Examples of com.foundationdb.qp.operator.QueryBindings

com.foundationdb.qp.operator.QueryBindings
The bindings associated with the execution of a query. This includes query parameters (? markers) as well as current values for iteration. More than one QueryBindings may be active at the same time if iteration is being done in parallel for pipelining.

                to(Stage.PRE_SCAN);
                Schema schema = SchemaCache.globalSchema(getServiceHolder().getSchemaManager().getAis(session));
                Operator plan = operatorCreator.create(schema);
                StoreAdapter adapter = getServiceHolder().getStore().createAdapter(session, schema);
                QueryContext context = new SimpleQueryContext(adapter);
                QueryBindings bindings = context.createBindings();
                Cursor cursor = API.cursor(plan, context, bindings);
                cursor.openTopLevel();
                try {
                    Row row;
                    while((row = cursor.next()) != null) {

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            public List<Row> call() throws Exception {
                Schema schema = SchemaCache.globalSchema(ais());
                Operator plan = creator.create(schema);
                StoreAdapter adapter = store().createAdapter(session(), schema);
                QueryContext context = new SimpleQueryContext(adapter, serviceManager());
                QueryBindings bindings = context.createBindings();
                List<Row> rows = new ArrayList<>();
                Cursor cursor = API.cursor(plan, context, bindings);
                cursor.openTopLevel();
                try {
                    Row row;

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                @Override
                public ServiceManager getServiceManager() {
                    return serviceManager;
                }
            };
        QueryBindings queryBindings = queryContext.createBindings();
        JsonRowWriter json = new JsonRowWriter(new TableRowTracker(table, depth));
        WriteTableRow rowWriter = new WriteTableRow();
        AkibanAppender appender = AkibanAppender.of(writer);
        boolean transaction = false;
        Cursor cursor = null;
        try {
            if (withTransaction) {
                transactionService.beginTransaction(session);
                transaction = true;
            }
            cursor = API.cursor(plan, queryContext, queryBindings);
            appender.append("[");
            boolean begun = false;


            if (keys == null) {
                begun = json.writeRows(cursor, appender, "\n", rowWriter, options);
            } else {
                for (List<Object> key : keys) {
                    for (int i = 0; i < key.size(); i++) {
                        ValueSource value = ValueSources.fromObject(key.get(i), null).value();
                        queryBindings.setValue(i, value);
                    }
                    if (json.writeRows(cursor, appender, begun ? ",\n" : "\n", rowWriter, options))
                        begun = true;
                }
            }

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    }


    private void updateIndex(Session session, FullTextIndexInfo indexInfo, Iterable<byte[]> rows) throws IOException {
        StoreAdapter adapter = store.createAdapter(session, indexInfo.getSchema());
        QueryContext queryContext = new SimpleQueryContext(adapter);
        QueryBindings queryBindings = queryContext.createBindings();


        Cursor cursor = null;
        IndexWriter writer = indexInfo.getIndexer().getWriter();
        try(RowIndexer rowIndexer = new RowIndexer(indexInfo, writer, true)) {
            Operator operator = indexInfo.getOperator();
            Iterator<byte[]> it = rows.iterator();
            while(it.hasNext()) {
                byte[] row = it.next();
                Row hkeyRow = toHKeyRow(row, indexInfo.getHKeyRowType(), adapter);
                queryBindings.setRow(0, hkeyRow);
                cursor = API.cursor(operator, queryContext, queryBindings);
                rowIndexer.updateDocument(cursor, row);
                it.remove();
            }
        } finally {

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                                                 RowData rowData)
    {
        Operator plan = PlanGenerator.generateBranchPlan(table.getAIS(), table);
        StoreAdapter adapter = createAdapter(session, SchemaCache.globalSchema(table.getAIS()));
        QueryContext queryContext = new SimpleQueryContext(adapter);
        QueryBindings queryBindings = queryContext.createBindings();
        Cursor cursor = API.cursor(plan, queryContext, queryBindings);


        List<Column> lookupCols = table.getPrimaryKeyIncludingInternal().getColumns();
        RowDataValueSource pSource = new RowDataValueSource();
        for(int i = 0; i < lookupCols.size(); ++i) {
            Column col = lookupCols.get(i);
            pSource.bind(col.getFieldDef(), rowData);
            queryBindings.setValue(i, pSource);
        }
        try {
            Row row;
            cursor.openTopLevel();
            while((row = cursor.next()) != null) {

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    }


    private Cursor cursor(Operator plan) {
        StoreAdapter adapter = newStoreAdapter(schema);
        QueryContext context = queryContext(adapter);
        QueryBindings bindings = context.createBindings();
        return API.cursor(plan, context, bindings);
    }

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    }


    public static QueryBindings setParameters(QueryBindings bindings, ServerCallInvocation invocation) {
        if (!invocation.parametersInOrder()) {
            if (invocation.hasParameters()) {
                QueryBindings calleeBindings = new SparseArrayQueryBindings();
                invocation.copyParameters(bindings, calleeBindings);
                bindings = calleeBindings;
            }
            else {
                invocation.copyParameters(null, bindings);

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    }


    protected static QueryBindings setParameters(QueryBindings bindings, ServerCallInvocation invocation) {
        if (!invocation.parametersInOrder()) {
            if (invocation.hasParameters()) {
                QueryBindings calleeBindings = new SparseArrayQueryBindings();
                invocation.copyParameters(bindings, calleeBindings);
                bindings = calleeBindings;
            }
            else {
                invocation.copyParameters(null, bindings);

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    public static Explainable explainable(PostgresServerSession server,
                                          ServerCallInvocation invocation,
                                          List<ParameterNode> params, int[] paramTypes) {
        PostgresJavaRoutine routine = (PostgresJavaRoutine)statement(server, invocation, params, paramTypes);
        PostgresQueryContext context = new PostgresQueryContext(server);
        QueryBindings bindings = context.createBindings();
        return routine.javaRoutine(context, bindings);
    }

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        }


        sessionMonitor.startStatement(sql, startTime);


        PostgresQueryContext context = new PostgresQueryContext(this);
        QueryBindings bindings = context.createBindings(); // Empty of parameters.
        updateAIS(context);
        
        PostgresStatement pstmt = null;
        if (statementCache != null)
            pstmt = statementCache.get(sql);

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