Examples with ValueBoundarySpec com.sap.hadoop.windowing.query2.specification.WindowFrameSpec.ValueBoundarySpec used on opensource projects

Example 1 with ValueBoundarySpec

use of com.sap.hadoop.windowing.query2.specification.WindowFrameSpec.ValueBoundarySpec in project SQLWindowing by hbutani.

the class WindowSpecTranslation method translateBoundary.

static BoundaryDef translateBoundary(QueryDef qDef, BoundarySpec bndSpec, InputInfo iInfo) throws WindowingException {
    if (bndSpec instanceof ValueBoundarySpec) {
        ValueBoundarySpec vBndSpec = (ValueBoundarySpec) bndSpec;
        ValueBoundaryDef vbDef = new ValueBoundaryDef(vBndSpec);
        TranslateUtils.validateNoLeadLagInValueBoundarySpec(vBndSpec.getExpression());
        ExprNodeDesc exprNode = TranslateUtils.buildExprNode(vBndSpec.getExpression(), iInfo.getTypeCheckCtx());
        vbDef.setExprNode(exprNode);
        ExprNodeEvaluator exprEval = WindowingExprNodeEvaluatorFactory.get(qDef.getTranslationInfo(), exprNode);
        ObjectInspector OI = TranslateUtils.initExprNodeEvaluator(qDef, exprNode, exprEval, iInfo);
        TranslateUtils.validateValueBoundaryExprType(OI);
        vbDef.setExprEvaluator(exprEval);
        vbDef.setOI(OI);
        return vbDef;
    } else if (bndSpec instanceof RangeBoundarySpec) {
        RangeBoundarySpec rBndSpec = (RangeBoundarySpec) bndSpec;
        RangeBoundaryDef rbDef = new RangeBoundaryDef(rBndSpec);
        return rbDef;
    } else if (bndSpec instanceof CurrentRowSpec) {
        CurrentRowSpec cBndSpec = (CurrentRowSpec) bndSpec;
        CurrentRowDef cbDef = new CurrentRowDef(cBndSpec);
        return cbDef;
    }
    throw new WindowingException("Unknown Boundary: " + bndSpec);
}

Example 2 with ValueBoundarySpec

use of com.sap.hadoop.windowing.query2.specification.WindowFrameSpec.ValueBoundarySpec in project SQLWindowing by hbutani.

the class QSpecBuilder2 method valuesboundary.

// $ANTLR end window_value_expression
// $ANTLR start valuesboundary
// QSpecBuilder2.g:203:1: valuesboundary returns [BoundarySpec bs] : ( ^( PRECEDING UNBOUNDED ) | ^( FOLLOWING UNBOUNDED ) | CURRENT | ^( LESS e= expression n= Number ) | ^( MORE e= expression n= Number ) );
public final BoundarySpec valuesboundary() throws RecognitionException {
    BoundarySpec bs = null;
    CommonTree n = null;
    CommonTree e = null;
    try {
        // QSpecBuilder2.g:203:42: ( ^( PRECEDING UNBOUNDED ) | ^( FOLLOWING UNBOUNDED ) | CURRENT | ^( LESS e= expression n= Number ) | ^( MORE e= expression n= Number ) )
        int alt38 = 5;
        switch(input.LA(1)) {
            case PRECEDING:
                {
                    alt38 = 1;
                }
                break;
            case FOLLOWING:
                {
                    alt38 = 2;
                }
                break;
            case CURRENT:
                {
                    alt38 = 3;
                }
                break;
            case LESS:
                {
                    alt38 = 4;
                }
                break;
            case MORE:
                {
                    alt38 = 5;
                }
                break;
            default:
                if (backtracking > 0) {
                    failed = true;
                    return bs;
                }
                NoViableAltException nvae = new NoViableAltException("203:1: valuesboundary returns [BoundarySpec bs] : ( ^( PRECEDING UNBOUNDED ) | ^( FOLLOWING UNBOUNDED ) | CURRENT | ^( LESS e= expression n= Number ) | ^( MORE e= expression n= Number ) );", 38, 0, input);
                throw nvae;
        }
        switch(alt38) {
            case 1:
                // QSpecBuilder2.g:204:3: ^( PRECEDING UNBOUNDED )
                {
                    match(input, PRECEDING, FOLLOW_PRECEDING_in_valuesboundary966);
                    if (failed)
                        return bs;
                    match(input, Token.DOWN, null);
                    if (failed)
                        return bs;
                    match(input, UNBOUNDED, FOLLOW_UNBOUNDED_in_valuesboundary968);
                    if (failed)
                        return bs;
                    match(input, Token.UP, null);
                    if (failed)
                        return bs;
                    if (backtracking == 0) {
                        bs = new ValueBoundarySpec(Direction.PRECEDING, null, BoundarySpec.UNBOUNDED_AMOUNT);
                    }
                }
                break;
            case 2:
                // QSpecBuilder2.g:205:3: ^( FOLLOWING UNBOUNDED )
                {
                    match(input, FOLLOWING, FOLLOW_FOLLOWING_in_valuesboundary979);
                    if (failed)
                        return bs;
                    match(input, Token.DOWN, null);
                    if (failed)
                        return bs;
                    match(input, UNBOUNDED, FOLLOW_UNBOUNDED_in_valuesboundary981);
                    if (failed)
                        return bs;
                    match(input, Token.UP, null);
                    if (failed)
                        return bs;
                    if (backtracking == 0) {
                        bs = new ValueBoundarySpec(Direction.FOLLOWING, null, BoundarySpec.UNBOUNDED_AMOUNT);
                    }
                }
                break;
            case 3:
                // QSpecBuilder2.g:206:3: CURRENT
                {
                    match(input, CURRENT, FOLLOW_CURRENT_in_valuesboundary990);
                    if (failed)
                        return bs;
                    if (backtracking == 0) {
                        bs = new CurrentRowSpec();
                    }
                }
                break;
            case 4:
                // QSpecBuilder2.g:207:3: ^( LESS e= expression n= Number )
                {
                    match(input, LESS, FOLLOW_LESS_in_valuesboundary999);
                    if (failed)
                        return bs;
                    match(input, Token.DOWN, null);
                    if (failed)
                        return bs;
                    pushFollow(FOLLOW_expression_in_valuesboundary1003);
                    e = expression();
                    _fsp--;
                    if (failed)
                        return bs;
                    n = (CommonTree) input.LT(1);
                    match(input, Number, FOLLOW_Number_in_valuesboundary1007);
                    if (failed)
                        return bs;
                    match(input, Token.UP, null);
                    if (failed)
                        return bs;
                    if (backtracking == 0) {
                        bs = new ValueBoundarySpec(Direction.PRECEDING, e, Integer.parseInt(n.getText()));
                    }
                }
                break;
            case 5:
                // QSpecBuilder2.g:208:3: ^( MORE e= expression n= Number )
                {
                    match(input, MORE, FOLLOW_MORE_in_valuesboundary1017);
                    if (failed)
                        return bs;
                    match(input, Token.DOWN, null);
                    if (failed)
                        return bs;
                    pushFollow(FOLLOW_expression_in_valuesboundary1021);
                    e = expression();
                    _fsp--;
                    if (failed)
                        return bs;
                    n = (CommonTree) input.LT(1);
                    match(input, Number, FOLLOW_Number_in_valuesboundary1025);
                    if (failed)
                        return bs;
                    match(input, Token.UP, null);
                    if (failed)
                        return bs;
                    if (backtracking == 0) {
                        bs = new ValueBoundarySpec(Direction.PRECEDING, e, Integer.parseInt(n.getText()));
                    }
                }
                break;
        }
    } catch (RecognitionException re) {
        reportError(re);
        recover(input, re);
    } finally {
    }
    return bs;
}