Package org.pipservices3.expressions.calculator.functions

Class FunctionCollection

java.lang.Object

org.pipservices3.expressions.calculator.functions.FunctionCollection

All Implemented Interfaces:

IFunctionCollection

Direct Known Subclasses:

DefaultFunctionCollection

public class FunctionCollection
extends Object
implements IFunctionCollection

Implements a functions list.

Constructor Summary

Constructors

Constructor	Description
FunctionCollection()

Method Summary

Modifier and Type	Method	Description
void	add(IFunction func)	Adds a new function to the collection.
void	clear()	Clears the collection.
IFunction	findByName(String name)	Finds function in the list by it's name.
int	findIndexByName(String name)	Finds function index in the list by it's name.
IFunction	get(int index)	Get a function by its index.
List<IFunction>	getAll()	Get all functions stores in the collection
int	length()	Gets a number of functions stored in the collection.
void	remove(int index)	Removes a function by its index.
void	removeByName(String name)	Removes function by it's name.

Methods inherited from class java.lang.Object

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

Constructor Details

FunctionCollection

public FunctionCollection()

Method Details

add

public void add(IFunction func)

Adds a new function to the collection.

Specified by:

add in interface IFunctionCollection

Parameters:

func - a function to be added.

length

public int length()

Gets a number of functions stored in the collection.

Specified by:

length in interface IFunctionCollection

Returns:

a number of stored functions.

get

public IFunction get(int index)

Get a function by its index.

Specified by:

get in interface IFunctionCollection

Parameters:

index - a function index.

Returns:

a retrieved function.

getAll

public List<IFunction> getAll()

Get all functions stores in the collection

Specified by:

getAll in interface IFunctionCollection

Returns:

a list with functions.

findIndexByName

public int findIndexByName(String name)

Finds function index in the list by it's name.

Specified by:

findIndexByName in interface IFunctionCollection

Parameters:

name - The function name to be found.

Returns:

Function index in the list or -1 if function was not found.

findByName

public IFunction findByName(String name)

Finds function in the list by it's name.

Specified by:

findByName in interface IFunctionCollection

Parameters:

name - The function name to be found.

Returns:

A function or null if function was not found.

remove

public void remove(int index)

Removes a function by its index.

Specified by:

remove in interface IFunctionCollection

Parameters:

index - a index of the function to be removed.

removeByName

public void removeByName(String name)

Removes function by it's name.

Specified by:

removeByName in interface IFunctionCollection

Parameters:

name - The function name to be removed.

clear

public void clear()

Clears the collection.

Specified by:

clear in interface IFunctionCollection