Examples with IAlgebraicRewriteRule org.apache.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule used on opensource projects

Example 31 with IAlgebraicRewriteRule

use of org.apache.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule in project asterixdb by apache.

the class PrioritizedRuleController method rewriteWithRuleCollection.

@Override
public boolean rewriteWithRuleCollection(Mutable<ILogicalOperator> root, Collection<IAlgebraicRewriteRule> rules) throws AlgebricksException {
    boolean anyRuleFired = false;
    boolean anyChange = false;
    do {
        anyChange = false;
        for (IAlgebraicRewriteRule r : rules) {
            while (true) {
                boolean ruleFired = rewriteOperatorRef(root, r);
                if (ruleFired) {
                    anyChange = true;
                    anyRuleFired = true;
                } else {
                    // go to next rule
                    break;
                }
            }
        }
    } while (anyChange);
    return anyRuleFired;
}