Examples of DepthFirstWalker

org.apache.pig.experimental.plan.DepthFirstWalker
Do a depth first traversal of the graph.
org.apache.pig.impl.plan.DepthFirstWalker
DepthFirstWalker traverses a plan in a depth first manner. One important note is that, in compliance with the PlanWalker contract, it only visits each node in the graph once.
org.apache.pig.newplan.DepthFirstWalker
Do a depth first traversal of the graph.

Examples of org.apache.pig.experimental.plan.DepthFirstWalker

        
        plan.connect(fred, joe);
        plan.connect(joe, bob);
        
        SillyVisitor v =
            new SillyVisitor(plan, new DepthFirstWalker(plan));
        
        v.visit();
        
        String s = v.getVisitPattern();

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Examples of org.apache.pig.experimental.plan.DepthFirstWalker

        plan.connect(fred, joe);
        plan.connect(joe, jill);
        plan.connect(joe, jane);
        
        SillyVisitor v =
            new SillyVisitor(plan, new DepthFirstWalker(plan));
        
        v.visit();
        
        String s = v.getVisitPattern();

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Examples of org.apache.pig.experimental.plan.DepthFirstWalker

        plan.connect(joe, bob);
        plan.connect(bob, jill);
        plan.connect(bob, jane);
        
        SillyVisitor v =
            new SillyVisitor(plan, new DepthFirstWalker(plan));
        
        v.visit();
        
        String s = v.getVisitPattern();

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Examples of org.apache.pig.experimental.plan.DepthFirstWalker

    private static class TestLogicalVisitor extends LogicalPlanVisitor {
        
        StringBuffer bf = new StringBuffer();


        protected TestLogicalVisitor(OperatorPlan plan) {
            super(plan, new DepthFirstWalker(plan));
        }

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Examples of org.apache.pig.experimental.plan.DepthFirstWalker

    private static class TestExpressionVisitor extends LogicalExpressionVisitor {
        
        StringBuffer bf = new StringBuffer();


        protected TestExpressionVisitor(OperatorPlan plan) {
            super(plan, new DepthFirstWalker(plan));
        }

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Examples of org.apache.pig.experimental.plan.DepthFirstWalker

    
    private static class SillySameVisitor extends AllSameVisitor {
        StringBuffer buf = new StringBuffer();


        SillySameVisitor(OperatorPlan plan) {
            super(plan, new DepthFirstWalker(plan));
        }

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Examples of org.apache.pig.experimental.plan.DepthFirstWalker

    
    private static class SillyExpressionVisitor extends LogicalExpressionVisitor {
        StringBuffer buf;


        protected SillyExpressionVisitor(OperatorPlan p, StringBuffer b) {
            super(p, new DepthFirstWalker(p));
            buf = b;
        }

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Examples of org.apache.pig.experimental.plan.DepthFirstWalker

    
    private static class SillyAllExpressionVisitor extends AllExpressionVisitor {
        StringBuffer buf = new StringBuffer();


        public SillyAllExpressionVisitor(OperatorPlan plan) {
            super(plan, new DepthFirstWalker(plan));
        }

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Examples of org.apache.pig.experimental.plan.DepthFirstWalker

    private static class ProjectionRewriter extends LogicalExpressionVisitor {


        private LogicalRelationalOperator currentOp;
        
        ProjectionRewriter(OperatorPlan p, LogicalRelationalOperator cop) {
            super(p, new DepthFirstWalker(p));
            currentOp = cop;
        }

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Examples of org.apache.pig.experimental.plan.DepthFirstWalker

        super(plan, new DependencyOrderWalker(plan));
    }
    
    class ExprUidStamper extends LogicalExpressionVisitor {
        protected ExprUidStamper(OperatorPlan plan) {
            super(plan, new DepthFirstWalker(plan));
        }

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