org.incava.ijdk.util

Class Collect<FromType,ToType>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<E>

java.util.ArrayList<ToType>

org.incava.ijdk.util.Collect<FromType,ToType>

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.lang.Iterable<ToType>, java.util.Collection<ToType>, java.util.List<ToType>, java.util.RandomAccess

public abstract class Collect<FromType,ToType>
extends java.util.ArrayList<ToType>

Collects a collection into a collection. That is, applies quasi-closures to the collection to transform it into a new one.

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

Constructors

Constructor and Description
Collect(java.util.Collection<FromType> c) Creates a new collection, where the condition passes the condition.
Collect(FromType[] ary) Ditto, but for real arrays.

Method Summary

Modifier and Type	Method and Description
abstract ToType	block(FromType obj) Returns the object to add to the collection.
abstract boolean	where(FromType obj) Must be defined to return where the given object satisfies the condition.

Methods inherited from class java.util.ArrayList

add, add, addAll, addAll, clear, clone, contains, ensureCapacity, forEach, get, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, removeIf, removeRange, replaceAll, retainAll, set, size, sort, spliterator, subList, toArray, toArray, trimToSize

Methods inherited from class java.util.AbstractList

equals, hashCode

Methods inherited from class java.util.AbstractCollection

containsAll, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.List

containsAll, equals, hashCode

Methods inherited from interface java.util.Collection

parallelStream, stream

Constructor Detail

Collect

public Collect(java.util.Collection<FromType> c)

Creates a new collection, where the condition passes the condition.

Parameters:

c - The collection from which to build the new collection.

Collect

public Collect(FromType[] ary)

Ditto, but for real arrays.

Method Detail

where

public abstract boolean where(FromType obj)

Must be defined to return where the given object satisfies the condition.

Parameters:

obj - An object from the collection passed to the constructor.

block

public abstract ToType block(FromType obj)

Returns the object to add to the collection.

Parameters:

obj - An object from the collection passed to the constructor.