Implements com.carrotsearch.hppc.LongSet.add.

Doc from com.carrotsearch.hppc.LongSet.add.

Adds k to the set.

Returns:boolean

Returns true if this element was not part of the set before. Returns false if an equal element is already part of the set, does not replace the existing element with the argument.

Annotations

@Override

Adds all elements from the given list (vararg) to this set.

Returns:int

Returns the number of elements actually added as a result of this call (not previously present in the set).

Implements com.carrotsearch.hppc.LongSet.addAll.

Adds all elements from the given LongContainer to this set.

Returns:int

Returns the number of elements actually added as a result of this call (not previously present in the set).

Adds all elements from the given iterable to this set.

Returns:int

Returns the number of elements actually added as a result of this call (not previously present in the set).

Implements com.carrotsearch.hppc.LongCollection.clear.

Doc from com.carrotsearch.hppc.LongCollection.clear.

Removes all elements from this collection.

Annotations

@Override

Overrides java.lang.Object.clone.

Doc from java.lang.Object.clone.

Creates and returns a copy of this object. The precise meaning of "copy" may depend on the class of the object. The general intent is that, for any object x, the expression:

x.clone() != x

x.clone().getClass() == x.getClass()

x.clone().equals(x)

By convention, the returned object should be obtained by calling super.clone. If a class and all of its superclasses (except Object) obey this convention, it will be the case that x.clone().getClass() == x.getClass().

By convention, the object returned by this method should be independent of this object (which is being cloned). To achieve this independence, it may be necessary to modify one or more fields of the object returned by super.clone before returning it. Typically, this means copying any mutable objects that comprise the internal "deep structure" of the object being cloned and replacing the references to these objects with references to the copies. If a class contains only primitive fields or references to immutable objects, then it is usually the case that no fields in the object returned by super.clone need to be modified.

Returns:LongHashSet

a clone of this instance.

Annotations

@Override

Implements com.carrotsearch.hppc.LongLookupContainer.contains, com.carrotsearch.hppc.LongContainer.contains.

Doc from com.carrotsearch.hppc.LongContainer.contains.

Lookup a given element in the container. This operation has no speed guarantees (may be linear with respect to the size of this container).

Returns:boolean

Returns true if this container has an element equal to e.

Annotations

@Override

Implements com.carrotsearch.hppc.Preallocable.ensureCapacity.

Ensure this container can hold at least the given number of elements without resizing its buffers.

Parameters

expectedElements:int

The total number of elements, inclusive.

Annotations

@Override

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

• It is reflexive: for any non-null reference value x, x.equals(x) should return true.
• It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
• It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
• It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
• For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters

obj:Object

the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

Annotations

@Override

Implements com.carrotsearch.hppc.LongContainer.forEach, com.carrotsearch.hppc.LongContainer.forEach.

Doc from com.carrotsearch.hppc.LongContainer.forEach.

Applies a procedure to all container elements. Returns the argument (any subclass of LongProcedure. This lets the caller to call methods of the argument by chaining the call (even if the argument is an anonymous type) to retrieve computed values, for example (IntContainer):

int count = container.forEach(new IntProcedure() {
  int count; // this is a field declaration in an anonymous class.

  public void apply(int value) {
    count++;
  }
}).count;

Annotations

@Override

Implements com.carrotsearch.hppc.LongContainer.forEach, com.carrotsearch.hppc.LongContainer.forEach.

Doc from com.carrotsearch.hppc.LongContainer.forEach.

Applies a procedure to all container elements. Returns the argument (any subclass of LongProcedure. This lets the caller to call methods of the argument by chaining the call (even if the argument is an anonymous type) to retrieve computed values, for example (IntContainer):

int count = container.forEach(new IntProcedure() {
  int count; // this is a field declaration in an anonymous class.

  public void apply(int value) {
    count++;
  }
}).count;

Annotations

@Override

Create a set from a variable number of arguments or an array of long. The elements are copied from the argument to the internal buffer.

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

• Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
• If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
• It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns:int

a hash code value for this object

Annotations

@Override

Parameters

index:int

The index of a given key, as returned from indexOf.

Returns:boolean

Returns true if the index corresponds to an existing key or false otherwise. This is equivalent to checking whether the index is a positive value (existing keys) or a negative value (non-existing keys).

See Also

indexOf

Returns the exact value of the existing key. This method makes sense for sets of objects which define custom key-equality relationship.

Parameters

index:int

The index of an existing key.

Returns:long

Returns the equivalent key currently stored in the set.

Exceptions

AssertionError:

If assertions are enabled and the index does not correspond to an existing key.

See Also

indexOf

Inserts a key for an index that is not present in the set. This method may help in avoiding double recalculation of the key's hash.

Parameters

index:int

The index of a previously non-existing key, as returned from indexOf.

Exceptions

AssertionError:

If assertions are enabled and the index does not correspond to an existing key.

See Also

indexOf

Returns a logical "index" of a given key that can be used to speed up follow-up logic in certain scenarios (conditional logic).

The semantics of "indexes" are not strictly defined. Indexes may (and typically won't be) contiguous.

The index is valid only between modifications (it will not be affected by read-only operations).

Parameters

key:long

The key to locate in the set.

Returns:int

A non-negative value of the logical "index" of the key in the set or a negative value if the key did not exist.

See Also

indexExists, indexGet, indexInsert, indexReplace

Removes a key at an index previously acquired from indexOf.

Parameters

index:int

The index of the key to remove, as returned from indexOf.

Exceptions

AssertionError:

If assertions are enabled and the index does not correspond to an existing key.

See Also

indexOf

Replaces the existing equivalent key with the given one and returns any previous value stored for that key.

Parameters

index:int

The index of an existing key.

equivalentKey:long

The key to put in the set as a replacement. Must be equivalent to the key currently stored at the provided index.

Returns:long

Returns the previous key stored in the set.

Exceptions

AssertionError:

If assertions are enabled and the index does not correspond to an existing key.

See Also

indexOf

Implements com.carrotsearch.hppc.LongContainer.isEmpty.

Doc from com.carrotsearch.hppc.LongContainer.isEmpty.

Shortcut for size() == 0.

Annotations

@Override

Implements com.carrotsearch.hppc.LongContainer.iterator.

Doc from com.carrotsearch.hppc.LongContainer.iterator.

Returns an iterator to a cursor traversing the collection. The order of traversal is not defined. More than one cursor may be active at a time. The behavior of iterators is undefined if structural changes are made to the underlying collection.

The iterator is implemented as a cursor and it returns the same cursor instance on every call to Iterator#next() (to avoid boxing of primitive types). To read the current list's value (or index in the list) use the cursor's public fields. An example is shown below.

for (LongCursor<long> c : container) {
  System.out.println("index=" + c.index + " value=" + c.value);
}

Returns:Iterator<LongCursor>

Doc from java.lang.Iterable.iterator.

an Iterator.

Annotations

@Override

Implements com.carrotsearch.hppc.Accountable.ramBytesAllocated.

Doc from com.carrotsearch.hppc.Accountable.ramBytesAllocated.

Allocated memory estimation

Returns:long

Ram allocated in bytes

Annotations

@Override

Implements com.carrotsearch.hppc.Accountable.ramBytesUsed.

Doc from com.carrotsearch.hppc.Accountable.ramBytesUsed.

Bytes that is actually been used

Returns:long

Ram used in bytes

Annotations

@Override

Implements com.carrotsearch.hppc.LongCollection.release.

Doc from com.carrotsearch.hppc.LongCollection.release.

Removes all elements from the collection and additionally releases any internal buffers. Typically, if the object is to be reused, a simple clear() should be a better alternative since it'll avoid reallocation.

Annotations

@Override

An alias for the (preferred) removeAll.

Implements com.carrotsearch.hppc.LongCollection.removeAll.

Doc from com.carrotsearch.hppc.LongCollection.removeAll.

Removes all occurrences of e from this collection.

Parameters

key:long

Element to be removed from this collection, if present.

Returns:int

The number of removed elements as a result of this call.

Annotations

@Override

Removes all keys present in a given container.

Returns:int

Returns the number of elements actually removed as a result of this call.

Implements com.carrotsearch.hppc.LongCollection.removeAll.

Doc from com.carrotsearch.hppc.LongCollection.removeAll.

Removes all elements in this collection for which the given predicate returns true .

Returns:int

Returns the number of removed elements.

Annotations

@Override

Implements com.carrotsearch.hppc.LongContainer.size.

Doc from com.carrotsearch.hppc.LongContainer.size.

Return the current number of elements in this container. The time for calculating the container's size may take O(n) time, although implementing classes should try to maintain the current size and return in constant time.

Annotations

@Override

Overrides com.carrotsearch.hppc.AbstractLongCollection.toArray.

Implements com.carrotsearch.hppc.LongContainer.toArray.

Doc from com.carrotsearch.hppc.LongContainer.toArray.

Copies all elements of this container to an array.

The returned array is always a copy, regardless of the storage used by the container.

Annotations

@Override

Implements com.carrotsearch.hppc.LongSet.visualizeKeyDistribution.

Doc from com.carrotsearch.hppc.LongSet.visualizeKeyDistribution.

Visually depict the distribution of keys.

Parameters

characters:int

The number of characters to "squeeze" the entire buffer into.

Returns:String

Returns a sequence of characters where '.' depicts an empty fragment of the internal buffer and 'X' depicts full or nearly full capacity within the buffer's range and anything between 1 and 9 is between.

Annotations

@Override