Package org.drools.core.base

Examples of org.drools.core.base.DroolsQuery

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                             PropagationContext context,
                             InternalWorkingMemory workingMemory) {

            QueryTerminalNode node = (QueryTerminalNode) resultLeftTuple.getLeftTupleSink();
            Declaration[] decls = node.getDeclarations();
            DroolsQuery dquery = (DroolsQuery) this.factHandle.getObject();
            Object[] objects = new Object[dquery.getElements().length];

            Declaration decl;
            for (int i = 0, length = this.variables.length; i < length; i++) {
                decl = decls[this.variables[i]];
                objects[this.variables[i]] = decl.getValue(workingMemory,
                                                           resultLeftTuple.get(decl).getObject());
            }

            QueryElementFactHandle resultHandle = createQueryResultHandle(context,
                                                                          workingMemory,
                                                                          objects);

            RightTuple rightTuple = createResultRightTuple(resultHandle, resultLeftTuple, dquery.isOpen());

            this.node.getSinkPropagator().createChildLeftTuplesforQuery(this.leftTuple,
                                                                        rightTuple,
                                                                        true, // this must always be true, otherwise we can't
                                                                        // find the child tuples to iterate for evaluating the dquery results
                                                                        dquery.isOpen());

            RightTupleList rightTuples = dquery.getResultInsertRightTupleList();
            if (rightTuples == null) {
                rightTuples = new RightTupleList();
                dquery.setResultInsertRightTupleList(rightTuples);
                QueryResultInsertAction evalAction = new QueryResultInsertAction(context,
                                                                                 this.factHandle,
                                                                                 leftTuple,
                                                                                 this.node);
                context.getQueue2().addFirst(evalAction);
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                               final InternalWorkingMemory workingMemory) {
            RightTuple rightTuple = (RightTuple) resultLeftTuple.getObject();
            rightTuple.setLeftTuple(null);
            resultLeftTuple.setObject(null);

            DroolsQuery query = (DroolsQuery) this.factHandle.getObject();

            RightTupleList rightTuples = query.getResultRetractRightTupleList();
            if (rightTuples == null) {
                rightTuples = new RightTupleList();
                query.setResultRetractRightTupleList(rightTuples);
                QueryResultRetractAction retractAction = new QueryResultRetractAction(context,
                                                                                      this.factHandle,
                                                                                      leftTuple,
                                                                                      this.node);
                context.getQueue2().addFirst(retractAction);
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            // We need to recopy everything back again, as we don't know what has or hasn't changed
            QueryTerminalNode node = (QueryTerminalNode) resultLeftTuple.getLeftTupleSink();
            Declaration[] decls = node.getDeclarations();
            InternalFactHandle rootHandle = resultLeftTuple.get(0);
            DroolsQuery dquery = (DroolsQuery) rootHandle.getObject();

            Object[] objects = new Object[dquery.getElements().length];

            Declaration decl;
            for (int i = 0, length = this.variables.length; i < length; i++) {
                decl = decls[this.variables[i]];
                objects[this.variables[i]] = decl.getValue(workingMemory,
                                                           resultLeftTuple.get(decl).getObject());
            }

            QueryElementFactHandle handle = (QueryElementFactHandle) rightTuple.getFactHandle();

            handle.setRecency(workingMemory.getFactHandleFactory().getAtomicRecency().incrementAndGet());
            handle.setObject(objects);

            if (dquery.isOpen()) {
                rightTuple.setLeftTuple(resultLeftTuple);
                resultLeftTuple.setObject(rightTuple);
            }

            // Don't need to recreate child links, as they will already be there form the first "add"

            RightTupleList rightTuples = dquery.getResultUpdateRightTupleList();
            if (rightTuples == null) {
                rightTuples = new RightTupleList();
                dquery.setResultUpdateRightTupleList(rightTuples);
                QueryResultUpdateAction updateAction = new QueryResultUpdateAction(context,
                                                                                   this.factHandle,
                                                                                   leftTuple,
                                                                                   this.node);
                context.getQueue2().addFirst(updateAction);
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        public Action serialize(MarshallerWriteContext context) {
            throw new UnsupportedOperationException("Should not be present in network on serialisation");
        }

        public void execute(InternalWorkingMemory workingMemory) {
            DroolsQuery query = (DroolsQuery) factHandle.getObject();
            RightTupleList rightTuples = query.getResultInsertRightTupleList();
            query.setResultInsertRightTupleList(null); // null so further operations happen on a new stack element

            for (RightTuple rightTuple = rightTuples.getFirst(); rightTuple != null; ) {
                RightTuple tmp = (RightTuple) rightTuple.getNext();
                rightTuples.remove(rightTuple);
                for (LeftTuple childLeftTuple = rightTuple.firstChild; childLeftTuple != null; childLeftTuple = (LeftTuple) childLeftTuple.getRightParentNext()) {
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        public Action serialize(MarshallerWriteContext context) throws IOException {
            throw new UnsupportedOperationException("Should not be present in network on serialisation");
        }

        public void execute(InternalWorkingMemory workingMemory) {
            DroolsQuery query = (DroolsQuery) factHandle.getObject();
            RightTupleList rightTuples = query.getResultRetractRightTupleList();
            query.setResultRetractRightTupleList(null); // null so further operations happen on a new stack element

            for (RightTuple rightTuple = rightTuples.getFirst(); rightTuple != null; ) {
                RightTuple tmp = (RightTuple) rightTuple.getNext();
                rightTuples.remove(rightTuple);
                this.node.getSinkPropagator().propagateRetractRightTuple(rightTuple,
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        public Action serialize(MarshallerWriteContext context) {
            throw new UnsupportedOperationException("Should not be present in network on serialisation");
        }

        public void execute(InternalWorkingMemory workingMemory) {
            DroolsQuery query = (DroolsQuery) factHandle.getObject();
            RightTupleList rightTuples = query.getResultUpdateRightTupleList();
            query.setResultUpdateRightTupleList(null); // null so further operations happen on a new stack element

            for (RightTuple rightTuple = rightTuples.getFirst(); rightTuple != null; ) {
                RightTuple tmp = (RightTuple) rightTuple.getNext();
                rightTuples.remove(rightTuple);
                this.node.getSinkPropagator().propagateModifyChildLeftTuple(rightTuple.firstChild,
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                                final PropagationContext context,
                                final InternalWorkingMemory workingMemory) {
        // find the DroolsQuery object
        LeftTuple entry = leftTuple.getRootLeftTuple();

        DroolsQuery query = (DroolsQuery) entry.getLastHandle().getObject();
        query.setQuery( this.query );

        // Add results to the adapter
        query.getQueryResultCollector().rowAdded( this.query,
                                                  leftTuple,
                                                  context,
                                                  workingMemory );
    }
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                                 final InternalWorkingMemory workingMemory) {
        // find the DroolsQuery object

        LeftTuple entry = leftTuple.getRootLeftTuple();

        DroolsQuery query = (DroolsQuery) entry.getLastHandle().getObject();
        query.setQuery( this.query );

        // Add results to the adapter
        query.getQueryResultCollector().rowRemoved( this.query,
                                                    leftTuple,
                                                    context,
                                                    workingMemory );
    }
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                                PropagationContext context,
                                InternalWorkingMemory workingMemory) {
        // find the DroolsQuery object
        LeftTuple entry = leftTuple.getRootLeftTuple();

        DroolsQuery query = (DroolsQuery) entry.getLastHandle().getObject();
        query.setQuery( this.query );

        // Add results to the adapter
        query.getQueryResultCollector().rowUpdated( this.query,
                                                    leftTuple,
                                                    context,
                                                    workingMemory );
    }
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        // the next call makes sure this node's memory is initialised
        workingMemory.getNodeMemory(this);

        InternalFactHandle handle = createFactHandle(context, workingMemory, leftTuple);

        DroolsQuery queryObject = createDroolsQuery(leftTuple, handle,
                                                    null, null, null, null, null,
                                                    workingMemory);

        QueryInsertAction action = new QueryInsertAction(context,
                                                         handle,
                                                         leftTuple,
                                                         this);
        queryObject.setAction(action); // this is necessary as queries can be re-entrant, so we can check this before re-sheduling
        // another action in the modify section. Make sure it's nulled after the action is done
        // i.e. scheduling an insert and then an update, before the insert is executed
        context.addInsertAction(action);

    }
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Related Classes of org.drools.core.base.DroolsQuery

  • org.drools.core.common.AbstractWorkingMemory
  • org.drools.core.impl.StatefulKnowledgeSessionImpl
  • org.drools.core.marshalling.impl.InputMarshaller
  • org.drools.core.marshalling.impl.OutputMarshaller
  • org.drools.core.phreak.PhreakQueryNode
  • org.drools.core.phreak.PhreakQueryTerminalNode
  • org.drools.core.phreak.RuleNetworkEvaluator$PhreakQueryNode
  • org.drools.core.phreak.RuleNetworkEvaluator$PhreakQueryTerminalNode
  • org.drools.core.reteoo.QueryElementNode
  • org.drools.core.reteoo.QueryElementNode$UnificationNodeViewChangedEventListener
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