## org.opencyc.util
Class OcCollectionUtils

    java.lang.Object
      |
      +--org.opencyc.util.OcCollectionUtils

public class OcCollectionUtils
extends java.lang.Object

Provides `Collection` utilities not otherwise provided by Jakarta Commons. All methods are static. There is no need to instantiate this class.

Author:
  Stephen L. Reed

  Copyright 2001 Cycorp, Inc., license is open source GNU LGPL.

  the license

  www.opencyc.org

  OpenCyc at SourceForge

  THIS SOFTWARE AND KNOWLEDGE BASE CONTENT ARE PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OPENCYC ORGANIZATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE AND KNOWLEDGE BASE CONTENT, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Constructor Summary
`OcCollectionUtils()`

Method Summary
`static boolean` `hasDuplicates(java.util.Collection collection)` Returns `true` iff the given `Collection` has any duplicated elements.
`static boolean` `hasIntersection(java.util.Collection a, java.util.Collection b)` Returns `true` iff the given `Collection`s.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### OcCollectionUtils

    public OcCollectionUtils()

Method Detail

### hasIntersection

    public static boolean hasIntersection(java.util.Collection a,
                                          java.util.Collection b)

  Returns `true` iff the given `Collection`s. have any elements in common. Performs HashSet search for larger collections.
  Parameters:
    `a` - the first collection considered for intersection
    `b` - the second collection considered for intersection
  Returns:
    `true` if the given `Collection`s. have any elements in common.

### hasDuplicates

    public static boolean hasDuplicates(java.util.Collection collection)

  Returns `true` iff the given `Collection` has any duplicated elements.
  Parameters:
    `collection` - the collection under consideration for having duplicate elements
  Returns:
    `true` the given `Collection` has any duplicated elements