IntSet (CGIN Unified RA API (1.5.4.7))

java.lang.Object
- com.opencloud.util.IntSet

All Implemented Interfaces:

FastSerializable, Serializable, Cloneable, Iterable<Integer>
```
public class IntSet
extends Object
implements Cloneable, Serializable, FastSerializable, Iterable<Integer>
```
IntSet provides efficient management of a set of primitive integers. The underlying storage is an int[]. IntSet tries to avoid reallocating storage where possible.

See Also:
Serialized Form

Constructor Summary

Constructors
Constructor and Description
`IntSet()` Construct a new empty set.
`IntSet(DataInput inStream)` FastSerializable constructor.
`IntSet(int capacity)` Construct a new empty set, with the given initial allocation size
`IntSet(int[] fromData)` Construct a set from an integer array.
`IntSet(int[] fromData, boolean sorted)` Construct a set from an integer array.
`IntSet(IntSet fromSet)` Construct a copy of an IntSet.
`IntSet(String str)` Construct a set from a toString() representation

Method Summary

Methods
Modifier and Type	Method and Description
`boolean`	`add(int val)` Add a value to the set.
`IntSet`	`addAll(int[] vals)` Add an array of values to the set.
`StringBuffer`	`appendToStringBuffer(StringBuffer sb)` Appends a textual representation of this IntSet to the given StringBuffer.
`void`	`clear()` Sets this IntSet to represent the empty set.
`IntSet`	`clone()` Performs a deep copy of the set.
`static IntSet`	`complement(IntSet superset, IntSet subset)` Return a new set that is the complement of a subset within a superset.
`boolean`	`contains(int val)` Check if a value is contained in the set.
`boolean`	`containsAll(int[] vals)` Check if the given values are contained in the set.
`static IntSet`	`copyOf(int[] from)` Construct a new set that contains the given values.
`static IntSet`	`copyOf(Set<Integer> fromSet)` Construct a new set that contains a copy of the values in the given set.
`static IntSet`	`emptySet()` Construct a new empty set.
`boolean`	`equals(Object other)` Set equality.
`void`	`fromArray(int[] fromData)` Sets the integers in this IntSet to be those in the given array.
`void`	`fromArray(int[] fromData, boolean sorted)` Sets the integers in this IntSet to be those in the given array.
`int`	`hashCode()` Computes a hash code value for this object.
`static IntSet`	`intersection(IntSet setA, IntSet setB)` Return a new set that is the intersection of two other sets.
`boolean`	`isEmpty()` Determines whether this IntSet represents an empty set.
`boolean`	`isSubsetOf(IntSet superset)` Determines whether this IntSet is a subset of the given IntSet.
`boolean`	`isSupersetOf(IntSet subset)` Determines whether this IntSet is a superset of the given IntSet.
`Iterator<Integer>`	`iterator()`
`int`	`lowestMember()` Gets the smallest valued int from this IntSet.
`static IntSet`	`of(int... values)` Construct a set with the given values.
`boolean`	`remove(int val)` Remove a value from the set.
`IntSet`	`removeAll(int[] vals)` Remove an array of values to the set.
`int`	`size()` Gets the size of this IntSet.
`int[]`	`toArray()` Return an array containing only the set data (sorted).
`void`	`toStream(DataOutput outStream)` Serialize the state of this object to a stream.
`String`	`toString()` Returns a textual representation of this IntSet.
`static IntSet`	`union(IntSet setA, IntSet setB)` Return a new set that is the union of two other sets.

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - IntSet
```
public IntSet()
```
    Construct a new empty set.
  - IntSet
```
public IntSet(int capacity)
```
    Construct a new empty set, with the given initial allocation size
    
    Parameters:
    capacity - the initial storage capacity to use; may be adjusted if too small.
  - IntSet
```
public IntSet(IntSet fromSet)
```
    Construct a copy of an IntSet.
    
    Parameters:
    fromSet - the set to copy
  - IntSet
```
public IntSet(int[] fromData,
      boolean sorted)
```
    Construct a set from an integer array.
    
    Parameters:
    fromData - the initial contents of the set; not modified
    sorted - if true, fromArray is assumed to be already sorted
  - IntSet
```
public IntSet(int[] fromData)
```
    Construct a set from an integer array.
    
    Parameters:
    fromData - an array holding the initial set contents; assumed to be unsorted.
  - IntSet
```
public IntSet(DataInput inStream)
       throws IOException
```
    FastSerializable constructor.
    
    Throws:
    
    IOException
  - IntSet
```
public IntSet(String str)
       throws IllegalArgumentException
```
    Construct a set from a toString() representation
    
    Throws:
    
    IllegalArgumentException
- Method Detail
  - of
```
public static IntSet of(int... values)
```
    Construct a set with the given values. This is a separate static method to avoid confusion with the single-int ctor variant.
    
    Parameters:
    values - values to include in the new set
    
    Returns:
    a new IntSet
  - emptySet
```
public static IntSet emptySet()
```
    Construct a new empty set. Equivalent to "new IntSet()" but reads a little more nicely.
    
    Returns:
    a new empty IntSet
  - copyOf
```
public static IntSet copyOf(int[] from)
```
    Construct a new set that contains the given values.
    
    Parameters:
    from - an array of unsorted values
    
    Returns:
    a new IntSet
  - copyOf
```
public static IntSet copyOf(Set<Integer> fromSet)
```
    Construct a new set that contains a copy of the values in the given set.
    
    Parameters:
    fromSet - a set of Integers
    
    Returns:
    a new IntSet
  - clone
```
public IntSet clone()
```
    Performs a deep copy of the set.
    
    Overrides:
    
    clone in class Object
  - toStream
```
public void toStream(DataOutput outStream)
              throws IOException
```
    Description copied from interface: FastSerializable
    
    Serialize the state of this object to a stream.
    
    Specified by:
    
    toStream in interface FastSerializable
    
    Parameters:
    outStream - the stream to serialize to.
    
    Throws:
    
    IOException - if an error occurs during serialization
  - equals
```
public boolean equals(Object other)
```
    Set equality.
    
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Computes a hash code value for this object.
    
    Overrides:
    
    hashCode in class Object
    
    Returns:
    int hash code
  - isEmpty
```
public boolean isEmpty()
```
    Determines whether this IntSet represents an empty set.
    
    Returns:
    whether size of set is 0
  - add
```
public boolean add(int val)
```
    Add a value to the set.
    
    Parameters:
    val - the value to add
    
    Returns:
    true if the value was not already present
  - addAll
```
public IntSet addAll(int[] vals)
```
    Add an array of values to the set.
    
    Parameters:
    vals - the values to add.
    
    Returns:
    this IntSet
  - remove
```
public boolean remove(int val)
```
    Remove a value from the set.
    
    Parameters:
    val - the value to remove
    
    Returns:
    true if the value was present (and removed)
  - removeAll
```
public IntSet removeAll(int[] vals)
```
    Remove an array of values to the set.
    
    Parameters:
    vals - the values to remove.
    
    Returns:
    this IntSet
  - contains
```
public boolean contains(int val)
```
    Check if a value is contained in the set.
    
    Parameters:
    val - the value to check for
    
    Returns:
    true if val is present in the set
  - containsAll
```
public boolean containsAll(int[] vals)
```
    Check if the given values are contained in the set.
    
    Parameters:
    vals - the values to check for
    
    Returns:
    true if all the values are present in the set, false otherwise
  - fromArray
```
public void fromArray(int[] fromData)
```
    Sets the integers in this IntSet to be those in the given array.
    
    Parameters:
    fromData - array of ints
  - fromArray
```
public void fromArray(int[] fromData,
             boolean sorted)
```
    Sets the integers in this IntSet to be those in the given array.
    
    Parameters:
    fromData - array of ints
    sorted - whether the ints in array fromData are in sorted sequence
  - clear
```
public void clear()
```
    Sets this IntSet to represent the empty set.
  - toArray
```
public int[] toArray()
```
    Return an array containing only the set data (sorted).
    
    Returns:
    a sorted array containing the set members
  - toString
```
public String toString()
```
    Returns a textual representation of this IntSet. The textual representation is of the form [i_1, ..., i_n].
    
    Overrides:
    
    toString in class Object
    
    Returns:
    String
  - appendToStringBuffer
```
public StringBuffer appendToStringBuffer(StringBuffer sb)
```
    Appends a textual representation of this IntSet to the given StringBuffer. The textual representation is of the form [i_1, ..., i_n].
    
    Parameters:
    sb - StringBuffer
    
    Returns:
    the given StringBuffer
  - intersection
```
public static IntSet intersection(IntSet setA,
                  IntSet setB)
```
    Return a new set that is the intersection of two other sets. O(n+m).
    
    Parameters:
    setA - the first set to intersect; null means an empty set
    setB - the second set to intersect; null means an empty set
    
    Returns:
    a new set (always non-null) containing those members in both setA and setB
  - union
```
public static IntSet union(IntSet setA,
           IntSet setB)
```
    Return a new set that is the union of two other sets. O(n+m).
    
    Parameters:
    setA - the first set to union; null means an empty set
    setB - the second set to union; null means an empty set
    
    Returns:
    a new set (always non-null) containing all members of setA and setB
  - complement
```
public static IntSet complement(IntSet superset,
                IntSet subset)
```
    Return a new set that is the complement of a subset within a superset. O(n+m).
    
    Parameters:
    superset - the superset to perform the complement within; null means the empty set
    subset - the subset to complement; null means the empty set
    
    Returns:
    a new set (always non-null) containing all members of superset that are not in subset
  - isSupersetOf
```
public boolean isSupersetOf(IntSet subset)
```
    Determines whether this IntSet is a superset of the given IntSet.
    
    Parameters:
    subset - the conjectured subset of this IntSet
  - isSubsetOf
```
public boolean isSubsetOf(IntSet superset)
```
    Determines whether this IntSet is a subset of the given IntSet.
    
    Parameters:
    superset - the conjectured superset of this IntSet
  - size
```
public int size()
```
    Gets the size of this IntSet.
    
    Returns:
    int size
  - lowestMember
```
public int lowestMember()
```
    Gets the smallest valued int from this IntSet.
    
    Returns:
    lowest int
    
    Throws:
    
    NoSuchElementException - if this IntSet is empty
  - iterator
```
public Iterator<Integer> iterator()
```
    Specified by:
    
    iterator in interface Iterable<Integer>

Class IntSet

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

IntSet

IntSet

IntSet

IntSet

IntSet

IntSet

IntSet

Method Detail

of

emptySet

copyOf

copyOf

clone

toStream

equals

hashCode

isEmpty

add

addAll

remove

removeAll

contains

containsAll

fromArray

fromArray

clear

toArray

toString

appendToStringBuffer

intersection

union

complement

isSupersetOf

isSubsetOf

size

lowestMember

iterator