Examples of java.util.Collection.removeAll()

java.util.Collection.removeAll()
Removes all of this collection's elements that are also contained in the specified collection (optional operation). After this call returns, this collection will contain no elements in common with the specified collection. @param c collection containing elements to be removed from this collection @return true if this collection changed as a result of thecall @throws UnsupportedOperationException if the removeAll methodis not supported by this collection @throws ClassCastException if the types of one or more elementsin this collection are incompatible with the specified collection (optional) @throws NullPointerException if this collection contains one or morenull elements and the specified collection does not support null elements (optional), or if the specified collection is null @see #remove(Object) @see #contains(Object)

      if (step instanceof SimpleStep && aKeys.contains(((SimpleStep)step).getAnalysisEngineKey())) {
        mSequence.set(i, null);
      }
      else if (step instanceof ParallelStep) {
        Collection keys = new ArrayList(((ParallelStep)step).getAnalysisEngineKeys());
        keys.removeAll(aKeys);
        if (keys.isEmpty()) {
          mSequence.set(i, null);
        }
        else {
          mSequence.set(i, new ParallelStep(keys));

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     * @jmx:managed-operation
     */
    public synchronized void removeStartHolds(ObjectName objectName, Collection holds) {
        Collection currentHolds = (Collection) startHoldsMap.get(objectName);
        if (currentHolds != null) {
            currentHolds.removeAll(holds);
        }
    }


    /**
     * Removes all of the holds owned by a component.

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      // Figure out which groups to get rid of.  We start off
      // with the full set for which we are already listening,
      // and eliminate any that are in both the new set and the
      // current set.
      Collection toRemove = new HashSet(groups);
      toRemove.removeAll(newGrps);
      // Add new groups before we remove any old groups, because
      // removeGroups will start a new round of multicast requests
      // if the set of groups becomes empty, and we don't want it
      // to do so without reason.
      groups.addAll(toAdd);

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        Collection props1 = properties(null);
        Collection props2 = properties.properties(null);


        // missed in props2.
        Collection tmp = new TreeSet(props1);
        tmp.removeAll(props2);
        for (Iterator props = tmp.iterator(); props.hasNext();) {
            String missing = (String) props.next();
            comparator.propertyDeleted(missing);
            equals = false;
        }

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            equals = false;
        }


        // added in props2.
        tmp = new TreeSet(props2);
        tmp.removeAll(props1);


        File tmpFile = null;
        File tmpFile1 = null;
        File tmpFile2 = null;
        OutputStream os = null;

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        Collection props1 = getPropertyNames(null);
        Collection props2 = properties.getPropertyNames(null);
        
        // missed in props2.
        Collection tmp = new TreeSet(props1);
        tmp.removeAll(props2);
        for (Iterator props = tmp.iterator(); props.hasNext();) {
            String missing = (String) props.next();
            result.put(missing, null);
        }

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            result.put(missing, null);
        }


        // added in props2.
        tmp = new TreeSet(props2);
        tmp.removeAll(props1);


        for (Iterator props = tmp.iterator(); props.hasNext();) {
            String added = (String) props.next();
            result.put(added, properties.getPropertyValue(added));
        }

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     * @jmx:managed-operation
     */
    public synchronized void removeStartHolds(ObjectName objectName, java.util.Collection holds) {
        Collection currentHolds = (Collection)startHoldsMap.get(objectName);
        if(currentHolds != null) {
            currentHolds.removeAll(holds);
        }
    }


    /**
     * Removes all of the holds owned by a component.

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     * @jmx:managed-operation
     */
    public synchronized void removeStartHolds(ObjectName objectName, Collection holds) {
        Collection currentHolds = (Collection) startHoldsMap.get(objectName);
        if (currentHolds != null) {
            currentHolds.removeAll(holds);
        }
    }


    /**
     * Removes all of the holds owned by a component.

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      if (step instanceof SimpleStep && aKeys.contains(((SimpleStep)step).getAnalysisEngineKey())) {
        mSequence.set(i, null);
      }
      else if (step instanceof ParallelStep) {
        Collection keys = new ArrayList(((ParallelStep)step).getAnalysisEngineKeys());
        keys.removeAll(aKeys);
        if (keys.isEmpty()) {
          mSequence.set(i, null);
        }
        else {
          mSequence.set(i, new ParallelStep(keys));

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