/*
 * Copyright 2016-2018 shardingsphere.io.
 * <p>
 * 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.
 * </p>
 */

package io.shardingsphere.core.keygen;

/**
 * Key generator interface.
 *
 * @author zhangliang
 */
public interface KeyGenerator {
    
    /**
     * Generate key.
     * 
     * @return generated key
     */
    Number generateKey();
}

@@ -710,16 +710,35 @@
 ngliang%0A
+ * @author panjuan%0A
  */%0Apubl
@@ -852,14 +852,21 @@
     
-Number
+Comparable%3C?%3E
  gen

use Comparable<?>