io.trino.testing.tpch.ExampleSystemTable Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of trino-testing Show documentation

Trino - Testing utilities

There is a newer version: 458

/*
 * 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 io.trino.testing.tpch;

import io.trino.spi.connector.ConnectorSession;
import io.trino.spi.connector.ConnectorTableMetadata;
import io.trino.spi.connector.ConnectorTransactionHandle;
import io.trino.spi.connector.InMemoryRecordSet;
import io.trino.spi.connector.RecordCursor;
import io.trino.spi.connector.RecordSet;
import io.trino.spi.connector.SchemaTableName;
import io.trino.spi.connector.SystemTable;
import io.trino.spi.predicate.TupleDomain;

import static io.trino.metadata.MetadataUtil.TableMetadataBuilder.tableMetadataBuilder;
import static io.trino.spi.connector.SystemTable.Distribution.SINGLE_COORDINATOR;
import static io.trino.spi.type.VarcharType.VARCHAR;

public class ExampleSystemTable
        implements SystemTable
{
    public static final SchemaTableName NAME = new SchemaTableName("sys", "example");

    private static final ConnectorTableMetadata METADATA = tableMetadataBuilder(NAME)
            .column("name", VARCHAR)
            .build();

    private static final RecordSet DATA = InMemoryRecordSet.builder(METADATA)
            .addRow("test")
            .build();

    @Override
    public Distribution getDistribution()
    {
        return SINGLE_COORDINATOR;
    }

    @Override
    public ConnectorTableMetadata getTableMetadata()
    {
        return METADATA;
    }

    @Override
    public RecordCursor cursor(ConnectorTransactionHandle transactionHandle, ConnectorSession session, TupleDomain constraint)
    {
        return DATA.cursor();
    }
}