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java.lang.Object java.util.AbstractCollection<E> java.util.AbstractSet<E> jodd.util.collection.SetMapAdapter<E>
public abstract class SetMapAdapter<E>
Map adapter for a set provides an easy way to have a Set from various map implementations.
Field Summary | |
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protected java.util.Map<E,java.lang.Object> |
map
|
Constructor Summary | |
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protected |
SetMapAdapter(java.util.Map<E,java.lang.Object> mapImplementation)
Constructs a new, empty set; the backing HashMap instance has
default initial capacity (16) and load factor (0.75). |
Method Summary | |
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boolean |
add(E 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. |
boolean |
isEmpty()
Returns true if this set contains no elements. |
java.util.Iterator<E> |
iterator()
Returns an iterator over the elements in this set. |
boolean |
remove(java.lang.Object o)
Removes the specified element from this set if it is present. |
int |
size()
Returns the number of elements in this set (its cardinality). |
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, 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.Set |
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addAll, containsAll, retainAll, toArray, toArray |
Field Detail |
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protected java.util.Map<E,java.lang.Object> map
Constructor Detail |
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protected SetMapAdapter(java.util.Map<E,java.lang.Object> mapImplementation)
HashMap
instance has
default initial capacity (16) and load factor (0.75).
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>
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()
true
if this set contains no elements.
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)
true
if this set contains the specified element.
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.
true
if this set contains the specified element.public boolean add(E 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.
true
if the set did not already contain the specified
element.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>
o
- object to be removed from this set, if present.
true
if the set contained the specified element.public void clear()
clear
in interface java.util.Collection<E>
clear
in interface java.util.Set<E>
clear
in class java.util.AbstractCollection<E>
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