Specified by:

getID in interface Function

Returns:

getName

public java.lang.String getName()

Description copied from interface: Function

gets name of this function

Specified by:

getName in interface Function

Returns:

name as String

getReturnType

public java.lang.Class<?> getReturnType()

Description copied from interface: Function

gets type of of return value

Specified by:

getReturnType in interface Function

Returns:

getType

public Function.FuncType getType()

Description copied from interface: Function

gets type of this function

Specified by:

getType in interface Function

Returns:

type

See Also:

Function.FuncType