Package org.datanucleus.query.expression

Examples of org.datanucleus.query.expression.PrimaryExpression

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                    }
                    resultDefinition.addMappingForResultExpression(i, idx);
                }
                else if (resultExprs[i] instanceof PrimaryExpression)
                {
                    PrimaryExpression primExpr = (PrimaryExpression)resultExprs[i];
                    if (primExpr.getId().equals(candidateAlias))
                    {
                        // "this", so select fetch plan fields
                        StatementClassMapping map = new StatementClassMapping(candidateCmd.getFullClassName(), null);
                        SQLStatementHelper.selectFetchPlanOfCandidateInStatement(stmt, map,
                            candidateCmd, fetchPlan, 1);
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            if (rightExpr instanceof JoinExpression)
            {
                JoinExpression joinExpr = (JoinExpression)rightExpr;
                JoinType joinType = joinExpr.getType();
                String joinAlias = joinExpr.getAlias();
                PrimaryExpression joinPrimExpr = joinExpr.getPrimaryExpression();

                Iterator<String> iter = joinPrimExpr.getTuples().iterator();
                String rootId = iter.next();
                String joinTableGroupName = null;
                if (rootId.equalsIgnoreCase(candidateAlias))
                {
                    // Join relative to the candidate
                    // Name table group of joined-to as per the relation
                    // Note : this will only work for one level out from the candidate TODO Extend this
                    joinTableGroupName = joinPrimExpr.getId();
                }
                else
                {
                    // Join relative to some other alias
                    SQLTableMapping sqlTblMapping = getSQLTableMappingForAlias(rootId);
                    if (sqlTblMapping != null)
                    {
                        cmd = sqlTblMapping.cmd;
                        joinTableGroupName = sqlTblMapping.table.getGroupName();
                        sqlTbl = sqlTblMapping.table;
                    }
                    else
                    {
                        throw new NucleusUserException("Query has " + joinPrimExpr.getId() + " yet the first component "+
                            rootId + " is unknown!");
                    }
                }

                while (iter.hasNext())
                {
                    String id = iter.next();
                    AbstractMemberMetaData mmd = cmd.getMetaDataForMember(id);
                    int relationType = mmd.getRelationType(clr);
                    DatastoreClass relTable = null;
                    AbstractMemberMetaData relMmd = null;
                    // TODO Cater for map in 1-N relations?
                    switch (relationType)
                    {
                        case Relation.ONE_TO_ONE_UNI:
                            relTable = storeMgr.getDatastoreClass(mmd.getTypeName(), clr);
                            cmd = mmgr.getMetaDataForClass(mmd.getType(), clr);
                            if (joinType == JoinType.JOIN_INNER || joinType == JoinType.JOIN_INNER_FETCH)
                            {
                                sqlTbl = stmt.innerJoin(sqlTbl, sqlTbl.getTable().getMemberMapping(mmd),
                                    relTable, null, relTable.getIdMapping(), null, joinTableGroupName);
                            }
                            else
                            {
                                sqlTbl = stmt.leftOuterJoin(sqlTbl, sqlTbl.getTable().getMemberMapping(mmd),
                                    relTable, null, relTable.getIdMapping(), null, joinTableGroupName);
                            }
                            break;
                        case Relation.ONE_TO_ONE_BI:
                            relTable = storeMgr.getDatastoreClass(mmd.getTypeName(), clr);
                            cmd = storeMgr.getMetaDataManager().getMetaDataForClass(mmd.getType(), clr);
                            if (mmd.getMappedBy() != null)
                            {
                                relMmd = mmd.getRelatedMemberMetaData(clr)[0];
                                if (joinType == JoinType.JOIN_INNER || joinType == JoinType.JOIN_INNER_FETCH)
                                {
                                    sqlTbl = stmt.innerJoin(sqlTbl, sqlTbl.getTable().getIdMapping(),
                                        relTable, null, relTable.getMemberMapping(relMmd), null, joinTableGroupName);
                                }
                                else
                                {
                                    sqlTbl = stmt.leftOuterJoin(sqlTbl, sqlTbl.getTable().getIdMapping(),
                                        relTable, null, relTable.getMemberMapping(relMmd), null, joinTableGroupName);
                                }
                            }
                            else
                            {
                                if (joinType == JoinType.JOIN_INNER || joinType == JoinType.JOIN_INNER_FETCH)
                                {
                                    sqlTbl = stmt.innerJoin(sqlTbl, sqlTbl.getTable().getMemberMapping(mmd), relTable, null,
                                        relTable.getIdMapping(), null, joinTableGroupName);
                                }
                                else
                                {
                                    sqlTbl = stmt.leftOuterJoin(sqlTbl, sqlTbl.getTable().getMemberMapping(mmd), relTable, null,
                                        relTable.getIdMapping(), null, joinTableGroupName);
                                }
                            }
                            break;
                        case Relation.ONE_TO_MANY_BI:
                            relTable = storeMgr.getDatastoreClass(mmd.getCollection().getElementType(), clr);
                            cmd = mmd.getCollection().getElementClassMetaData(clr, mmgr);
                            relMmd = mmd.getRelatedMemberMetaData(clr)[0];
                            if (mmd.getJoinMetaData() != null || relMmd.getJoinMetaData() != null)
                            {
                                // Join to join table, then to related table
                                ElementContainerTable joinTbl = (ElementContainerTable)storeMgr.getDatastoreContainerObject(mmd);
                                if (joinType == JoinType.JOIN_INNER || joinType == JoinType.JOIN_INNER_FETCH)
                                {
                                    SQLTable joinSqlTbl = stmt.innerJoin(sqlTbl, sqlTbl.getTable().getIdMapping(),
                                        joinTbl, null, joinTbl.getOwnerMapping(), null, null);
                                    sqlTbl = stmt.innerJoin(joinSqlTbl, joinTbl.getElementMapping(),
                                        relTable, null, relTable.getIdMapping(), null, joinTableGroupName);
                                }
                                else
                                {
                                    SQLTable joinSqlTbl = stmt.leftOuterJoin(sqlTbl, sqlTbl.getTable().getIdMapping(),
                                        joinTbl, null, joinTbl.getOwnerMapping(), null, null);
                                    sqlTbl = stmt.leftOuterJoin(joinSqlTbl, joinTbl.getElementMapping(),
                                        relTable, null, relTable.getIdMapping(), null, joinTableGroupName);
                                }
                            }
                            else
                            {
                                // Join to related table
                                if (joinType == JoinType.JOIN_INNER || joinType == JoinType.JOIN_INNER_FETCH)
                                {
                                    sqlTbl = stmt.innerJoin(sqlTbl, sqlTbl.getTable().getIdMapping(),
                                        relTable, null, relTable.getMemberMapping(relMmd), null, joinTableGroupName);
                                }
                                else
                                {
                                    sqlTbl = stmt.leftOuterJoin(sqlTbl, sqlTbl.getTable().getIdMapping(),
                                        relTable, null, relTable.getMemberMapping(relMmd), null, joinTableGroupName);
                                }
                            }
                            break;
                        case Relation.ONE_TO_MANY_UNI:
                            relTable = storeMgr.getDatastoreClass(mmd.getCollection().getElementType(), clr);
                            cmd = mmd.getCollection().getElementClassMetaData(clr, mmgr);
                            if (mmd.getJoinMetaData() != null)
                            {
                                // Join to join table, then to related table
                                ElementContainerTable joinTbl = (ElementContainerTable)storeMgr.getDatastoreContainerObject(mmd);
                                if (joinType == JoinType.JOIN_INNER || joinType == JoinType.JOIN_INNER_FETCH)
                                {
                                    SQLTable joinSqlTbl = stmt.innerJoin(sqlTbl, sqlTbl.getTable().getIdMapping(),
                                        joinTbl, null, joinTbl.getOwnerMapping(), null, null);
                                    sqlTbl = stmt.innerJoin(joinSqlTbl, joinTbl.getElementMapping(),
                                        relTable, null, relTable.getIdMapping(), null, joinTableGroupName);
                                }
                                else
                                {
                                    SQLTable joinSqlTbl = stmt.leftOuterJoin(sqlTbl, sqlTbl.getTable().getIdMapping(),
                                        joinTbl, null, joinTbl.getOwnerMapping(), null, null);
                                    sqlTbl = stmt.leftOuterJoin(joinSqlTbl, joinTbl.getElementMapping(),
                                        relTable, null, relTable.getIdMapping(), null, joinTableGroupName);
                                }
                            }
                            else
                            {
                                // Join to related table
                                JavaTypeMapping relMapping = relTable.getExternalMapping(mmd, MappingConsumer.MAPPING_TYPE_EXTERNAL_FK);
                                if (joinType == JoinType.JOIN_INNER || joinType == JoinType.JOIN_INNER_FETCH)
                                {
                                    sqlTbl = stmt.innerJoin(sqlTbl, sqlTbl.getTable().getIdMapping(),
                                        relTable, null, relMapping, null, joinTableGroupName);
                                }
                                else
                                {
                                    sqlTbl = stmt.leftOuterJoin(sqlTbl, sqlTbl.getTable().getIdMapping(),
                                        relTable, null, relMapping, null, joinTableGroupName);
                                }
                            }
                            break;
                        case Relation.MANY_TO_MANY_BI:
                            relTable = storeMgr.getDatastoreClass(mmd.getCollection().getElementType(), clr);
                            cmd = mmd.getCollection().getElementClassMetaData(clr, mmgr);
                            relMmd = mmd.getRelatedMemberMetaData(clr)[0];
                            // Join to join table, then to related table
                            CollectionTable joinTbl = (CollectionTable)storeMgr.getDatastoreContainerObject(mmd);
                            if (joinType == JoinType.JOIN_INNER || joinType == JoinType.JOIN_INNER_FETCH)
                            {
                                SQLTable joinSqlTbl = stmt.innerJoin(sqlTbl, sqlTbl.getTable().getIdMapping(),
                                    joinTbl, null, joinTbl.getOwnerMapping(), null, null);
                                sqlTbl = stmt.innerJoin(joinSqlTbl, joinTbl.getElementMapping(),
                                    relTable, null, relTable.getIdMapping(), null, joinTableGroupName);
                            }
                            else
                            {
                                SQLTable joinSqlTbl = stmt.leftOuterJoin(sqlTbl, sqlTbl.getTable().getIdMapping(),
                                    joinTbl, null, joinTbl.getOwnerMapping(), null, null);
                                sqlTbl = stmt.leftOuterJoin(joinSqlTbl, joinTbl.getElementMapping(),
                                    relTable, null, relTable.getIdMapping(), null, joinTableGroupName);
                            }
                            break;
                        case Relation.MANY_TO_ONE_BI:
                            relTable = storeMgr.getDatastoreClass(mmd.getTypeName(), clr);
                            cmd = storeMgr.getMetaDataManager().getMetaDataForClass(mmd.getType(), clr);
                            relMmd = mmd.getRelatedMemberMetaData(clr)[0];
                            if (mmd.getJoinMetaData() != null || relMmd.getJoinMetaData() != null)
                            {
                                // Join to join table, then to related table
                                joinTbl = (CollectionTable)storeMgr.getDatastoreContainerObject(relMmd);
                                if (joinType == JoinType.JOIN_INNER || joinType == JoinType.JOIN_INNER_FETCH)
                                {
                                    SQLTable joinSqlTbl = stmt.innerJoin(sqlTbl, sqlTbl.getTable().getIdMapping(),
                                        joinTbl, null, joinTbl.getElementMapping(), null, null);
                                    sqlTbl = stmt.innerJoin(joinSqlTbl, joinTbl.getOwnerMapping(),
                                        relTable, null, relTable.getIdMapping(), null, joinTableGroupName);
                                }
                                else
                                {
                                    SQLTable joinSqlTbl = stmt.leftOuterJoin(sqlTbl, sqlTbl.getTable().getIdMapping(),
                                        joinTbl, null, joinTbl.getElementMapping(), null, null);
                                    sqlTbl = stmt.leftOuterJoin(joinSqlTbl, joinTbl.getOwnerMapping(),
                                        relTable, null, relTable.getIdMapping(), null, joinTableGroupName);
                                }
                            }
                            else
                            {
                                // Join to owner table
                                JavaTypeMapping fkMapping = sqlTbl.getTable().getMemberMapping(mmd);
                                if (joinType == JoinType.JOIN_INNER || joinType == JoinType.JOIN_INNER_FETCH)
                                {
                                    sqlTbl = stmt.innerJoin(sqlTbl, fkMapping,
                                        relTable, null, relTable.getIdMapping(), null, joinTableGroupName);
                                }
                                else
                                {
                                    sqlTbl = stmt.leftOuterJoin(sqlTbl, fkMapping,
                                        relTable, null, relTable.getIdMapping(), null, joinTableGroupName);
                                }
                            }
                            break;
                        default:
                            break;
                    }
                }

                if (joinAlias != null)
                {
                    if (explicitJoinPrimaryByAlias == null)
                    {
                        explicitJoinPrimaryByAlias = new HashMap<String, String>();
                    }
                    explicitJoinPrimaryByAlias.put(joinAlias, joinPrimExpr.getId());
                }

                SQLTableMapping tblMapping = new SQLTableMapping(sqlTbl, cmd, sqlTbl.getTable().getIdMapping());
                setSQLTableMappingForAlias(joinAlias, tblMapping);
            }
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                if (indexArgs == null || indexArgs.size() > 1)
                {
                    throw new NucleusException("Can only use INDEX with single argument");
                }

                PrimaryExpression indexExpr = (PrimaryExpression)indexArgs.get(0);
                String joinAlias = indexExpr.getId();
                String collExprName = joinAlias;
                if (explicitJoinPrimaryByAlias != null)
                {
                    collExprName = explicitJoinPrimaryByAlias.get(joinAlias);
                    if (collExprName == null)
                    {
                        throw new NucleusException("Unable to locate primary expression for alias " + joinAlias);
                    }
                }

                // Find an expression for the collection field
                List<String> tuples = new ArrayList<String>();
                StringTokenizer primTokenizer = new StringTokenizer(collExprName, ".");
                while (primTokenizer.hasMoreTokens())
                {
                    String token = primTokenizer.nextToken();
                    tuples.add(token);
                }
                PrimaryExpression collPrimExpr = new PrimaryExpression(tuples);
                processPrimaryExpression(collPrimExpr);
                SQLExpression collSqlExpr = stack.pop();
                sqlExprArgs.add(collSqlExpr);
            }
        }
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     * @see org.datanucleus.query.evaluator.memory.InvocationEvaluator#evaluate(org.datanucleus.query.expression.InvokeExpression, org.datanucleus.query.evaluator.memory.InMemoryExpressionEvaluator)
     */
    public Object evaluate(InvokeExpression expr, Object invokedValue, InMemoryExpressionEvaluator eval)
    {
        // TODO Check whether first param is primary expression?
        PrimaryExpression paramExpr = (PrimaryExpression)expr.getArguments().get(0);
        Object value = eval.getValueForPrimaryExpression(paramExpr);
        return JDOHelper.getVersion(value);
    }
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        Object arg1Obj = null;
        Object param = expr.getArguments().get(0);
        if (param instanceof PrimaryExpression)
        {
            PrimaryExpression primExpr = (PrimaryExpression)param;
            arg1Obj = eval.getValueForPrimaryExpression(primExpr);
        }
        else if (param instanceof ParameterExpression)
        {
            ParameterExpression paramExpr = (ParameterExpression)param;
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        String method = expr.getOperation();
        Object param = expr.getArguments().get(0);
        Object paramValue = null;
        if (param instanceof PrimaryExpression)
        {
            PrimaryExpression primExpr = (PrimaryExpression)param;
            paramValue = eval.getValueForPrimaryExpression(primExpr);
        }
        else if (param instanceof ParameterExpression)
        {
            ParameterExpression paramExpr = (ParameterExpression)param;
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        String method = expr.getOperation();
        Object param = expr.getArguments().get(0);
        Object paramValue = null;
        if (param instanceof PrimaryExpression)
        {
            PrimaryExpression primExpr = (PrimaryExpression)param;
            paramValue = eval.getValueForPrimaryExpression(primExpr);
        }
        else if (param instanceof ParameterExpression)
        {
            ParameterExpression paramExpr = (ParameterExpression)param;
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     * @see org.datanucleus.query.evaluator.AbstractExpressionEvaluator#processComExpression(org.datanucleus.query.expression.Expression)
     */
    protected Object processComExpression(Expression expr)
    {
        // Bitwise complement - only for integer values
        PrimaryExpression primExpr = (PrimaryExpression)expr.getLeft();
        Object primVal = getValueForPrimaryExpression(primExpr);
        int val = -1;
        if (primVal instanceof Number)
        {
            val = ((Number)primVal).intValue();
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            NucleusLogger.QUERY.info("Please note that any escape character is currently ignored");
            // TODO Cater for optional second argument that is the escape character
        }
        if (param instanceof PrimaryExpression)
        {
            PrimaryExpression primExpr = (PrimaryExpression)param;
            argObj = eval.getValueForPrimaryExpression(primExpr);
        }
        else if (param instanceof ParameterExpression)
        {
            ParameterExpression paramExpr = (ParameterExpression)param;
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     * @see org.datanucleus.query.evaluator.memory.InvocationEvaluator#evaluate(org.datanucleus.query.expression.InvokeExpression, org.datanucleus.query.evaluator.memory.InMemoryExpressionEvaluator)
     */
    public Object evaluate(InvokeExpression expr, Object invokedValue, InMemoryExpressionEvaluator eval)
    {
        // TODO Check whether first param is primary expression?
        PrimaryExpression paramExpr = (PrimaryExpression)expr.getArguments().get(0);
        Object value = eval.getValueForPrimaryExpression(paramExpr);
        return JDOHelper.getObjectId(value);
    }
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