com.google.gerrit.server.query

Interface QueryRewriter.RewriteRule<T>

All Superinterfaces:

java.lang.Comparable<QueryRewriter.RewriteRule<T>>

Enclosing class:

QueryRewriter<T>

protected static interface QueryRewriter.RewriteRule<T>
extends java.lang.Comparable<QueryRewriter.RewriteRule<T>>

Applies a rewrite rule to a Predicate.

Method Summary

Modifier and Type	Method and Description
Predicate<T>	rewrite(QueryRewriter<T> rewriter, Predicate<T> input) Apply a rewrite rule to the Predicate.
boolean	useBestCost()

Methods inherited from interface java.lang.Comparable

compareTo

Method Detail

rewrite

Predicate<T> rewrite(QueryRewriter<T> rewriter,
                     Predicate<T> input)

Apply a rewrite rule to the Predicate.

Parameters:

input - the input predicate to be tested, and possibly rewritten.

Returns:

a rewritten form of the predicate if this rule matches with the tree input and has a rewrite for it; null if this rule does not want this predicate.

useBestCost

boolean useBestCost()

Returns:

true if the best cost should be selected.