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java.lang.Objectjava.util.AbstractCollection<E>
java.util.AbstractSet
net.ontopia.utils.CompactHashSet
public class CompactHashSet
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 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. |
void |
clear()
Removes all of the elements from this set. |
boolean |
contains(java.lang.Object o)
Returns true if this set contains the specified element. |
void |
dump()
INTERNAL: Used for debugging only. |
boolean |
isEmpty()
Returns true if this set contains no elements. |
java.util.Iterator |
iterator()
Returns an iterator over the elements in this set. |
boolean |
remove(java.lang.Object o)
Removes the specified element from the set. |
int |
size()
Returns the number of elements in this set (its cardinality). |
java.lang.Object[] |
toArray()
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java.lang.Object[] |
toArray(java.lang.Object[] 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 c)
c
- the collection whose elements are to be placed into this set.Method Detail |
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public java.util.Iterator iterator()
iterator
in interface java.lang.Iterable
iterator
in interface java.util.Collection
iterator
in interface java.util.Set
iterator
in class java.util.AbstractCollection
ConcurrentModificationException
public int size()
size
in interface java.util.Collection
size
in interface java.util.Set
size
in class java.util.AbstractCollection
public boolean isEmpty()
isEmpty
in interface java.util.Collection
isEmpty
in interface java.util.Set
isEmpty
in class java.util.AbstractCollection
public boolean contains(java.lang.Object o)
contains
in interface java.util.Collection
contains
in interface java.util.Set
contains
in class java.util.AbstractCollection
o
- element whose presence in this set is to be tested.
public boolean add(java.lang.Object o)
add
in interface java.util.Collection
add
in interface java.util.Set
add
in class java.util.AbstractCollection
o
- element to be added to this set.
public boolean remove(java.lang.Object o)
remove
in interface java.util.Collection
remove
in interface java.util.Set
remove
in class java.util.AbstractCollection
public void clear()
clear
in interface java.util.Collection
clear
in interface java.util.Set
clear
in class java.util.AbstractCollection
public java.lang.Object[] toArray()
toArray
in interface java.util.Collection
toArray
in interface java.util.Set
toArray
in class java.util.AbstractCollection
public java.lang.Object[] toArray(java.lang.Object[] a)
toArray
in interface java.util.Collection
toArray
in interface java.util.Set
toArray
in class java.util.AbstractCollection
public void dump()
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