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Example 21 with Limit

use of io.shardingjdbc.core.parsing.parser.context.limit.Limit 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());
}
Also used : MergedResult(io.shardingjdbc.core.merger.MergedResult) DQLMergeEngine(io.shardingjdbc.core.merger.dql.DQLMergeEngine) Limit(io.shardingjdbc.core.parsing.parser.context.limit.Limit) LimitValue(io.shardingjdbc.core.parsing.parser.context.limit.LimitValue) Test(org.junit.Test)

Example 22 with Limit

use of io.shardingjdbc.core.parsing.parser.context.limit.Limit 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());
}
Also used : MergedResult(io.shardingjdbc.core.merger.MergedResult) DQLMergeEngine(io.shardingjdbc.core.merger.dql.DQLMergeEngine) Limit(io.shardingjdbc.core.parsing.parser.context.limit.Limit) Test(org.junit.Test)

Example 23 with Limit

use of io.shardingjdbc.core.parsing.parser.context.limit.Limit 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());
}
Also used : MergedResult(io.shardingjdbc.core.merger.MergedResult) DQLMergeEngine(io.shardingjdbc.core.merger.dql.DQLMergeEngine) Limit(io.shardingjdbc.core.parsing.parser.context.limit.Limit) LimitValue(io.shardingjdbc.core.parsing.parser.context.limit.LimitValue) Test(org.junit.Test)

Example 24 with Limit

use of io.shardingjdbc.core.parsing.parser.context.limit.Limit 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());
}
Also used : MergedResult(io.shardingjdbc.core.merger.MergedResult) DQLMergeEngine(io.shardingjdbc.core.merger.dql.DQLMergeEngine) Limit(io.shardingjdbc.core.parsing.parser.context.limit.Limit) LimitValue(io.shardingjdbc.core.parsing.parser.context.limit.LimitValue) Test(org.junit.Test)

Example 25 with Limit

use of io.shardingjdbc.core.parsing.parser.context.limit.Limit 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());
}
Also used : MergedResult(io.shardingjdbc.core.merger.MergedResult) DQLMergeEngine(io.shardingjdbc.core.merger.dql.DQLMergeEngine) Limit(io.shardingjdbc.core.parsing.parser.context.limit.Limit) LimitValue(io.shardingjdbc.core.parsing.parser.context.limit.LimitValue) Test(org.junit.Test)

Aggregations

Limit (io.shardingjdbc.core.parsing.parser.context.limit.Limit)46 Test (org.junit.Test)36 MergedResult (io.shardingjdbc.core.merger.MergedResult)27 LimitValue (io.shardingjdbc.core.parsing.parser.context.limit.LimitValue)27 GroupByMemoryMergedResult (io.shardingjdbc.core.merger.dql.groupby.GroupByMemoryMergedResult)15 GroupByStreamMergedResult (io.shardingjdbc.core.merger.dql.groupby.GroupByStreamMergedResult)15 IteratorStreamMergedResult (io.shardingjdbc.core.merger.dql.iterator.IteratorStreamMergedResult)15 OrderByStreamMergedResult (io.shardingjdbc.core.merger.dql.orderby.OrderByStreamMergedResult)15 LimitDecoratorMergedResult (io.shardingjdbc.core.merger.dql.pagination.LimitDecoratorMergedResult)15 RowNumberDecoratorMergedResult (io.shardingjdbc.core.merger.dql.pagination.RowNumberDecoratorMergedResult)15 TopAndRowNumberDecoratorMergedResult (io.shardingjdbc.core.merger.dql.pagination.TopAndRowNumberDecoratorMergedResult)15 RowCountToken (io.shardingjdbc.core.parsing.parser.token.RowCountToken)14 DQLMergeEngine (io.shardingjdbc.core.merger.dql.DQLMergeEngine)12 OrderItem (io.shardingjdbc.core.parsing.parser.context.OrderItem)12 OffsetToken (io.shardingjdbc.core.parsing.parser.token.OffsetToken)12 TableToken (io.shardingjdbc.core.parsing.parser.token.TableToken)9 SQLParsingException (io.shardingjdbc.core.parsing.parser.exception.SQLParsingException)5 AggregationSelectItem (io.shardingjdbc.core.parsing.parser.context.selectitem.AggregationSelectItem)3 SQLExpression (io.shardingjdbc.core.parsing.parser.expression.SQLExpression)3 SQLNumberExpression (io.shardingjdbc.core.parsing.parser.expression.SQLNumberExpression)3