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java.lang.Objectjava.util.AbstractCollection<E>
java.util.AbstractSet<E>
net.ontopia.utils.CompactHashSet<E>
public class CompactHashSet<E>
INTERNAL: Implements the Set interface more compactly than java.util.HashSet by using a closed hashtable.
Constructor Summary | |
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CompactHashSet()
Constructs a new, empty set. |
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CompactHashSet(java.util.Collection<E> c)
Constructs a new set containing the elements in the specified collection. |
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CompactHashSet(int size)
Constructs a new, empty set. |
Method Summary | ||
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boolean |
add(java.lang.Object o)
Adds the specified element to this set if it is not already present. |
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void |
clear()
Removes all of the elements from this set. |
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boolean |
contains(java.lang.Object o)
Returns true if this set contains the specified element. |
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void |
dump()
INTERNAL: Used for debugging only. |
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boolean |
isEmpty()
Returns true if this set contains no elements. |
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java.util.Iterator<E> |
iterator()
Returns an iterator over the elements in this set. |
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boolean |
remove(java.lang.Object o)
Removes the specified element from the set. |
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int |
size()
Returns the number of elements in this set (its cardinality). |
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java.lang.Object[] |
toArray()
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toArray(T[] a)
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Methods inherited from class java.util.AbstractSet |
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equals, hashCode, removeAll |
Methods inherited from class java.util.AbstractCollection |
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addAll, containsAll, retainAll, toString |
Methods inherited from class java.lang.Object |
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getClass, notify, notifyAll, wait, wait, wait |
Methods inherited from interface java.util.Set |
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addAll, containsAll, retainAll |
Constructor Detail |
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public CompactHashSet()
public CompactHashSet(int size)
public CompactHashSet(java.util.Collection<E> c)
c
- the collection whose elements are to be placed into this set.Method Detail |
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public java.util.Iterator<E> iterator()
iterator
in interface java.lang.Iterable<E>
iterator
in interface java.util.Collection<E>
iterator
in interface java.util.Set<E>
iterator
in class java.util.AbstractCollection<E>
ConcurrentModificationException
public int size()
size
in interface java.util.Collection<E>
size
in interface java.util.Set<E>
size
in class java.util.AbstractCollection<E>
public boolean isEmpty()
isEmpty
in interface java.util.Collection<E>
isEmpty
in interface java.util.Set<E>
isEmpty
in class java.util.AbstractCollection<E>
public boolean contains(java.lang.Object o)
contains
in interface java.util.Collection<E>
contains
in interface java.util.Set<E>
contains
in class java.util.AbstractCollection<E>
o
- element whose presence in this set is to be tested.
public boolean add(java.lang.Object o)
add
in interface java.util.Collection<E>
add
in interface java.util.Set<E>
add
in class java.util.AbstractCollection<E>
o
- element to be added to this set.
public boolean remove(java.lang.Object o)
remove
in interface java.util.Collection<E>
remove
in interface java.util.Set<E>
remove
in class java.util.AbstractCollection<E>
public void clear()
clear
in interface java.util.Collection<E>
clear
in interface java.util.Set<E>
clear
in class java.util.AbstractCollection<E>
public java.lang.Object[] toArray()
toArray
in interface java.util.Collection<E>
toArray
in interface java.util.Set<E>
toArray
in class java.util.AbstractCollection<E>
public <T> T[] toArray(T[] a)
toArray
in interface java.util.Collection<E>
toArray
in interface java.util.Set<E>
toArray
in class java.util.AbstractCollection<E>
public void dump()
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