Examples of org.apache.pig.backend.hadoop.executionengine.physicalLayer.plans.PatternPlan.match()

org.apache.pig.backend.hadoop.executionengine.physicalLayer.plans.PatternPlan.match()
Return true if the given plan has nodes that match the pattern represented by this class If a match is found, the PatterNodes in the plan will return non null node for getMatch(). @param inpPlan - input plan to match @return true if match is found

        // match fails because fe pattern node is set to be source
        assertFalse("plan matched", ptPlan.match(pplan));
        ptFENode.setSourceNode(false);
        
        // verify that match is true
        assertTrue("plan matched", ptPlan.match(pplan));
        assertEquals("filter pt node match", ptFilNode.getMatch(), fil);
        assertEquals("foreach pt node match", ptFENode.getMatch(), fe);
        
        //create new plan (fil -> fe)
        PhysicalPlan pplan2 = new PhysicalPlan();

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        POForEach fe21 = new POForEach(getNewOpKey()); 
        pplan.add(fe21);
        pplan.connect(fil2, fe21);


        //verify that plan does not match
        assertFalse("plan not matched", ptPlan.match(pplan2));
        assertEquals("null match", ptFilNode.getMatch(), null);
        assertEquals("null match", ptFENode.getMatch(), null);     
        
    }

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        //create plan fil -> fil -> fe -> store
        PhysicalPlan pplan = new PhysicalPlan();
        POFilter fil = new POFilter(getNewOpKey()); 
        pplan.add(fil);
        assertFalse("plan not matched", ptPlan.match(pplan));
        assertEquals("null match", ptFilNode.getMatch(), null);
        assertEquals("null match", ptFENode.getMatch(), null);
        assertEquals("null match", ptStNode.getMatch(), null);
        
        POForEach fe = new POForEach(getNewOpKey());

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        assertEquals("null match", ptStNode.getMatch(), null);
        
        POForEach fe = new POForEach(getNewOpKey()); 
        pplan.add(fe);
        pplan.connect(fil, fe);
        assertFalse("plan not matched", ptPlan.match(pplan));
        
        POFilter fil2 = new POFilter(getNewOpKey()); 
        pplan.add(fil2);
        pplan.connect(fil2, fil);
        assertFalse("plan not matched", ptPlan.match(pplan));

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        assertFalse("plan not matched", ptPlan.match(pplan));
        
        POFilter fil2 = new POFilter(getNewOpKey()); 
        pplan.add(fil2);
        pplan.connect(fil2, fil);
        assertFalse("plan not matched", ptPlan.match(pplan));
        
        POStore store = new POStore(getNewOpKey()); 
        pplan.add(store);
        pplan.connect(fe, store);
        assertTrue("plan matched", ptPlan.match(pplan));

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        assertFalse("plan not matched", ptPlan.match(pplan));
        
        POStore store = new POStore(getNewOpKey()); 
        pplan.add(store);
        pplan.connect(fe, store);
        assertTrue("plan matched", ptPlan.match(pplan));
        
        assertEquals("test match node", ptFilNode.getMatch(), fil);
        assertEquals("test match node", ptFENode.getMatch(), fe);
        assertEquals("test match node", ptStNode.getMatch(), store);

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        //create plan 
        PhysicalPlan pplan = new PhysicalPlan();
        POFilter fil = new POFilter(getNewOpKey()); 
        pplan.add(fil);
        assertFalse("plan not matched", ptPlan.match(pplan));
        
        POForEach fe = new POForEach(getNewOpKey()); 
        pplan.add(fe);
        assertFalse("plan not matched", ptPlan.match(pplan));

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        pplan.add(fil);
        assertFalse("plan not matched", ptPlan.match(pplan));
        
        POForEach fe = new POForEach(getNewOpKey()); 
        pplan.add(fe);
        assertFalse("plan not matched", ptPlan.match(pplan));
        
        POFRJoin join = new POFRJoin(getNewOpKey(), 0, null,
                new ArrayList<List<PhysicalPlan>>(), null, null, 0, false,null); 
        pplan.add(join);
        pplan.connect(fil, join);

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        POFRJoin join = new POFRJoin(getNewOpKey(), 0, null,
                new ArrayList<List<PhysicalPlan>>(), null, null, 0, false,null); 
        pplan.add(join);
        pplan.connect(fil, join);
        pplan.connect(fe, join);
        assertTrue("plan matched", ptPlan.match(pplan));
        assertEquals("test match node", ptFilNode.getMatch(), fil);
        assertEquals("test match node", ptFENode.getMatch(), fe);
        assertEquals("test match node", ptJoinNode.getMatch(), join);
        
    }

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