Examples with DQLMergeEngine io.shardingjdbc.core.merger.dql.DQLMergeEngine used on opensource projects

Example 6 with DQLMergeEngine

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

the class LimitDecoratorMergedResultTest method assertNextWithoutRowCount.

@Test
public void assertNextWithoutRowCount() throws SQLException {
    Limit limit = new Limit(DatabaseType.MySQL);
    limit.setOffset(new LimitValue(2, -1, true));
    selectStatement.setLimit(limit);
    mergeEngine = new DQLMergeEngine(queryResults, selectStatement);
    MergedResult actual = mergeEngine.merge();
    for (int i = 0; i < 6; i++) {
        assertTrue(actual.next());
    }
    assertFalse(actual.next());
}

Example 7 with DQLMergeEngine

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

the class RowNumberDecoratorMergedResultTest method assertNextWithoutOffsetWithoutRowCount.

@Test
public void assertNextWithoutOffsetWithoutRowCount() throws SQLException {
    Limit limit = new Limit(DatabaseType.Oracle);
    selectStatement.setLimit(limit);
    mergeEngine = new DQLMergeEngine(queryResults, selectStatement);
    MergedResult actual = mergeEngine.merge();
    for (int i = 0; i < 8; i++) {
        assertTrue(actual.next());
    }
    assertFalse(actual.next());
}

Example 8 with DQLMergeEngine

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

the class RowNumberDecoratorMergedResultTest method assertNextForRowCountBoundOpenedTrue.

@Test
public void assertNextForRowCountBoundOpenedTrue() throws SQLException {
    Limit limit = new Limit(DatabaseType.Oracle);
    limit.setOffset(new LimitValue(2, -1, true));
    limit.setRowCount(new LimitValue(4, -1, true));
    selectStatement.setLimit(limit);
    mergeEngine = new DQLMergeEngine(queryResults, selectStatement);
    MergedResult actual = mergeEngine.merge();
    assertTrue(actual.next());
    assertTrue(actual.next());
    assertTrue(actual.next());
    assertFalse(actual.next());
}

Example 9 with DQLMergeEngine

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

the class TopAndRowNumberDecoratorMergedResultTest method assertNextWithOffsetBoundOpenedTrue.

@Test
public void assertNextWithOffsetBoundOpenedTrue() throws SQLException {
    Limit limit = new Limit(DatabaseType.SQLServer);
    limit.setOffset(new LimitValue(2, -1, true));
    limit.setRowCount(new LimitValue(4, -1, false));
    selectStatement.setLimit(limit);
    mergeEngine = new DQLMergeEngine(queryResults, selectStatement);
    MergedResult actual = mergeEngine.merge();
    assertTrue(actual.next());
    assertTrue(actual.next());
    assertTrue(actual.next());
    assertFalse(actual.next());
}

Example 10 with DQLMergeEngine

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

the class TopAndRowNumberDecoratorMergedResultTest method assertNextWithoutOffsetWithRowCount.

@Test
public void assertNextWithoutOffsetWithRowCount() throws SQLException {
    Limit limit = new Limit(DatabaseType.SQLServer);
    limit.setRowCount(new LimitValue(5, -1, false));
    selectStatement.setLimit(limit);
    mergeEngine = new DQLMergeEngine(queryResults, selectStatement);
    MergedResult actual = mergeEngine.merge();
    for (int i = 0; i < 5; i++) {
        assertTrue(actual.next());
    }
    assertFalse(actual.next());
}