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java.lang.Objectjava.util.AbstractCollection
java.util.AbstractList
netx.jnlp.util.WeakList
public class WeakList
This list stores objects automatically using weak references. Objects are added and removed from the list as normal, but may turn to null at any point (ie, indexOf(x) followed by get(x) may return null). The weak references are only removed when the trimToSize method is called so that the indices remain constant otherwise.
Field Summary |
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Fields inherited from class java.util.AbstractList |
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modCount |
Constructor Summary | |
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WeakList()
Create a weak random-access list. |
Method Summary | |
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void |
add(int index,
java.lang.Object element)
Inserts the object at the specified position in the list. |
java.lang.Object |
get(int index)
Returns the object at the specified index, or null if the object has been collected. |
java.util.List |
hardList()
Returns a list of hard references to the objects. |
java.lang.Object |
remove(int index)
Removes the object at the specified position and returns it or returns null if it was already collected. |
java.lang.Object |
set(int index,
java.lang.Object element)
Sets the object at the specified position and returns the previous object at that position or null if it was already collected. |
int |
size()
Returns the size of the list, including already collected objects. |
void |
trimToSize()
Compacts the list by removing references to collected objects. |
Methods inherited from class java.util.AbstractList |
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add, addAll, clear, equals, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, removeRange, subList |
Methods inherited from class java.util.AbstractCollection |
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addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray, toString |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Methods inherited from interface java.util.List |
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addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray |
Constructor Detail |
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public WeakList()
Method Detail |
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public java.lang.Object get(int index)
get
in interface java.util.List
get
in class java.util.AbstractList
public int size()
size
in interface java.util.Collection
size
in interface java.util.List
size
in class java.util.AbstractCollection
public java.lang.Object set(int index, java.lang.Object element)
set
in interface java.util.List
set
in class java.util.AbstractList
public void add(int index, java.lang.Object element)
add
in interface java.util.List
add
in class java.util.AbstractList
public java.lang.Object remove(int index)
remove
in interface java.util.List
remove
in class java.util.AbstractList
public java.util.List hardList()
public void trimToSize()
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