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 /*
  *      Copyright (C) 2012-2015 DataStax Inc.
  *
  *   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.datastax.driver.mapping.annotations;
Specifies that the field decorated with this annotation maps to a CQL type that is frozen, or contains frozen subtypes.

This annotation is purely informational at this stage, but will become useful when a schema generation feature is added to the mapper.

public @interface Frozen {

    
Contains the full CQL type of the target column. As a convenience, this can be left out when only the top-level type is frozen.

Examples:

 // Will map to frozen<user>
 @Frozen
 private User user;

 @Frozen("map<text, map<text, frozen<user>>>")
 private Map<String, Map<String, User>> m;
 

Also consider the @FrozenKey and @FrozenValue shortcuts for simple collections.

Returns:
the full CQL type of the target column.
    String value() default "";
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