Examples with QuantifiedPair org.apache.asterix.lang.common.struct.QuantifiedPair used on opensource projects

Example 6 with QuantifiedPair

use of org.apache.asterix.lang.common.struct.QuantifiedPair in project asterixdb by apache.

the class AbstractSqlppExpressionScopingVisitor method visit.

@Override
public Expression visit(QuantifiedExpression qe, ILangExpression arg) throws CompilationException {
    scopeChecker.createNewScope();
    for (QuantifiedPair pair : qe.getQuantifiedList()) {
        pair.setExpr(visit(pair.getExpr(), qe));
        addNewVarSymbolToScope(scopeChecker.getCurrentScope(), pair.getVarExpr().getVar());
    }
    qe.setSatisfiesExpr(visit(qe.getSatisfiesExpr(), qe));
    scopeChecker.removeCurrentScope();
    return qe;
}

Example 7 with QuantifiedPair

use of org.apache.asterix.lang.common.struct.QuantifiedPair in project asterixdb by apache.

the class OperatorExpressionVisitor method processInOperator.

private Expression processInOperator(OperatorExpr operatorExpr, OperatorType opType) throws CompilationException {
    VariableExpr bindingVar = new VariableExpr(context.newVariable());
    Expression itemExpr = operatorExpr.getExprList().get(0);
    Expression collectionExpr = operatorExpr.getExprList().get(1);
    OperatorExpr comparison = new OperatorExpr();
    comparison.addOperand(itemExpr);
    comparison.addOperand(bindingVar);
    comparison.setCurrentop(true);
    if (opType == OperatorType.IN) {
        comparison.addOperator("=");
        return new QuantifiedExpression(Quantifier.SOME, new ArrayList<>(Collections.singletonList(new QuantifiedPair(bindingVar, collectionExpr))), comparison);
    } else {
        comparison.addOperator("!=");
        return new QuantifiedExpression(Quantifier.EVERY, new ArrayList<>(Collections.singletonList(new QuantifiedPair(bindingVar, collectionExpr))), comparison);
    }
}

Example 8 with QuantifiedPair

use of org.apache.asterix.lang.common.struct.QuantifiedPair in project asterixdb by apache.

the class DeepCopyVisitor method visit.

@Override
public QuantifiedExpression visit(QuantifiedExpression qe, Void arg) throws CompilationException {
    List<QuantifiedPair> quantifiedPairs = new ArrayList<>();
    for (QuantifiedPair pair : qe.getQuantifiedList()) {
        Expression expr = (Expression) pair.getExpr().accept(this, arg);
        VariableExpr var = (VariableExpr) pair.getVarExpr().accept(this, arg);
        quantifiedPairs.add(new QuantifiedPair(var, expr));
    }
    Expression condition = (Expression) qe.getSatisfiesExpr().accept(this, arg);
    return new QuantifiedExpression(qe.getQuantifier(), quantifiedPairs, condition);
}