com.facebook.presto.jdbc.internal.spi.plan.Ordering 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.plan;
import com.facebook.presto.jdbc.internal.common.block.SortOrder;
import com.facebook.presto.jdbc.internal.spi.relation.VariableReferenceExpression;
import com.facebook.presto.jdbc.internal.jackson.annotation.JsonCreator;
import com.facebook.presto.jdbc.internal.jackson.annotation.JsonProperty;
import com.facebook.presto.jdbc.internal.javax.annotation.concurrent.Immutable;
import java.util.Objects;
import static java.util.Objects.requireNonNull;
@Immutable
public class Ordering
{
private final VariableReferenceExpression variable;
private final SortOrder sortOrder;
@JsonCreator
public Ordering(
@JsonProperty("variable") VariableReferenceExpression variable,
@JsonProperty("sortOrder") SortOrder sortOrder)
{
this.variable = requireNonNull(variable, "variable is null");
this.sortOrder = requireNonNull(sortOrder, "sortOrder is null");
}
@JsonProperty
public VariableReferenceExpression getVariable()
{
return variable;
}
@JsonProperty
public SortOrder getSortOrder()
{
return sortOrder;
}
@Override
public boolean equals(Object o)
{
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
Ordering that = (Ordering) o;
return Objects.equals(variable, that.variable) &&
Objects.equals(sortOrder, that.sortOrder);
}
@Override
public int hashCode()
{
return Objects.hash(variable, sortOrder);
}
@Override
public String toString()
{
StringBuilder stringBuilder = new StringBuilder(this.getClass().getSimpleName());
stringBuilder.append(" {");
stringBuilder.append("variable='").append(variable).append('\'');
stringBuilder.append(", sortOrder='").append(sortOrder).append('\'');
stringBuilder.append('}');
return stringBuilder.toString();
}
}
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