Examples of org.odmg.DSet

org.odmg.DSet
The ODMG Set collection interface. A DSet object is an unordered collection that does not support multiple elements with the same value. An implementation typically is very efficient at determining whether the collection contains a particular value.
All of the operations defined by the JavaSoft Set interface are supported by an ODMG implementation of DSet, the exception UnsupportedOperationException is not thrown when a call is made to any of the Set methods. @author David Jordan (as Java Editor of the Object Data Management Group) @version ODMG 3.0

     * @return  A newly created <code>DSet</code> instance that contains the
     * intersection of the two sets.
     */
    public DSet intersection(DSet otherSet)
    {
        DSet union = this.union(otherSet);
        DSetImpl result = new DSetImpl(getPBKey());
        Iterator iter = union.iterator();
        while (iter.hasNext())
        {
            Object candidate = iter.next();
            if (this.contains(candidate) && otherSet.contains(candidate))
            {

View Full Code Here

        final String name = "testAdding_" + System.currentTimeMillis();


        TransactionExt tx = (TransactionExt) odmg.newTransaction();
        tx.begin();
        // create DSet and bound by name
        DSet list = odmg.newDSet();
        database.bind(list, name);
        tx.commit();


        tx.begin();
        tx.getBroker().clearCache();
        Object obj = database.lookup(name);
        tx.commit();
        assertNotNull("binded DSet not found", obj);


        tx.begin();
        // add objects to list
        for (int i = 0; i < 5; i++)
        {
            DListTest.DObject a = createObject(name);
            list.add(a);
        }
        tx.commit();


        // check current list
        Iterator iter = list.iterator();
        while (iter.hasNext())
        {
            DListTest.DObject a = (DListTest.DObject) iter.next();
            assertNotNull(a);
        }


        tx.begin();
        tx.getBroker().clearCache();


        // lookup list and check entries
        DSet lookedUp = (DSet) database.lookup(name);
        assertNotNull("binded DSet not found", lookedUp);


        //System.out.println("sequence of items in lookedup list:");
        iter = lookedUp.iterator();
        Iterator iter1 = list.iterator();
        while (iter.hasNext())
        {
            DListTest.DObject a = (DListTest.DObject) iter.next();
            DListTest.DObject b = (DListTest.DObject) iter1.next();
            assertNotNull(a);
            assertNotNull(b);
            assertEquals(a.getId(), b.getId());
        }
        tx.commit();


        // add new entries to list
        tx.begin();
        for (int i = 0; i < 3; i++)
        {
            DListTest.DObject a = createObject(name + "_new_entry");
            list.add(a);
        }
        tx.commit();


        tx.begin();
        tx.getBroker().clearCache();
        lookedUp = (DSet) database.lookup(name);
        iter = lookedUp.iterator();
        iter1 = list.iterator();
        assertEquals("Wrong number of DListEntry found", 8, list.size());
        while (iter.hasNext())
        {
            DListTest.DObject a = (DListTest.DObject) iter.next();

View Full Code Here

    {
        // create a unique name:
        final String name = "testAdding_" + System.currentTimeMillis();


        // get DSet and fill with objects
        DSet list = odmg.newDSet();
        Transaction tx = odmg.newTransaction();
        tx.begin();
        for (int i = 0; i < 5; i++)
        {
            DListTest.DObject a = createObject(name);
            list.add(a);
        }
        // bind the new list
        database.bind(list, name);
        tx.commit();


        tx = odmg.newTransaction();
        tx.begin();
        Object obj = database.lookup(name);
        tx.commit();
        assertNotNull("binded DSet not found", obj);


        // iterate list
        Iterator iter = list.iterator();
        while (iter.hasNext())
        {
            DListTest.DObject a = (DListTest.DObject) iter.next();
            assertNotNull(a);
        }
        assertEquals(5, list.size());


        tx = odmg.newTransaction();
        tx.begin();
        ((TransactionExt) odmg.currentTransaction()).getBroker().clearCache();
        DSet lookedUp = (DSet) database.lookup(name);
        tx.commit();
        assertNotNull("binded DSet not found", lookedUp);


        //System.out.println("sequence of items in lookedup list:");
        iter = lookedUp.iterator();
        Iterator iter1 = list.iterator();
        while (iter.hasNext())
        {
            DListTest.DObject a = (DListTest.DObject) iter.next();
            DListTest.DObject b = (DListTest.DObject) iter1.next();

View Full Code Here

        // create a unique name:
        String name = "testRemoving_" + System.currentTimeMillis();


        TransactionExt tx = (TransactionExt) odmg.newTransaction();
        tx.begin();
        DSet list = odmg.newDSet();
        // bind the list to the name:
        database.bind(list, name);


        Object first = null;
        Object second = null;
        for (int i = 0; i < 5; i++)
        {
            DListTest.DObject a = createObject(name);
            list.add(a);
            if(i==1) first = a;
            if(i==2) second = a;
        }
        assertEquals(5, list.size());
        tx.commit();


        // delete two items
        tx = (TransactionExt) odmg.newTransaction();
        tx.begin();
        ((HasBroker) odmg.currentTransaction()).getBroker().clearCache();
        DSet lookedUp = (DSet) database.lookup(name);
        assertNotNull("database lookup does not find the named DSet", lookedUp);
        assertEquals("Wrong number of list entries", 5, lookedUp.size());
        lookedUp.remove(first);
        lookedUp.remove(second);
        tx.commit();


        // check if deletion was successful
        tx = (TransactionExt) odmg.newTransaction();
        tx.begin();
        tx.getBroker().clearCache();
        lookedUp = (DSet) database.lookup(name);
        tx.commit();


        assertEquals(3, lookedUp.size());
    }

View Full Code Here

        // create a unique name:
        String name = "testAdding_" + System.currentTimeMillis();


        TransactionExt tx = (TransactionExt) odmg.newTransaction();
        tx.begin();
        DSet list = odmg.newDSet();
        database.bind(list, name);
        tx.commit();


        tx = (TransactionExt) odmg.newTransaction();
        tx.begin();
        for (int i = 0; i < 5; i++)
        {
            DListTest.DObject a = createObject(name);
            list.add(a);
        }


        list.add(createObject(name+"_posNew1"));
        list.add(createObject(name+"_posNew2"));
        list.add(createObject(name+"_posNew3"));
        tx.commit();


        tx.begin();
        tx.getBroker().clearCache();
        // System.out.println("list: " + list);
        // System.out.println("lookup list: " + db.lookup(name));
        tx.commit();


        //System.out.println("sequence of items in list:");
        Iterator iter = list.iterator();
        DListTest.DObject a;
        while (iter.hasNext())
        {
            a = (DListTest.DObject) iter.next();
            assertNotNull(a);
            //System.out.print(a.getArticleId() + ", ");
        }
        assertEquals(8, list.size());




        tx = (TransactionExt) odmg.newTransaction();
        tx.begin();
        tx.getBroker().clearCache();
        DSet lookedUp = (DSet) database.lookup(name);
        // System.out.println("lookup list: " + lookedUp);
        assertNotNull("database lookup does not find DSet", lookedUp);
        assertEquals(8, lookedUp.size());
        iter = lookedUp.iterator();
        while (iter.hasNext())
        {
            a = (DListTest.DObject) iter.next();
        }
        tx.commit();

View Full Code Here

        b = createObject(name);
        c = createObject(name);
        d = createObject(name);
        e = createObject(name);


        DSet set1 = odmg.newDSet();
        DSet set2 = odmg.newDSet();


        set1.add(a);
        set1.add(b);
        set1.add(c);


        set2.add(b);
        set2.add(c);
        set2.add(d);
        set2.add(e);


        database.bind(set1, set_1);
        database.bind(set2, set_2);
        tx.commit();


        // low lookup both sets
        tx = odmg.newTransaction();
        tx.begin();
        ((HasBroker) tx).getBroker().clearCache();
        DSet set1a = (DSet) database.lookup(set_1);
        DSet set2a = (DSet) database.lookup(set_2);


        // check looked up sets
        assertTrue(set1a.containsAll(set1));
        assertTrue(set2a.containsAll(set2));


        // now TestThreadsNLocks set operations:
        DSet set3 = set1.difference(set2);
        assertEquals(1, set3.size());


        set3 = set1.intersection(set2);
        assertEquals(2, set3.size());


        set3 = set1.union(set2);
        assertEquals(5, set3.size());


        assertTrue(set1.properSubsetOf(set3));
        assertTrue(set2.properSubsetOf(set3));


        assertTrue(set3.properSupersetOf(set1));
        assertTrue(set3.properSupersetOf(set2));


        assertTrue(!set1.properSubsetOf(set2));


        tx.commit();
    }

View Full Code Here

     * @return  A newly created <code>DSet</code> instance that contains the
     * intersection of the two sets.
     */
    public org.odmg.DSet intersection(org.odmg.DSet otherSet)
    {
        DSet union = this.union(otherSet);
        DSetImpl result = new DSetImpl(pbKey);
        Iterator iter = union.iterator();
        while (iter.hasNext())
        {
            Object candidate = iter.next();
            if (this.contains(candidate) && otherSet.contains(candidate))
            {

View Full Code Here

        b = createObject(name);
        c = createObject(name);
        d = createObject(name);
        e = createObject(name);


        DSet set1 = odmg.newDSet();
        DSet set2 = odmg.newDSet();


        set1.add(a);
        set1.add(b);
        set1.add(c);


        set2.add(b);
        set2.add(c);
        set2.add(d);
        set2.add(e);


        db.bind(set1, set_1);
        db.bind(set2, set_2);
        tx.commit();


        // low lookup both sets
        tx = odmg.newTransaction();
        tx.begin();
        ((HasBroker) tx).getBroker().clearCache();
        DSet set1a = (DSet) db.lookup(set_1);
        DSet set2a = (DSet) db.lookup(set_2);


        // check looked up sets
        assertTrue(set1a.containsAll(set1));
        assertTrue(set2a.containsAll(set2));


        // now TestThreadsNLocks set operations:
        DSet set3 = set1.difference(set2);
        assertEquals(1, set3.size());


        set3 = set1.intersection(set2);
        assertEquals(2, set3.size());


        set3 = set1.union(set2);
        assertEquals(5, set3.size());


        assertTrue(set1.properSubsetOf(set3));
        assertTrue(set2.properSubsetOf(set3));


        assertTrue(set3.properSupersetOf(set1));
        assertTrue(set3.properSupersetOf(set2));


        assertTrue(!set1.properSubsetOf(set2));


        tx.commit();
    }

View Full Code Here

     * @return  A newly created <code>DSet</code> instance that contains the
     * intersection of the two sets.
     */
    public org.odmg.DSet intersection(org.odmg.DSet otherSet)
    {
        DSet union = this.union(otherSet);
        DSetImpl result = new DSetImpl(pbKey);
        Iterator iter = union.iterator();
        while (iter.hasNext())
        {
            Object candidate = iter.next();
            if (this.contains(candidate) && otherSet.contains(candidate))
            {

View Full Code Here

     * @return  A newly created <code>DSet</code> instance that contains the
     * intersection of the two sets.
     */
    public DSet intersection(DSet otherSet)
    {
        DSet union = this.union(otherSet);
        DSetImpl result = new DSetImpl(getPBKey());
        Iterator iter = union.iterator();
        while (iter.hasNext())
        {
            Object candidate = iter.next();
            if (this.contains(candidate) && otherSet.contains(candidate))
            {

View Full Code Here

TOP

Related Classes of org.odmg.DSet

org.apache.ojb.odmg.collections.DSetImpl

org.apache.ojb.odmg.DListTest

org.apache.ojb.odmg.DSetTest

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.