Examples of EqualExpression

expression.logical.EqualExpression
class to represent logical expression Equal @author Hélène Collavizza @date June 2008
org.apache.pig.experimental.logical.expression.EqualExpression
Equality test expression.
org.apache.pig.newplan.logical.expression.EqualExpression
Equality test expression.
org.eclipse.jdt.internal.compiler.ast.EqualExpression

Examples of org.apache.pig.newplan.logical.expression.EqualExpression


    public void visit(LOEqual op) throws VisitorException {     
        ExpressionOperator left = op.getLhsOperand();
        ExpressionOperator right = op.getRhsOperand();
                
        EqualExpression eq = new EqualExpression(exprPlan, exprOpsMap.get(left), exprOpsMap.get(right));
        exprOpsMap.put(op, eq);
    }

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Examples of org.apache.pig.newplan.logical.expression.EqualExpression

        op = (LogicalRelationalOperator)newPlan.getSuccessors(op).get(0);
        assertEquals(op.getClass(), org.apache.pig.newplan.logical.relational.LOFilter.class);
        
        LogicalExpressionPlan exp = ((org.apache.pig.newplan.logical.relational.LOFilter)op).getFilterPlan();
        
        EqualExpression eq = (EqualExpression)exp.getSources().get(0);
        assertEquals(eq.getLhs().getClass(), ProjectExpression.class);
        assertEquals(((ProjectExpression)eq.getLhs()).getColNum(), 0);
        assertEquals(((ProjectExpression)eq.getLhs()).getInputNum(), 0);
        
        assertEquals(eq.getRhs().getClass(), ConstantExpression.class);
        
        // check store
        op = (LogicalRelationalOperator)newPlan.getSuccessors(op).get(0);
        assertEquals(op.getClass(), org.apache.pig.newplan.logical.relational.LOStore.class);
    }

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Examples of org.apache.pig.newplan.logical.expression.EqualExpression

        op = (LogicalRelationalOperator)newPlan.getSuccessors(op).get(0);
        assertEquals(op.getClass(), org.apache.pig.newplan.logical.relational.LOFilter.class);
        
        LogicalExpressionPlan exp = ((org.apache.pig.newplan.logical.relational.LOFilter)op).getFilterPlan();
        
        EqualExpression eq = (EqualExpression)exp.getSources().get(0);
        assertEquals(eq.getLhs().getClass(), CastExpression.class);
                
        assertEquals(eq.getLhs().getClass(), CastExpression.class);
        LogicalExpression ep = (LogicalExpression)exp.getSuccessors(eq.getLhs()).get(0);
        assertEquals(ep.getClass(), ProjectExpression.class);
        assertEquals(((ProjectExpression)ep).getColNum(), 0);
        assertEquals(((ProjectExpression)ep).getInputNum(), 0);
        
        assertEquals(eq.getRhs().getClass(), ConstantExpression.class);
        
        // check store
        op = (LogicalRelationalOperator)newPlan.getSuccessors(op).get(0);
        assertEquals(op.getClass(), org.apache.pig.newplan.logical.relational.LOStore.class);
    }

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Examples of org.apache.pig.newplan.logical.expression.EqualExpression

        assertEquals(op.getClass(), org.apache.pig.newplan.logical.relational.LOFilter.class);        
        LogicalExpressionPlan exp = ((org.apache.pig.newplan.logical.relational.LOFilter)op).getFilterPlan();
        
        AndExpression ae = (AndExpression)exp.getSources().get(0);
        
        EqualExpression eq = (EqualExpression)exp.getSuccessors(ae).get(0);
        assertEquals(eq.getLhs().getClass(), ProjectExpression.class);
        assertEquals(((ProjectExpression)eq.getLhs()).getColNum(), 0);
        assertEquals(((ProjectExpression)eq.getLhs()).getInputNum(), 0);
        
        assertEquals(eq.getRhs().getClass(), ConstantExpression.class);
        
        eq = (EqualExpression)exp.getSuccessors(ae).get(1);
        assertEquals(eq.getLhs().getClass(), ProjectExpression.class);
        assertEquals(((ProjectExpression)eq.getLhs()).getColNum(), 3);
        assertEquals(((ProjectExpression)eq.getLhs()).getInputNum(), 0);
        
        assertEquals(eq.getRhs().getClass(), ConstantExpression.class);
        
        // check store
        op = (LogicalRelationalOperator)newPlan.getSuccessors(op).get(0);
        assertEquals(op.getClass(), org.apache.pig.newplan.logical.relational.LOStore.class); 
    }

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Examples of org.apache.pig.newplan.logical.expression.EqualExpression

    @Test
    public void testExpressionPlanVisitor() throws FrontendException {
        LogicalExpressionPlan ep = new LogicalExpressionPlan();
        ConstantExpression c = new ConstantExpression(ep, new Integer(5), new LogicalFieldSchema(null, null, DataType.INTEGER));
        ProjectExpression p = new ProjectExpression(ep, 0, 0, null);
        EqualExpression e = new EqualExpression(ep, p, c);
        ConstantExpression c2 = new ConstantExpression(ep, new Boolean("true"), new LogicalFieldSchema(null, null, DataType.BOOLEAN));
        new AndExpression(ep, e, c2);
        
        TestExpressionVisitor v = new TestExpressionVisitor(ep);
        v.visit();

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Examples of org.apache.pig.newplan.logical.expression.EqualExpression

    @Test
    public void testExpressionEquality() throws FrontendException {
        LogicalExpressionPlan ep1 = new LogicalExpressionPlan();
        ConstantExpression c1 = new ConstantExpression(ep1, new Integer(5), new LogicalFieldSchema(null, null, DataType.INTEGER));
        ProjectExpression p1 = new ProjectExpression(ep1, 0, 0, null);
        EqualExpression e1 = new EqualExpression(ep1, p1, c1);
        ConstantExpression ca1 = new ConstantExpression(ep1, new Boolean("true"), new LogicalFieldSchema(null, null, DataType.BOOLEAN));
        AndExpression a1 = new AndExpression(ep1, e1, ca1);
        
        LogicalExpressionPlan ep2 = new LogicalExpressionPlan();
        ConstantExpression c2 = new ConstantExpression(ep2, new Integer(5), new LogicalFieldSchema(null, null, DataType.INTEGER));
        ProjectExpression p2 = new ProjectExpression(ep2, 0, 0, null);
        EqualExpression e2 = new EqualExpression(ep2, p2, c2);
        ConstantExpression ca2 = new ConstantExpression(ep2, new Boolean("true"), new LogicalFieldSchema(null, null, DataType.BOOLEAN));
        AndExpression a2 = new AndExpression(ep2, e2, ca2);
        
        assertTrue(ep1.isEqual(ep2));
        assertTrue(c1.isEqual(c2));
        assertTrue(p1.isEqual(p2));
        assertTrue(e1.isEqual(e2));
        assertTrue(ca1.isEqual(ca2));
        assertTrue(a1.isEqual(a2));
        
        LogicalExpressionPlan ep3 = new LogicalExpressionPlan();
        ConstantExpression c3 = new ConstantExpression(ep3, new Integer(3), new LogicalFieldSchema(null, null, DataType.INTEGER));
        ProjectExpression p3 = new ProjectExpression(ep3, 0, 1, null);
        EqualExpression e3 = new EqualExpression(ep3, p3, c3);
        ConstantExpression ca3 = new ConstantExpression(ep3, "true", new LogicalFieldSchema(null, null, DataType.CHARARRAY));
        AndExpression a3 = new AndExpression(ep3, e3, ca3);
        
        assertFalse(ep1.isEqual(ep3));
        assertFalse(c1.isEqual(c3));

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Examples of org.apache.pig.newplan.logical.expression.EqualExpression

            
            // D = filter
            LogicalExpressionPlan filterPlan = new LogicalExpressionPlan();
            ProjectExpression fy = new ProjectExpression(filterPlan, 0, 1, null);
            ConstantExpression fc = new ConstantExpression(filterPlan, new Integer(0), new LogicalFieldSchema(null, null, DataType.INTEGER));
            new EqualExpression(filterPlan, fy, fc);
            LOFilter D = new LOFilter(lp, filterPlan);
            D.neverUseForRealSetSchema(cschema);
            lp.add(D);
            lp.connect(C, D);
        }
        
        // Build a second similar plan to test equality
        // A = load
        LogicalPlan lp1 = new LogicalPlan();
        {
            LogicalSchema aschema = new LogicalSchema();
            aschema.addField(new LogicalSchema.LogicalFieldSchema(
                "x", null, DataType.INTEGER));
            LOLoad A = new LOLoad(new FileSpec("/abc",
                new FuncSpec(DummyLoad.class.getName(), new String[] {"x", "y"})), aschema, lp1, null);
            lp1.add(A);
            
            // B = load
            LogicalSchema bschema = new LogicalSchema();
            bschema.addField(new LogicalSchema.LogicalFieldSchema(
                "y", null, DataType.INTEGER));
            LOLoad B = new LOLoad(new FileSpec("/def",
                new FuncSpec("PigStorage", "\t")), bschema, lp1, null);
            lp1.add(B);
            
            // C = join
            LogicalSchema cschema = new LogicalSchema();
            cschema.addField(new LogicalSchema.LogicalFieldSchema(
                "x", null, DataType.INTEGER));
            cschema.addField(new LogicalSchema.LogicalFieldSchema(
                "y", null, DataType.INTEGER));
            LogicalExpressionPlan aprojplan = new LogicalExpressionPlan();
            new ProjectExpression(aprojplan, 0, 0, null);
            LogicalExpressionPlan bprojplan = new LogicalExpressionPlan();
            new ProjectExpression(bprojplan, 1, 0, null);
            MultiMap<Integer, LogicalExpressionPlan> mm = 
                new MultiMap<Integer, LogicalExpressionPlan>();
            mm.put(0, aprojplan);
            mm.put(1, bprojplan);
            LOJoin C = new LOJoin(lp1, mm, JOINTYPE.HASH, new boolean[] {true, true});
            C.neverUseForRealSetSchema(cschema);
            lp1.add(C);
            lp1.connect(A, C);
            lp1.connect(B, C);
                
            
            // D = filter
            LogicalExpressionPlan filterPlan = new LogicalExpressionPlan();
            ProjectExpression fy = new ProjectExpression(filterPlan, 0, 1, null);
            ConstantExpression fc = new ConstantExpression(filterPlan, new Integer(0), new LogicalFieldSchema(null, null, DataType.INTEGER));
            new EqualExpression(filterPlan, fy, fc);
            LOFilter D = new LOFilter(lp1, filterPlan);
            D.neverUseForRealSetSchema(cschema);
            lp1.add(D);
            lp1.connect(C, D);

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Examples of org.apache.pig.newplan.logical.expression.EqualExpression

            
        LogicalExpressionPlan fp1 = new LogicalExpressionPlan();
        ProjectExpression fy1 = new ProjectExpression(fp1, 0, 1, null);
        ConstantExpression fc1 = new ConstantExpression(fp1,
            new Integer(0), new LogicalFieldSchema(null, null, DataType.INTEGER));
        new EqualExpression(fp1, fy1, fc1);
        LOFilter D1 = new LOFilter(lp, fp1);
        LogicalSchema cschema = new LogicalSchema();
        cschema.addField(new LogicalSchema.LogicalFieldSchema(
            "x", null, DataType.INTEGER));
        cschema.addField(new LogicalSchema.LogicalFieldSchema(
            "y", null, DataType.INTEGER));
        D1.neverUseForRealSetSchema(cschema);
        lp.add(D1);
        
        LogicalExpressionPlan fp2 = new LogicalExpressionPlan();
        ProjectExpression fy2 = new ProjectExpression(fp2, 0, 1, null);
        ConstantExpression fc2 = new ConstantExpression(fp2, 
            new Integer(1), new LogicalFieldSchema(null, null, DataType.INTEGER));
        new EqualExpression(fp2, fy2, fc2);
        LOFilter D2 = new LOFilter(lp, fp2);
        D2.neverUseForRealSetSchema(cschema);
        lp.add(D2);
        
        assertFalse(D1.isEqual(D2));

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Examples of org.apache.pig.newplan.logical.expression.EqualExpression

        
        LogicalExpressionPlan fp1 = new LogicalExpressionPlan();
        ProjectExpression fy1 = new ProjectExpression(fp1, 0, 0, null);
        ConstantExpression fc1 = new ConstantExpression(fp1, 
            new Integer(0), new LogicalFieldSchema(null, null, DataType.INTEGER));
        new EqualExpression(fp1, fy1, fc1);
        LOFilter D1 = new LOFilter(lp1, fp1);
        LogicalSchema cschema = new LogicalSchema();
        cschema.addField(new LogicalSchema.LogicalFieldSchema(
            "x", null, DataType.INTEGER));
        D1.neverUseForRealSetSchema(cschema);
        lp1.add(D1);
        lp1.connect(A1, D1);
        
        LogicalPlan lp2 = new LogicalPlan();
        LOLoad A2 = new LOLoad(new FileSpec("/abc",
            new FuncSpec(DummyLoad.class.getName(), new String[] {"x", "z"})), null, lp2, null);
        lp2.add(A2);
        
        LogicalExpressionPlan fp2 = new LogicalExpressionPlan();
        ProjectExpression fy2 = new ProjectExpression(fp2, 0, 0, null);
        ConstantExpression fc2 = new ConstantExpression(fp2, 
            new Integer(0), new LogicalFieldSchema(null, null, DataType.INTEGER));
        new EqualExpression(fp2, fy2, fc2);
        LOFilter D2 = new LOFilter(lp2, fp2);
        D2.neverUseForRealSetSchema(cschema);
        lp2.add(D2);
        lp2.connect(A2, D2);

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Examples of org.apache.pig.newplan.logical.expression.EqualExpression

    @Test
    public void testBinaryOperatorOrder() throws FrontendException {
        LogicalExpressionPlan ep = new LogicalExpressionPlan();
        ConstantExpression c = new ConstantExpression(ep, new Integer(5), new LogicalFieldSchema(null, null, DataType.INTEGER));
        ProjectExpression p = new ProjectExpression(ep, 0, 0, null);
        EqualExpression e = new EqualExpression(ep, p, c);
        assertEquals(p, e.getLhs());
        assertEquals(c, e.getRhs());
        
    }

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