| // Copyright (C) 2009 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package com.google.gerrit.server.query; |
| |
| /** |
| * Predicate only for use in rewrite rule patterns. |
| * <p> |
| * May <b>only</b> be used when nested immediately within a |
| * {@link VariablePredicate}. Within the QueryRewriter this predicate matches |
| * any other operator whose name matches this predicate's operator name. |
| * |
| * @see QueryRewriter |
| */ |
| public final class WildPatternPredicate<T> extends OperatorPredicate<T> { |
| public WildPatternPredicate(final String name) { |
| super(name, "*"); |
| } |
| |
| @Override |
| public boolean match(final T object) { |
| throw new UnsupportedOperationException("Cannot match " + toString()); |
| } |
| |
| @Override |
| public int getCost() { |
| return 0; |
| } |
| |
| @Override |
| public int hashCode() { |
| return getOperator().hashCode() * 31; |
| } |
| |
| @Override |
| public boolean equals(final Object other) { |
| if (other == null) |
| return false; |
| if (getClass() == other.getClass()) { |
| final WildPatternPredicate<?> p = (WildPatternPredicate<?>) other; |
| return getOperator().equals(p.getOperator()); |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| return getOperator() + ":" + getValue(); |
| } |
| } |