Examples of java.util.Set.addAll()

java.util.Set.addAll()
Adds all of the elements in the specified collection to this set if they're not already present (optional operation). If the specified collection is also a set, the addAll operation effectively modifies this set so that its value is the union of the two sets. The behavior of this operation is undefined if the specified collection is modified while the operation is in progress. @param c collection containing elements to be added to this set @return true if this set changed as a result of the call @throws UnsupportedOperationException if the addAll operationis not supported by this set @throws ClassCastException if the class of an element of thespecified collection prevents it from being added to this set @throws NullPointerException if the specified collection contains oneor more null elements and this set does not permit null elements, or if the specified collection is null @throws IllegalArgumentException if some property of an element of thespecified collection prevents it from being added to this set @see #add(Object)

    Set distinctValues = new HashSet();
    
    DistinctCountHolder holder1  = (DistinctCountHolder)calculable1.getValue();
    if (holder1 != null)
    {
      distinctValues.addAll(holder1.getDistinctValues());
      if (holder1.getLastValue() != null)
      {
        distinctValues.add(holder1.getLastValue());
      }
    }

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    }
    
    DistinctCountHolder holder2  = (DistinctCountHolder)calculable2.getValue();
    if (holder2 != null)
    {
      distinctValues.addAll(holder2.getDistinctValues());
      if (holder2.getLastValue() != null)
      {
        distinctValues.add(holder2.getLastValue());
      }
    }

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   Set getConnectionListeners()
   {
      synchronized (cls)
      {         
         Set result = new HashSet();
         result.addAll(cls); 
         result.addAll(checkedOut); 
         return result;
      }
   }

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   {
      synchronized (cls)
      {         
         Set result = new HashSet();
         result.addAll(cls); 
         result.addAll(checkedOut); 
         return result;
      }
   }


   boolean isEmpty()

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      if(!allLeftJoinPaths.isEmpty())
      {
         Set allLeftJoins = new HashSet();
         for(Iterator iter = allLeftJoinPaths.values().iterator(); iter.hasNext();)
         {
            allLeftJoins.addAll((Set) iter.next());
         }


         // add all parent paths for left joins
         for(Iterator iter = allLeftJoins.iterator(); iter.hasNext();)
         {

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      if(!ctermLeftJoinPaths.isEmpty())
      {
         Set allLeftJoins = new HashSet();
         for(Iterator iter = ctermLeftJoinPaths.values().iterator(); iter.hasNext();)
         {
            allLeftJoins.addAll((Set) iter.next());
         }


         // add all parent paths for left joins
         for(Iterator iter = allLeftJoins.iterator(); iter.hasNext();)
         {

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      Set state = (Set)txState.get(tx);
      if (state == null && forUpdate)
      {
         state = (Set)base.getClass().newInstance();
         state.addAll(base);
         txState.set(tx, state);
         long newId = versionId + 1;
         synchManager.registerUpdate(tx, this);
         txVersion.set(tx, new Long(newId));
         return state;

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    }


    protected Set keySet()
    {
        Set set = super.keySet();
        set.addAll(((Map)object).keySet());
        return set;
    }
}

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    public synchronized void refreshAllObjects()
    {
        assertIsOpen();


        Set toRefresh = new HashSet();
        toRefresh.addAll(enlistedSMCache.values());
        toRefresh.addAll(dirtySMs);
        toRefresh.addAll(indirectDirtySMs);
        if (!tx.isActive())
        {
            toRefresh.addAll(cache.values());

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    {
        assertIsOpen();


        Set toRefresh = new HashSet();
        toRefresh.addAll(enlistedSMCache.values());
        toRefresh.addAll(dirtySMs);
        toRefresh.addAll(indirectDirtySMs);
        if (!tx.isActive())
        {
            toRefresh.addAll(cache.values());
        }

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