/*
* 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.plugin.jdbc;
import com.facebook.presto.spi.ColumnHandle;
import com.facebook.presto.spi.ColumnMetadata;
import com.facebook.presto.spi.type.Type;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import java.util.Objects;
import static com.google.common.base.MoreObjects.toStringHelper;
import static java.util.Objects.requireNonNull;
public final class JdbcColumnHandle
implements ColumnHandle
{
private final String connectorId;
private final String columnName;
private final Type columnType;
@JsonCreator
public JdbcColumnHandle(
@JsonProperty("connectorId") String connectorId,
@JsonProperty("columnName") String columnName,
@JsonProperty("columnType") Type columnType)
{
this.connectorId = requireNonNull(connectorId, "connectorId is null");
this.columnName = requireNonNull(columnName, "columnName is null");
this.columnType = requireNonNull(columnType, "columnType is null");
}
@JsonProperty
public String getConnectorId()
{
return connectorId;
}
@JsonProperty
public String getColumnName()
{
return columnName;
}
@JsonProperty
public Type getColumnType()
{
return columnType;
}
public ColumnMetadata getColumnMetadata()
{
return new ColumnMetadata(columnName, columnType);
}
@Override
public boolean equals(Object obj)
{
if (this == obj) {
return true;
}
if ((obj == null) || (getClass() != obj.getClass())) {
return false;
}
JdbcColumnHandle o = (JdbcColumnHandle) obj;
return Objects.equals(this.connectorId, o.connectorId) &&
Objects.equals(this.columnName, o.columnName);
}
@Override
public int hashCode()
{
return Objects.hash(connectorId, columnName);
}
@Override
public String toString()
{
return toStringHelper(this)
.add("connectorId", connectorId)
.add("columnName", columnName)
.add("columnType", columnType)
.toString();
}
}