com.facebook.presto.jdbc.internal.spi.ConnectorTableMetadata Maven / Gradle / Ivy
/*
* 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 com.facebook.presto.jdbc.internal.spi;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class ConnectorTableMetadata
{
private final SchemaTableName table;
private final List columns;
/* nullable */
private final String owner;
private final boolean sampled;
public ConnectorTableMetadata(SchemaTableName table, List columns)
{
this(table, columns, null);
}
public ConnectorTableMetadata(SchemaTableName table, List columns, String owner)
{
this(table, columns, owner, false);
}
public ConnectorTableMetadata(SchemaTableName table, List columns, String owner, boolean sampled)
{
if (table == null) {
throw new NullPointerException("table is null or empty");
}
if (columns == null) {
throw new NullPointerException("columns is null");
}
this.table = table;
this.columns = Collections.unmodifiableList(new ArrayList<>(columns));
this.owner = owner;
this.sampled = sampled;
}
public boolean isSampled()
{
return sampled;
}
public SchemaTableName getTable()
{
return table;
}
public List getColumns()
{
return columns;
}
/**
* @return table owner or null
*/
public String getOwner()
{
return owner;
}
@Override
public String toString()
{
StringBuilder sb = new StringBuilder("ConnectorTableMetadata{");
sb.append("table=").append(table);
sb.append(", columns=").append(columns);
sb.append(", owner=").append(owner);
sb.append('}');
return sb.toString();
}
}