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com.tangosol.net.cache
Class OldCache.KeySet
java.lang.Object
java.util.AbstractCollection
java.util.AbstractSet
com.tangosol.util.SafeHashMap.KeySet
com.tangosol.net.cache.OldCache.KeySet
- All Implemented Interfaces:
- java.io.Serializable, java.lang.Iterable, java.util.Collection, java.util.Set
- Enclosing class:
- OldCache
-
protected class OldCache.KeySet
- extends SafeHashMap.KeySet
A set of entries backed by this map.
Method Summary |
int |
size()
Determine the number of keys in the Set. |
java.lang.Object[] |
toArray(java.lang.Object[] ao)
Returns an array with a runtime type is that of the specified array and that contains all of the elements in this collection. |
Methods inherited from class java.util.AbstractSet |
equals, hashCode, removeAll |
Methods inherited from class java.util.AbstractCollection |
add, addAll, containsAll, isEmpty, retainAll, toString |
Methods inherited from interface java.util.Set |
add, addAll, containsAll, isEmpty, retainAll |
OldCache.KeySet
protected OldCache.KeySet()
toArray
public java.lang.Object[] toArray(java.lang.Object[] ao)
- Returns an array with a runtime type is that of the specified array and that contains all of the elements in this collection. If the collection fits in the specified array, it is returned therein. Otherwise, a new array is allocated with the runtime type of the specified array and the size of this collection.
If the collection fits in the specified array with room to spare (i.e., the array has more elements than the collection), the element in the array immediately following the end of the collection is set to null. This is useful in determining the length of the collection only if the caller knows that the collection does not contain any null elements.)
-
- Specified by:
toArray
in interface java.util.Collection
- Specified by:
toArray
in interface java.util.Set
- Overrides:
toArray
in class SafeHashMap.KeySet
-
- Parameters:
ao
- the array into which the elements of the collection are to be stored, if it is big enough; otherwise, a new array of the same runtime type is allocated for this purpose
- Returns:
- an array containing the elements of the collection
- Throws:
java.lang.ArrayStoreException
- if the runtime type of the specified array is not a supertype of the runtime type of every element in this collection
size
public int size()
- Determine the number of keys in the Set.
-
- Specified by:
size
in interface java.util.Collection
- Specified by:
size
in interface java.util.Set
- Overrides:
size
in class SafeHashMap.KeySet
-
- Returns:
- the number of keys in the Set, which is the same as the number of entries in the underlying Map
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