Examples of org.jpox.store.query.ResultObjectFactory

org.jpox.store.query.ResultObjectFactory
An object that reads result set rows and returns corresponding object(s) from them. Different queries accomplish this in different ways so a query supplies a suitable ResultObjectFactory to each QueryResult when it is executed. The QueryResult only uses it to turn ResultSet rows into objects and otherwise manages the ResultSet itself.
For example an implementation of this interface could return a single Persistent object per row (PersistentIDROF). Another implementation could return all columns of the result set as separate objects.
@see QueryResult @version $Revision: 1.4 $

        {
            stmt = getIteratorStatement(ownerSM, -1, -1);
        }


        // Add the required field selections to the statement
        ResultObjectFactory rof = newResultObjectFactory(ownerSM, stmt, false, true);


        ObjectManager om = ownerSM.getObjectManager();
        Transaction tx = om.getTransaction();
        boolean useUpdateLock = ((Boolean)tx.getOptions().get("transaction.serializeReadObjects")).booleanValue();
        String statement = storeMgr.getStatementTextForQuery(stmt, useUpdateLock);

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    {
        java.util.List list = new java.util.ArrayList();


        ObjectManager om = sm.getObjectManager();
        QueryExpression stmt = getIteratorStatement(sm, start, end);
        ResultObjectFactory getROF = newResultObjectFactory(sm,stmt,false,true);
        Transaction tx = om.getTransaction();
        boolean useUpdateLock = ((Boolean)tx.getOptions().get("transaction.serializeReadObjects")).booleanValue();
        String statement = storeMgr.getStatementTextForQuery(stmt, useUpdateLock);


        try
        {
            ManagedConnection mconn = storeMgr.getConnection(om);
            SQLController sqlControl = storeMgr.getSQLController();
            try
            {
                PreparedStatement ps = storeMgr.getStatementForQuery(stmt, om, mconn, useUpdateLock, null, null);
                try
                {
                    ResultSet rs = sqlControl.executeStatementQuery(mconn, statement, ps);
                    try
                    {
                        while (rs.next())
                        {
                            Object obj = null;


                            if (elementsAreEmbedded || elementsAreSerialised)
                            {
                                int param[] = new int[elementMapping.getNumberOfDatastoreFields()];
                                for (int i = 0; i < param.length; ++i)
                                {
                                    param[i] = i + 1;
                                }
                                obj = elementMapping.getObject(om, rs, param);
                            }
                            else if (elementMapping instanceof ReferenceMapping)
                            {
                                // Element = Reference (Interface/Object)
                                int param[] = new int[elementMapping.getNumberOfDatastoreFields()];
                                for (int i = 0; i < param.length; ++i)
                                {
                                    param[i] = i + 1;
                                }
                                obj = elementMapping.getObject(om, rs, param);
                            }
                            else
                            {
                                obj = getROF.getObject(om, rs);
                            }


                            list.add(obj);
                        }

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        // Create the basic statement (without any selected columns)
        QueryExpression stmt = getGetStatement(sm,key);


        // Add the required field selections to the statement
        ResultObjectFactory rof = newResultObjectFactory(sm, stmt, false, true);


        ObjectManager om = sm.getObjectManager();
        Transaction tx = om.getTransaction();
        boolean useUpdateLock = ((Boolean)tx.getOptions().get("transaction.serializeReadObjects")).booleanValue();
        String statement = storeMgr.getStatementTextForQuery(stmt, useUpdateLock);


        Object value=null;
        try
        {
            ManagedConnection mconn = storeMgr.getConnection(om);
            SQLController sqlControl = storeMgr.getSQLController();
            try
            {
                PreparedStatement ps = storeMgr.getStatementForQuery(stmt, om, mconn, useUpdateLock, null, null);
                try
                {
                    ResultSet rs = sqlControl.executeStatementQuery(mconn, statement, ps);
                    try
                    {
                        boolean found = rs.next();
                        if (!found)
                        {
                            throw new NoSuchElementException();
                        }


                        if (valuesAreEmbedded || valuesAreSerialised)
                        {
                            int param[] = new int[valueMapping.getNumberOfDatastoreFields()];
                            for (int i = 0; i < param.length; ++i)
                            {
                                param[i] = i + 1;
                            }


                            if (valueMapping instanceof SerialisedPCMapping ||
                                valueMapping instanceof SerialisedReferenceMapping ||
                                valueMapping instanceof EmbeddedKeyPCMapping)
                            {
                                // Value = Serialised
                                int ownerFieldNumber = -1;
                                if (mapTable != null)
                                {
                                    ownerFieldNumber = ((JoinTable)mapTable).getOwnerFieldMetaData().getAbsoluteFieldNumber();
                                }
                                value = valueMapping.getObject(om, rs, param, sm, ownerFieldNumber);
                            }
                            else
                            {
                                // Value = Non-PC
                                value = valueMapping.getObject(om, rs, param);
                            }
                        }
                        else if (valueMapping instanceof ReferenceMapping)
                        {
                            // Value = Reference (Interface/Object)
                            int param[] = new int[valueMapping.getNumberOfDatastoreFields()];
                            for (int i = 0; i < param.length; ++i)
                            {
                                param[i] = i + 1;
                            }
                            value = valueMapping.getObject(om, rs, param);
                        }
                        else
                        {
                            // Value = PC
                            value = rof.getObject(om, rs);
                        }


                        SQLWarnings.log(rs);
                    }
                    finally

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                        // Execute the query
                        ResultSet rs = sqlControl.executeStatementQuery(mconn, compiledSQL, ps);
                        try
                        {
                            ResultObjectFactory rof = null;
                            if (candidateClass != null)
                            {
                                ResultSetMetaData rsmd = rs.getMetaData();
                                HashSet remainingColumnNames = new HashSet(fieldColumnNames);

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        {
            throw new JPOXException(LOCALISER.msg("056005")).setFatal();
        }


        // Add the required field selections to the statement and get a factory for extracting them
        ResultObjectFactory rof = newResultObjectFactory(ownerSM, stmt, false, true);


        ObjectManager om = ownerSM.getObjectManager();
        Transaction tx = om.getTransaction();
        boolean useUpdateLock = ((Boolean)tx.getOptions().get("transaction.serializeReadObjects")).booleanValue();
        String statement = storeMgr.getStatementTextForQuery(stmt, useUpdateLock);

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        {
            throw new JPOXException(LOCALISER.msg("056005")).setFatal();
        }


        // Add the required field selections to the statement and get a factory for extracting them
        ResultObjectFactory rof = newResultObjectFactory(ownerSM, stmt, false, true);


        ObjectManager om = ownerSM.getObjectManager();
        Transaction tx = om.getTransaction();
        boolean useUpdateLock = ((Boolean)tx.getOptions().get("transaction.serializeReadObjects")).booleanValue();
        String statement = storeMgr.getStatementTextForQuery(stmt, useUpdateLock);

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org.jpox.store.rdbms.query.JPOXSQLQuery$JPOXSQLQueryEvaluator

org.jpox.store.rdbms.scostore.AbstractArrayStore

org.jpox.store.rdbms.scostore.AbstractListStore

org.jpox.store.rdbms.scostore.AbstractMapStore

org.jpox.store.rdbms.scostore.AbstractSetStore

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