Package org.apache.pig.newplan.logical.expression

Examples of org.apache.pig.newplan.logical.expression.LogicalExpressionVisitor.visit()

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    @Override
    public void visit(LOFilter filter) throws FrontendException {
        currentOp = filter;
        LogicalExpressionVisitor v = getVisitor(filter.getFilterPlan());
        v.visit();
    }
   
    @Override
    public void visit(LOJoin join) throws FrontendException {
        currentOp = join;
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    public void visit(LOJoin join) throws FrontendException {
        currentOp = join;
        Collection<LogicalExpressionPlan> c = join.getExpressionPlanValues();
        for (LogicalExpressionPlan plan : c) {
            LogicalExpressionVisitor v = getVisitor(plan);
            v.visit();
        }
    }
   
    @Override
    public void visit(LOCogroup cg) throws FrontendException {
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        MultiMap<Integer, LogicalExpressionPlan> expressionPlans = cg.getExpressionPlans();
        for( Integer key : expressionPlans.keySet() ) {
            Collection<LogicalExpressionPlan> exprPlans = expressionPlans.get(key);
            for( LogicalExpressionPlan plan : exprPlans ) {
                LogicalExpressionVisitor v = getVisitor(plan);
                v.visit();
            }
        }
    }
   
    @Override
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    public void visit(LOGenerate gen ) throws FrontendException {
        currentOp = gen;
        Collection<LogicalExpressionPlan> plans = gen.getOutputPlans();
        for( LogicalExpressionPlan plan : plans ) {
            LogicalExpressionVisitor v = getVisitor(plan);
            v.visit();
        }
    }
   
    @Override
    public void visit(LOInnerLoad load) throws FrontendException {
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        // so use LOForeach as currentOp
        currentOp = load.getLOForEach();
        LogicalExpressionPlan exp = (LogicalExpressionPlan)load.getProjection().getPlan();
      
        LogicalExpressionVisitor v = getVisitor(exp);
        v.visit();      
    }
   
    @Override
    public void visit(LOSplitOutput splitOutput) throws FrontendException {
        currentOp = splitOutput;
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    @Override
    public void visit(LOSplitOutput splitOutput) throws FrontendException {
        currentOp = splitOutput;
        LogicalExpressionVisitor v = getVisitor(splitOutput.getFilterPlan());
        v.visit();
    }
   
    @Override
    public void visit(LOSort sort) throws FrontendException {
        currentOp = sort;
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    public void visit(LOSort sort) throws FrontendException {
        currentOp = sort;
        Collection<LogicalExpressionPlan> c = sort.getSortColPlans();
        for (LogicalExpressionPlan plan : c) {
            LogicalExpressionVisitor v = getVisitor(plan);
            v.visit();
        }
    }
}
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    abstract protected LogicalExpressionVisitor getVisitor(LogicalExpressionPlan expr) throws FrontendException;
   
    private void visitAll(Collection<LogicalExpressionPlan> lexpPlans) throws FrontendException {
  for (LogicalExpressionPlan plan : lexpPlans) {
      LogicalExpressionVisitor v = getVisitor(plan);
      v.visit();
  }
    }
   
    @Override
    public void visit(LOFilter filter) throws FrontendException {
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    @Override
    public void visit(LOFilter filter) throws FrontendException {
        currentOp = filter;
        LogicalExpressionVisitor v = getVisitor(filter.getFilterPlan());
        v.visit();
    }
   
    @Override
    public void visit(LOLimit limit) throws FrontendException {
        currentOp = limit;
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    @Override
    public void visit(LOLimit limit) throws FrontendException {
        currentOp = limit;
        if (limit.getLimitPlan() != null) {
            LogicalExpressionVisitor v = getVisitor(limit.getLimitPlan());
            v.visit();
        }
    }
    @Override
    public void visit(LOJoin join) throws FrontendException {
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