Examples of org.apache.vxquery.compiler.rewriter.rules.RemoveRedundantTreatExpressionsRule

Package org.apache.vxquery.compiler.rewriter.rules

Examples of org.apache.vxquery.compiler.rewriter.rules.RemoveRedundantTreatExpressionsRule

org.apache.vxquery.compiler.rewriter.rules.RemoveRedundantTreatExpressionsRule

The rule searches for where the xquery treat function is used. When the expression's return type matches the treat expression type, the treat is removed.

 Before plan__parent %OPERATOR( $v1 : treat( \@input_expression, \@type_expression ) ) plan__child Where treat \@type_expression is the same as the return type of \@input_expression. After  plan__parent %OPERATOR( $v1 : \@input_expression ) plan__child

@author prestonc

     * Remove expressions known to be redundant.
     */
    public final static List<IAlgebraicRewriteRule> buildRedundantExpressionNormalizationRuleCollection() {
        List<IAlgebraicRewriteRule> normalization = new LinkedList<IAlgebraicRewriteRule>();
        normalization.add(new InlineNestedVariablesRule());
        normalization.add(new RemoveRedundantTreatExpressionsRule());
        normalization.add(new RemoveRedundantDataExpressionsRule());
        normalization.add(new RemoveRedundantPromoteExpressionsRule());
        normalization.add(new RemoveRedundantCastExpressionsRule());
        normalization.add(new ConvertToAlgebricksExpressionsRule());
        normalization.add(new RemoveRedundantBooleanExpressionsRule());

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     * Remove expressions known to be redundant.
     */
    public final static List<IAlgebraicRewriteRule> buildRedundantExpressionNormalizationRuleCollection() {
        List<IAlgebraicRewriteRule> normalization = new LinkedList<IAlgebraicRewriteRule>();
        normalization.add(new InlineNestedVariablesRule());
        normalization.add(new RemoveRedundantTreatExpressionsRule());
        normalization.add(new RemoveRedundantDataExpressionsRule());
        normalization.add(new RemoveRedundantPromoteExpressionsRule());
        normalization.add(new RemoveRedundantCastExpressionsRule());
        normalization.add(new ConvertToAlgebricksExpressionsRule());
        normalization.add(new RemoveRedundantBooleanExpressionsRule());

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Related Classes of org.apache.vxquery.compiler.rewriter.rules.RemoveRedundantTreatExpressionsRule

org.apache.vxquery.compiler.rewriter.RewriteRuleset

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