io.trino.metadata.TableMetadata Maven / Gradle / Ivy

Go to download

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

Trino - Engine

There is a newer version: 465

/*
 * 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.metadata;

import io.trino.spi.catalog.CatalogName;
import io.trino.spi.connector.ColumnMetadata;
import io.trino.spi.connector.ConnectorTableMetadata;
import io.trino.spi.connector.SchemaTableName;

import java.util.List;

import static java.util.Objects.requireNonNull;

public record TableMetadata(CatalogName catalogName, ConnectorTableMetadata metadata)
{
    public TableMetadata
    {
        requireNonNull(catalogName, "catalogName is null");
        requireNonNull(metadata, "metadata is null");
    }

    public QualifiedObjectName qualifiedName()
    {
        return new QualifiedObjectName(catalogName.toString(), metadata.getTable().getSchemaName(), metadata.getTable().getTableName());
    }

    public SchemaTableName table()
    {
        return metadata.getTable();
    }

    public List columns()
    {
        return metadata.getColumns();
    }

    public ColumnMetadata column(String name)
    {
        return columns().stream()
                .filter(columnMetadata -> columnMetadata.getName().equals(name))
                .findFirst()
                .orElseThrow(() -> new IllegalArgumentException("Invalid column name: " + name));
    }
}