Example usage for org.springframework.statemachine.support.tree Tree getRoot

Introduction

In this page you can find the example usage for org.springframework.statemachine.support.tree Tree getRoot.

Prototype

public Node<T> getRoot() 

Source Link

Usage

From source file:org.springframework.statemachine.config.AbstractStateMachineFactory.java

private Iterator<Node<StateData<S, E>>> buildStateDataIterator(StateMachineModel<S, E> stateMachineModel) {
    Tree<StateData<S, E>> tree = new Tree<StateData<S, E>>();
    treeAdd(tree, stateMachineModel.getStatesData().getStateData());
    return new TreeTraverser<Node<StateData<S, E>>>() {
        @Override//from  w  ww  .  j a  va2s.c  o m
        public Iterable<Node<StateData<S, E>>> children(Node<StateData<S, E>> root) {
            return root.getChildren();
        }
    }.postOrderTraversal(tree.getRoot()).iterator();
}

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From source file:org.springframework.statemachine.recipes.tasks.TasksHandler.java

private static int topLevelTaskCount(List<TaskWrapper> tasks) {
    Tree<TaskWrapper> tree = new Tree<TaskWrapper>();
    for (TaskWrapper wrapper : tasks) {
        tree.add(wrapper, wrapper.id, wrapper.parent);
    }/*w  w w.  j av  a2s .c  o  m*/
    return tree.getRoot().getChildren().size();
}

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From source file:org.springframework.statemachine.recipes.tasks.TasksHandler.java

private static Iterator<Node<TaskWrapper>> buildTasksIterator(List<TaskWrapper> tasks) {
    Tree<TaskWrapper> tree = new Tree<TaskWrapper>();
    for (TaskWrapper wrapper : tasks) {
        tree.add(wrapper, wrapper.id, wrapper.parent);
    }/*from  www . jav a  2s .  co  m*/

    TreeTraverser<Node<TaskWrapper>> traverser = new TreeTraverser<Node<TaskWrapper>>() {
        @Override
        public Iterable<Node<TaskWrapper>> children(Node<TaskWrapper> root) {
            return root.getChildren();
        }
    };

    Iterable<Node<TaskWrapper>> postOrderTraversal = traverser.postOrderTraversal(tree.getRoot());
    Iterator<Node<TaskWrapper>> iterator = postOrderTraversal.iterator();
    return iterator;
}

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