Examples with MergedResult io.shardingjdbc.core.merger.MergedResult used on opensource projects

Example 21 with MergedResult

use of io.shardingjdbc.core.merger.MergedResult in project sharding-jdbc by shardingjdbc.

the class TopAndRowNumberDecoratorMergedResultTest method assertNextForSkipAll.

@Test
public void assertNextForSkipAll() throws SQLException {
    Limit limit = new Limit(DatabaseType.SQLServer);
    limit.setOffset(new LimitValue(Integer.MAX_VALUE, -1, true));
    selectStatement.setLimit(limit);
    mergeEngine = new DQLMergeEngine(queryResults, selectStatement);
    MergedResult actual = mergeEngine.merge();
    assertFalse(actual.next());
}

Example 22 with MergedResult

use of io.shardingjdbc.core.merger.MergedResult in project sharding-jdbc by shardingjdbc.

the class DQLMergeEngineTest method assertBuildIteratorStreamMergedResultWithSQLServerLimit.

@Test
public void assertBuildIteratorStreamMergedResultWithSQLServerLimit() throws SQLException {
    selectStatement.setLimit(new Limit(DatabaseType.SQLServer));
    mergeEngine = new DQLMergeEngine(queryResults, selectStatement);
    MergedResult actual = mergeEngine.merge();
    assertThat(actual, instanceOf(TopAndRowNumberDecoratorMergedResult.class));
    assertThat(((TopAndRowNumberDecoratorMergedResult) actual).getMergedResult(), instanceOf(IteratorStreamMergedResult.class));
}

Example 23 with MergedResult

use of io.shardingjdbc.core.merger.MergedResult in project sharding-jdbc by shardingjdbc.

the class DQLMergeEngineTest method assertBuildIteratorStreamMergedResultWithMySQLLimit.

@Test
public void assertBuildIteratorStreamMergedResultWithMySQLLimit() throws SQLException {
    selectStatement.setLimit(new Limit(DatabaseType.MySQL));
    mergeEngine = new DQLMergeEngine(queryResults, selectStatement);
    MergedResult actual = mergeEngine.merge();
    assertThat(actual, instanceOf(LimitDecoratorMergedResult.class));
    assertThat(((LimitDecoratorMergedResult) actual).getMergedResult(), instanceOf(IteratorStreamMergedResult.class));
}

Example 24 with MergedResult

use of io.shardingjdbc.core.merger.MergedResult in project sharding-jdbc by shardingjdbc.

the class DQLMergeEngineTest method assertBuildIteratorStreamMergedResultWithOracleLimit.

@Test
public void assertBuildIteratorStreamMergedResultWithOracleLimit() throws SQLException {
    selectStatement.setLimit(new Limit(DatabaseType.Oracle));
    mergeEngine = new DQLMergeEngine(queryResults, selectStatement);
    MergedResult actual = mergeEngine.merge();
    assertThat(actual, instanceOf(RowNumberDecoratorMergedResult.class));
    assertThat(((RowNumberDecoratorMergedResult) actual).getMergedResult(), instanceOf(IteratorStreamMergedResult.class));
}

Example 25 with MergedResult

use of io.shardingjdbc.core.merger.MergedResult in project sharding-jdbc by shardingjdbc.

the class DQLMergeEngineTest method assertBuildGroupByMemoryMergedResultWithSQLServerLimit.

@Test
public void assertBuildGroupByMemoryMergedResultWithSQLServerLimit() throws SQLException {
    selectStatement.setLimit(new Limit(DatabaseType.SQLServer));
    selectStatement.getGroupByItems().add(new OrderItem(1, OrderDirection.DESC, OrderDirection.ASC));
    selectStatement.getGroupByItems().add(new OrderItem(1, OrderDirection.ASC, OrderDirection.ASC));
    mergeEngine = new DQLMergeEngine(queryResults, selectStatement);
    MergedResult actual = mergeEngine.merge();
    assertThat(actual, instanceOf(TopAndRowNumberDecoratorMergedResult.class));
    assertThat(((TopAndRowNumberDecoratorMergedResult) actual).getMergedResult(), instanceOf(GroupByMemoryMergedResult.class));
}