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org.codehaus.groovy.grails.web.binding
[Java] Class ListOrderedSet

java.lang.Object
  org.apache.commons.collections.collection.AbstractCollectionDecorator
      org.apache.commons.collections.set.AbstractSetDecorator
          org.apache.commons.collections.set.AbstractSerializableSetDecorator
              org.codehaus.groovy.grails.web.binding.ListOrderedSet
All Implemented Interfaces:
java.util.List
@SuppressWarnings({"rawtypes", "unchecked"})
public class ListOrderedSet
extends org.apache.commons.collections.set.AbstractSerializableSetDecorator

Forked from Apache Commons Collections' implementation of ListOrderedSet. This one actually implements the List interface. Yes we are away of the warnings in the javadoc about problems with incompatibilities between the List and Set interfaces, however this class is designed to used internally only for data binding and not by end users.

Authors:
Stephen Colebourne
Henning P. Schmiedehausen
Graeme Rocher

Field Summary
protected java.util.List setOrder

Internal list to hold the sequence of objects
 
Constructor Summary
ListOrderedSet()

Constructs a new empty ListOrderedSet using a HashSet and an ArrayList internally.
protected ListOrderedSet(java.util.Set set)

Constructor that wraps (not copies).
protected ListOrderedSet(java.util.Set set, java.util.List list)

Constructor that wraps (not copies) the Set and specifies the list to use.
 
Method Summary
boolean add(java.lang.Object object)

void add(int index, java.lang.Object object)

boolean addAll(java.util.Collection coll)

boolean addAll(int index, java.util.Collection coll)

java.util.List asList()

Gets an unmodifiable view of the order of the Set.
void clear()

static ListOrderedSet decorate(java.util.Set set)

Factory method to create an ordered set.
static ListOrderedSet decorate(java.util.List list)

Factory method to create an ordered set using the supplied list to retain order.
java.lang.Object get(int index)

int indexOf(java.lang.Object object)

java.util.Iterator iterator()

int lastIndexOf(java.lang.Object o)

java.util.ListIterator listIterator()

java.util.ListIterator listIterator(int index)

boolean remove(java.lang.Object object)

java.lang.Object remove(int index)

boolean removeAll(java.util.Collection coll)

boolean retainAll(java.util.Collection coll)

java.lang.Object set(int index, java.lang.Object element)

java.util.List subList(int fromIndex, int toIndex)

java.lang.Object[] toArray()

java.lang.Object[] toArray(java.lang.Object[] a)

java.lang.String toString()

Uses the underlying List's toString so that order is achieved.

 
Methods inherited from class org.apache.commons.collections.set.AbstractSerializableSetDecorator
org.apache.commons.collections.set.AbstractSerializableSetDecorator#containsAll(java.util.Collection), org.apache.commons.collections.set.AbstractSerializableSetDecorator#removeAll(java.util.Collection), org.apache.commons.collections.set.AbstractSerializableSetDecorator#retainAll(java.util.Collection), org.apache.commons.collections.set.AbstractSerializableSetDecorator#add(java.lang.Object), org.apache.commons.collections.set.AbstractSerializableSetDecorator#remove(java.lang.Object), org.apache.commons.collections.set.AbstractSerializableSetDecorator#equals(java.lang.Object), org.apache.commons.collections.set.AbstractSerializableSetDecorator#toString(), org.apache.commons.collections.set.AbstractSerializableSetDecorator#hashCode(), org.apache.commons.collections.set.AbstractSerializableSetDecorator#clear(), org.apache.commons.collections.set.AbstractSerializableSetDecorator#isEmpty(), org.apache.commons.collections.set.AbstractSerializableSetDecorator#contains(java.lang.Object), org.apache.commons.collections.set.AbstractSerializableSetDecorator#size(), org.apache.commons.collections.set.AbstractSerializableSetDecorator#toArray(), org.apache.commons.collections.set.AbstractSerializableSetDecorator#toArray([Ljava.lang.Object;), org.apache.commons.collections.set.AbstractSerializableSetDecorator#addAll(java.util.Collection), org.apache.commons.collections.set.AbstractSerializableSetDecorator#iterator(), org.apache.commons.collections.set.AbstractSerializableSetDecorator#wait(), org.apache.commons.collections.set.AbstractSerializableSetDecorator#wait(long, int), org.apache.commons.collections.set.AbstractSerializableSetDecorator#wait(long), org.apache.commons.collections.set.AbstractSerializableSetDecorator#getClass(), org.apache.commons.collections.set.AbstractSerializableSetDecorator#notify(), org.apache.commons.collections.set.AbstractSerializableSetDecorator#notifyAll()
 
Methods inherited from class org.apache.commons.collections.set.AbstractSetDecorator
org.apache.commons.collections.set.AbstractSetDecorator#containsAll(java.util.Collection), org.apache.commons.collections.set.AbstractSetDecorator#removeAll(java.util.Collection), org.apache.commons.collections.set.AbstractSetDecorator#retainAll(java.util.Collection), org.apache.commons.collections.set.AbstractSetDecorator#add(java.lang.Object), org.apache.commons.collections.set.AbstractSetDecorator#remove(java.lang.Object), org.apache.commons.collections.set.AbstractSetDecorator#equals(java.lang.Object), org.apache.commons.collections.set.AbstractSetDecorator#toString(), org.apache.commons.collections.set.AbstractSetDecorator#hashCode(), org.apache.commons.collections.set.AbstractSetDecorator#clear(), org.apache.commons.collections.set.AbstractSetDecorator#isEmpty(), org.apache.commons.collections.set.AbstractSetDecorator#contains(java.lang.Object), org.apache.commons.collections.set.AbstractSetDecorator#size(), org.apache.commons.collections.set.AbstractSetDecorator#toArray(), org.apache.commons.collections.set.AbstractSetDecorator#toArray([Ljava.lang.Object;), org.apache.commons.collections.set.AbstractSetDecorator#addAll(java.util.Collection), org.apache.commons.collections.set.AbstractSetDecorator#iterator(), org.apache.commons.collections.set.AbstractSetDecorator#wait(), org.apache.commons.collections.set.AbstractSetDecorator#wait(long, int), org.apache.commons.collections.set.AbstractSetDecorator#wait(long), org.apache.commons.collections.set.AbstractSetDecorator#getClass(), org.apache.commons.collections.set.AbstractSetDecorator#notify(), org.apache.commons.collections.set.AbstractSetDecorator#notifyAll()
 

Field Detail

setOrder

protected final java.util.List setOrder
Internal list to hold the sequence of objects

 
Constructor Detail

ListOrderedSet

public ListOrderedSet()
Constructs a new empty ListOrderedSet using a HashSet and an ArrayList internally.
Since:
Commons Collections 3.1

ListOrderedSet

protected ListOrderedSet(java.util.Set set)
Constructor that wraps (not copies).
throws:
IllegalArgumentException if set is null
Parameters:
set - the set to decorate, must not be null

ListOrderedSet

protected ListOrderedSet(java.util.Set set, java.util.List list)
Constructor that wraps (not copies) the Set and specifies the list to use. The set and list must both be correctly initialised to the same elements.
throws:
IllegalArgumentException if set or list is null
Parameters:
set - the set to decorate, must not be null
list - the list to decorate, must not be null

 
Method Detail

add

// re-adding doesn't change order
public boolean add(java.lang.Object object)

add

public void add(int index, java.lang.Object object)

addAll

result = result | add(object);
public boolean addAll(java.util.Collection coll)

addAll

public boolean addAll(int index, java.util.Collection coll)

asList

public java.util.List asList()
Gets an unmodifiable view of the order of the Set.
Returns:
an unmodifiable list view

clear

setOrder.clear();
public void clear()

decorate

public static ListOrderedSet decorate(java.util.Set set)
Factory method to create an ordered set. An ArrayList is used to retain order.
throws:
IllegalArgumentException if set is null
Parameters:
set - the set to decorate, must not be null

decorate

public static ListOrderedSet decorate(java.util.List list)
Factory method to create an ordered set using the supplied list to retain order. A HashSet is used for the set behaviour.
throws:
IllegalArgumentException if list is null
Parameters:
list - the list to decorate, must not be null

get

public java.lang.Object get(int index)

indexOf

public int indexOf(java.lang.Object object)

iterator

}
public java.util.Iterator iterator()

lastIndexOf

public int lastIndexOf(java.lang.Object o)

listIterator

public java.util.ListIterator listIterator()

listIterator

public java.util.ListIterator listIterator(int index)

remove

}
public boolean remove(java.lang.Object object)

remove

public java.lang.Object remove(int index)

removeAll

result = result | remove(object);
public boolean removeAll(java.util.Collection coll)

retainAll

}
public boolean retainAll(java.util.Collection coll)

set

public java.lang.Object set(int index, java.lang.Object element)

subList

public java.util.List subList(int fromIndex, int toIndex)

toArray

@Override
public java.lang.Object[] toArray()

toArray

//-----------------------------------------------------------------------
public java.lang.Object[] toArray(java.lang.Object[] a)

toString

* Internal iterator handle remove.
public java.lang.String toString()
Uses the underlying List's toString so that order is achieved. This means that the decorated Set's toString is not used, so any custom toStrings will be ignored.

 

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