?? dataexchange.java
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/*
* Copyright 2004 Clinton Begin
*
* 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.ibatis.sqlmap.engine.exchange;
import com.ibatis.sqlmap.engine.cache.CacheKey;
import com.ibatis.sqlmap.engine.mapping.parameter.ParameterMap;
import com.ibatis.sqlmap.engine.mapping.result.ResultMap;
import com.ibatis.sqlmap.engine.scope.RequestScope;
import java.util.Map;
/**
* Interface for exchanging data between a parameter map/result map and the related objects
*/
public interface DataExchange {
/**
* Initializes the data exchange instance.
*
* @param properties
*/
public void initialize(Map properties);
/**
* Gets a data array from a parameter object.
*
* @param request - the scope of the request
* @param parameterMap - the parameter map
* @param parameterObject - the parameter object
*
* @return - the objects
*/
public Object[] getData(RequestScope request, ParameterMap parameterMap, Object parameterObject);
/**
* Sets values from a data array into a result object.
*
* @param request - the request scope
* @param resultMap - the result map
* @param resultObject - the result object
* @param values - the values to be mapped
*
* @return the resultObject
*/
public Object setData(RequestScope request, ResultMap resultMap, Object resultObject, Object[] values);
/**
* Sets values from a data array into a parameter object
*
* @param request - the request scope
* @param parameterMap - the parameter map
* @param parameterObject - the parameter object
* @param values - the values to set
*
* @return parameterObject
*/
public Object setData(RequestScope request, ParameterMap parameterMap, Object parameterObject, Object[] values);
/**
* Returns an object capable of being a unique cache key for a parameter object.
*
* @param request - the request scope
* @param parameterMap - the parameter map
* @param parameterObject - the parameter object
*
* @return - a cache key
*/
public CacheKey getCacheKey(RequestScope request, ParameterMap parameterMap, Object parameterObject);
}
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