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());

            LeftTupleSink sink = dquery.getLeftTupleSink();
            LeftTuple childLeftTuple = sink.createLeftTuple( this.leftTuple, rightTuple, sink );
            boolean stagedInsertWasEmpty = dquery.getResultLeftTupleSets().addInsert(childLeftTuple);
            if ( stagedInsertWasEmpty ) {
                dquery.getQueryNodeMemory().setNodeDirtyWithoutNotify();
            }


        }
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                               final InternalWorkingMemory workingMemory) {
            RightTuple rightTuple = (RightTuple) resultLeftTuple.getObject();
            rightTuple.setLeftTuple( null );
            resultLeftTuple.setObject( null );

            DroolsQuery query = (DroolsQuery) this.factHandle.getObject();
            LeftTupleSets leftTuples = query.getResultLeftTupleSets();
            LeftTuple childLeftTuple = rightTuple.getFirstChild();

            switch ( childLeftTuple.getStagedType() ) {
                // handle clash with already staged entries
                case LeftTuple.INSERT :
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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 );
            }

            LeftTupleSets leftTuples = dquery.getResultLeftTupleSets();
            LeftTuple childLeftTuple = rightTuple.getFirstChild();
            switch ( childLeftTuple.getStagedType() ) {
                // handle clash with already staged entries
                case LeftTuple.INSERT :
                    leftTuples.removeInsert( childLeftTuple );
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        return evaluate(handle.getObject(), mvelContextEntry.workingMemory, mvelContextEntry.leftTuple);
    }

    public boolean isAllowedCachedRight(LeftTuple tuple, ContextEntry context) {
        if (isUnification) {
            DroolsQuery query = ( DroolsQuery ) tuple.get( 0 ).getObject();
            Variable v = query.getVariables()[ ((UnificationContextEntry)context).getReader().getIndex() ];

            if (v != null) {
                return true;
            }
            context = ((UnificationContextEntry)context).getContextEntry();
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            this.contextEntry.updateFromFactHandle( workingMemory, handle );
        }

        public void updateFromTuple(InternalWorkingMemory workingMemory,
                                    LeftTuple tuple) {
            DroolsQuery query = ( DroolsQuery ) tuple.get( 0 ).getObject();
            Variable v = query.getVariables()[ this.reader.getIndex() ];
            if ( v == null ) {
                // if there is no Variable, handle it as a normal constraint
                this.variable = null;
                this.contextEntry.updateFromTuple( workingMemory, tuple );
            } else {
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            if ( object instanceof DroolsQuery && !((DroolsQuery) object).isOpen() ) {
                executeAsOpenQuery = false;
            }         
        }

        DroolsQuery queryObject = new DroolsQuery( this.queryElement.getQueryName(),
                                                   args,
                                                   collector,
                                                   executeAsOpenQuery,
                                                   stackEntry,
                                                   pmems,
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            this.ruleBase.readLock();

            this.ruleBase.executeQueuedActions();
            executeQueuedActions();

            DroolsQuery queryObject = new DroolsQuery( queryName,
                                                       arguments,
                                                       getQueryListenerInstance(),
                                                       false ,
                                                       null,
                                                       null,
                                                       null,
                                                       null,
                                                       null );

            InternalFactHandle handle = this.handleFactory.newFactHandle( queryObject,
                                                                          null,
                                                                          this,
                                                                          this );

            final PropagationContext pCtx = pctxFactory.createPropagationContext(getNextPropagationIdCounter(), PropagationContext.INSERTION,
                                                                                 null, null, handle, getEntryPoint());


            BaseNode[] tnodes = evalQuery(queryName, queryObject, handle, pCtx);

            List<Map<String, Declaration>> decls = new ArrayList<Map<String, Declaration>>();
            if ( tnodes != null ) {
                for ( BaseNode node : tnodes ) {
                    decls.add( ((QueryTerminalNode) node).getSubRule().getOuterDeclarations() );
                }
            }

            executeQueuedActions();

            this.handleFactory.destroyFactHandle( handle );

            return new QueryResults( (List<QueryRowWithSubruleIndex>) queryObject.getQueryResultCollector().getResults(),
                                     decls.toArray( new Map[decls.size()] ),
                                     this,
                                     ( queryObject.getQuery() != null ) ? queryObject.getQuery().getParameters()  : new Declaration[0] );
        } finally {
            this.ruleBase.readUnlock();
            this.lock.unlock();
            endOperation();
        }
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            this.lock.lock();

            this.ruleBase.executeQueuedActions();
            executeQueuedActions();

            DroolsQuery queryObject = new DroolsQuery( query,
                                                       arguments,
                                                       new OpenQueryViewChangedEventListenerAdapter( listener ),
                                                       true,
                                                       null,
                                                       null,
                                                       null,
                                                       null,
                                                       null );
            InternalFactHandle handle = this.handleFactory.newFactHandle( queryObject,
                                                                          null,
                                                                          this,
                                                                          this );

            final PropagationContext pCtx = pctxFactory.createPropagationContext(getNextPropagationIdCounter(), PropagationContext.INSERTION,
                                                                                 null, null, handle, getEntryPoint());

            BaseNode[] tnodes = evalQuery(queryObject.getName(), queryObject, handle, pCtx);

            executeQueuedActions();

            return new LiveQueryImpl( this,
                                      handle );
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        return evaluate(handle.getObject(), mvelContextEntry.workingMemory, mvelContextEntry.leftTuple);
    }

    public boolean isAllowedCachedRight(LeftTuple tuple, ContextEntry context) {
        if (isUnification) {
            DroolsQuery query = ( DroolsQuery ) tuple.get( 0 ).getObject();
            Variable v = query.getVariables()[ ((UnificationContextEntry)context).getReader().getIndex() ];

            if (v != null) {
                return true;
            }
            context = ((UnificationContextEntry)context).getContextEntry();
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            this.contextEntry.updateFromFactHandle( workingMemory, handle );
        }

        public void updateFromTuple(InternalWorkingMemory workingMemory,
                                    LeftTuple tuple) {
            DroolsQuery query = ( DroolsQuery ) tuple.get( 0 ).getObject();
            Variable v = query.getVariables()[ this.reader.getIndex() ];
            if ( v == null ) {
                // if there is no Variable, handle it as a normal constraint
                this.variable = null;
                this.contextEntry.updateFromTuple( workingMemory, tuple );
            } else {
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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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