Examples of co.paralleluniverse.galaxy.cluster.DistributedBranchHelper

Package co.paralleluniverse.galaxy.cluster

Examples of co.paralleluniverse.galaxy.cluster.DistributedBranchHelper

co.paralleluniverse.galaxy.cluster.DistributedBranchHelper
Helps deal with a branch of a distributed tree, when we want to consider the nodes only when they have given sub-nodes ("required properties").
If the underlying nodes are ordered and the helper is constructed with the ordered option, the handlers are called in the order the main nodes (the branch's children) were originally created, not the order in which they've become "completed" (their required properties satisfied)! Important: Assumes that once required properties are set they are never removed or unset (set to null), though they can be changed. @author pron

            }
        }


        /// the calls in the demarcated section need to be in this specific order to avoid a possible race between nodes and leaders
        // `>>>> BEGIN CAREFULLY ORDERED SECTION
        branch = new DistributedBranchHelper(controlTree, NODES, false) {
            @Override
            protected boolean isNodeComplete(String node, Set<String> properties) {
                if (!properties.contains("id")) {
                    return false;
                }

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            }
        }


        /// the calls in the demarcated section need to be in this specific order to avoid a possible race between nodes and leaders
        // `>>>> BEGIN CAREFULLY ORDERED SECTION
        branch = new DistributedBranchHelper(controlTree, NODES, false) {
            @Override
            protected boolean isNodeComplete(String node, Set<String> properties) {
                if (!properties.contains("id")) {
                    return false;
                }

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            }
        }


        /// the calls in the demarcated section need to be in this specific order to avoid a possible race between nodes and leaders
        // `>>>> BEGIN CAREFULLY ORDERED SECTION
        branch = new DistributedBranchHelper(controlTree, NODES, false) {
            @Override
            protected boolean isNodeComplete(String node, Set<String> properties) {
                if (!properties.contains("id")) {
                    return false;
                }

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        branch = null;
    }


    private void createBranch(boolean ordered) {
        final Set<String> requiredProperties = ImmutableSet.of("a", "b");
        branch = new DistributedBranchHelper(mdt.tree, ROOT, ordered) {
            @Override
            protected boolean isNodeComplete(String node, Set<String> properties) {
                return properties.containsAll(requiredProperties);
            }
        };

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            }
        }


        /// the calls in the demarcated section need to be in this specific order to avoid a possible race between nodes and leaders
        // `>>>> BEGIN CAREFULLY ORDERED SECTION
        branch = new DistributedBranchHelper(controlTree, NODES, false) {
            @Override
            protected boolean isNodeComplete(String node, Set<String> properties) {
                if (!properties.contains("id")) {
                    return false;
                }

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Related Classes of co.paralleluniverse.galaxy.cluster.DistributedBranchHelper

co.paralleluniverse.galaxy.cluster.DistributedTree.Listener

co.paralleluniverse.galaxy.core.AbstractCluster

co.paralleluniverse.galaxy.core.DistributedBranchHelperTest

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