Examples of com.espertech.esper.epl.join.assemble.BaseAssemblyNode

Package com.espertech.esper.epl.join.assemble

Examples of com.espertech.esper.epl.join.assemble.BaseAssemblyNode

com.espertech.esper.epl.join.assemble.BaseAssemblyNode
Represents a node in a tree responsible for assembling outer join query results.
The tree is double-linked, child nodes know each parent and parent know all child nodes.
Each specific subclass of this abstract assembly node is dedicated to assembling results for a certain event stream.

        // build list of instructions for lookup
        List<LookupInstructionPlan> lookupInstructions = buildLookupInstructions(streamNo, substreamsPerStream, requiredPerStream,
                streamNames, queryGraph, indexSpecs, typesPerStream, outerJoinDescList, ishistorical, historicalStreamIndexLists, exprEvaluatorContext);


        // build strategy tree for putting the result back together
        BaseAssemblyNode assemblyTopNode = AssemblyStrategyTreeBuilder.build(streamNo, substreamsPerStream, requiredPerStream);
        List<BaseAssemblyNode> assemblyInstructions = BaseAssemblyNode.getDescendentNodesBottomUp(assemblyTopNode);


        return new LookupInstructionQueryPlanNode(streamNo, streamNames[streamNo], numStreams, requiredPerStream,
                lookupInstructions, assemblyInstructions);
    }

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        // build list of instructions for lookup
        List<LookupInstructionPlan> lookupInstructions = buildLookupInstructions(streamNo, substreamsPerStream, requiredPerStream,
                streamNames, queryGraph, indexSpecs, typesPerStream, outerJoinDescList, ishistorical, historicalStreamIndexLists, exprEvaluatorContext);


        // build strategy tree for putting the result back together
        BaseAssemblyNode assemblyTopNode = AssemblyStrategyTreeBuilder.build(streamNo, substreamsPerStream, requiredPerStream);
        List<BaseAssemblyNode> assemblyInstructions = BaseAssemblyNode.getDescendentNodesBottomUp(assemblyTopNode);


        return new LookupInstructionQueryPlanNode(streamNo, streamNames[streamNo], numStreams, requiredPerStream,
                lookupInstructions, assemblyInstructions);
    }

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        List<Node>[] results = repository.getNodesPerStream();


        // no results - need to execute the very last instruction/top node
        if (results == null)
        {
            BaseAssemblyNode lastAssemblyNode = assemblyInstructions[assemblyInstructions.length - 1];
            lastAssemblyNode.init(null);
            lastAssemblyNode.process(null);
            return;
        }


        // we have results - execute all instructions
        BaseAssemblyNode assemblyNode;
        for (int i = 0; i < assemblyInstructions.length; i++)
        {
            assemblyNode = assemblyInstructions[i];
            assemblyNode.init(results);
        }
        for (int i = 0; i < assemblyInstructions.length; i++)
        {
            assemblyNode = assemblyInstructions[i];
            assemblyNode.process(results);
        }
    }

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        // build list of instructions for lookup
        List<LookupInstructionPlan> lookupInstructions = buildLookupInstructions(streamNo, substreamsPerStream, requiredPerStream,
                streamNames, queryGraph, indexSpecs, typesPerStream, outerJoinDescList, ishistorical, historicalStreamIndexLists, exprEvaluatorContext);


        // build strategy tree for putting the result back together
        BaseAssemblyNode assemblyTopNode = AssemblyStrategyTreeBuilder.build(streamNo, substreamsPerStream, requiredPerStream);
        List<BaseAssemblyNode> assemblyInstructions = BaseAssemblyNode.getDescendentNodesBottomUp(assemblyTopNode);


        return new LookupInstructionQueryPlanNode(streamNo, streamNames[streamNo], numStreams, requiredPerStream,
                lookupInstructions, assemblyInstructions);
    }

View Full Code Here

        // build list of instructions for lookup
        List<LookupInstructionPlan> lookupInstructions = buildLookupInstructions(streamNo, substreamsPerStream, requiredPerStream,
                streamNames, queryGraph, indexSpecs, typesPerStream, outerJoinDescList, ishistorical, historicalStreamIndexLists, exprEvaluatorContext);


        // build strategy tree for putting the result back together
        BaseAssemblyNode assemblyTopNode = AssemblyStrategyTreeBuilder.build(streamNo, substreamsPerStream, requiredPerStream);
        List<BaseAssemblyNode> assemblyInstructions = BaseAssemblyNode.getDescendentNodesBottomUp(assemblyTopNode);


        return new LookupInstructionQueryPlanNode(streamNo, streamNames[streamNo], numStreams, requiredPerStream,
                lookupInstructions, assemblyInstructions);
    }

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        List<Node>[] results = repository.getNodesPerStream();


        // no results - need to execute the very last instruction/top node
        if (results == null)
        {
            BaseAssemblyNode lastAssemblyNode = assemblyInstructions[assemblyInstructions.length - 1];
            lastAssemblyNode.init(null);
            lastAssemblyNode.process(null, resultFinalRows, lookupEvent);
            return;
        }


        // we have results - execute all instructions
        BaseAssemblyNode assemblyNode;
        for (int i = 0; i < assemblyInstructions.length; i++)
        {
            assemblyNode = assemblyInstructions[i];
            assemblyNode.init(results);
        }
        for (int i = 0; i < assemblyInstructions.length; i++)
        {
            assemblyNode = assemblyInstructions[i];
            assemblyNode.process(results, resultFinalRows, lookupEvent);
        }
    }

View Full Code Here

        // build list of instructions for lookup
        List<LookupInstructionPlan> lookupInstructions = buildLookupInstructions(streamNo, substreamsPerStream, requiredPerStream,
                streamNames, queryGraph, indexSpecs, typesPerStream, outerJoinDescList, ishistorical, historicalStreamIndexLists, exprEvaluatorContext);


        // build strategy tree for putting the result back together
        BaseAssemblyNode assemblyTopNode = AssemblyStrategyTreeBuilder.build(streamNo, substreamsPerStream, requiredPerStream);
        List<BaseAssemblyNode> assemblyInstructions = BaseAssemblyNode.getDescendentNodesBottomUp(assemblyTopNode);


        return new LookupInstructionQueryPlanNode(streamNo, streamNames[streamNo], numStreams, requiredPerStream,
                lookupInstructions, assemblyInstructions);
    }

View Full Code Here

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Related Classes of com.espertech.esper.epl.join.assemble.BaseAssemblyNode

com.espertech.esper.epl.join.exec.base.LookupInstructionExecNode

com.espertech.esper.epl.join.plan.NStreamOuterQueryPlanBuilder

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