/**
* @description TODO
* @createTime 2016-4-19 上午11:20:47
* @fileName CacheInterceptor.java
* @author yaojiamin
*/
private BoundSql createPageBoundSql(CacheHandlerBean cacheHandlerBean, BoundSql boundSql) {
return new BoundSql(
cacheHandlerBean.getMappedStatement().getConfiguration(),
createCountSql(boundSql),
boundSql.getParameterMappings(),
cacheHandlerBean.getParameterObject());
}
/**
* @description TODO
* @createTime 2016-4-27 下午12:33:11
* @fileName CacheInterceptor.java
* @author yaojiamin
*/
private <E> List<E> executeQuery(
CacheHandlerBean cacheHandlerBean, BoundSql boundSql, CacheKey cacheKey, Executor executor)
throws SQLException {
return executor.query(
cacheHandlerBean.getMappedStatement(),
cacheHandlerBean.getParameterObject(),
cacheHandlerBean.getRowBounds(),
cacheHandlerBean.getResultHandler(),
cacheKey,
boundSql);
}
/**
* @description TODO
* @createTime 2016-5-31 下午4:53:32
* @fileName CacheInterceptor.java
* @author yaojiamin
* @param boundSql
* @param cacheKey
*/
@SuppressWarnings({})
public <E> List<E> query(Executor executor, CacheHandlerBean cacheHandlerBean) throws Exception {
BoundSql boundSql =
cacheHandlerBean.getMappedStatement().getBoundSql(cacheHandlerBean.getParameterObject());
CacheKey cacheKey =
executor.createCacheKey(
cacheHandlerBean.getMappedStatement(),
cacheHandlerBean.getParameterObject(),
cacheHandlerBean.getRowBounds(),
boundSql);
MetaObject metaPage = forObject(cacheHandlerBean.getParameterObject());
// 当需要分页查询时，将page参数里的当前页和每页数加到cachekey里
if (isNeedPagination(metaPage)) {
executeQuery(
cacheHandlerBean,
createPageBoundSql(cacheHandlerBean, boundSql),
cloneCacheKey(cacheKey),
executor);
Assert.isTrue(metaPage.getValue(Constants.TOTAL) != null, "Fail to count result!!!");
cacheKey.update(metaPage.getValue(Constants.PAGE_NO));
cacheKey.update(metaPage.getValue(Constants.PAGE_SIZE));
}
return executeQuery(cacheHandlerBean, boundSql, cacheKey, executor);
}
