/*
* 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.operator.window;
import com.facebook.presto.sql.tree.FrameBound;
import com.facebook.presto.sql.tree.WindowFrame;
import java.util.Objects;
import java.util.Optional;
import static com.google.common.base.MoreObjects.toStringHelper;
import static java.util.Objects.requireNonNull;
public class FrameInfo
{
private final WindowFrame.Type type;
private final FrameBound.Type startType;
private final int startChannel;
private final FrameBound.Type endType;
private final int endChannel;
public FrameInfo(
WindowFrame.Type type,
FrameBound.Type startType,
Optional<Integer> startChannel,
FrameBound.Type endType,
Optional<Integer> endChannel)
{
this.type = requireNonNull(type, "type is null");
this.startType = requireNonNull(startType, "startType is null");
this.startChannel = requireNonNull(startChannel, "startChannel is null").orElse(-1);
this.endType = requireNonNull(endType, "endType is null");
this.endChannel = requireNonNull(endChannel, "endChannel is null").orElse(-1);
}
public WindowFrame.Type getType()
{
return type;
}
public FrameBound.Type getStartType()
{
return startType;
}
public int getStartChannel()
{
return startChannel;
}
public FrameBound.Type getEndType()
{
return endType;
}
public int getEndChannel()
{
return endChannel;
}
@Override
public int hashCode()
{
return Objects.hash(type, startType, startChannel, endType, endChannel);
}
@Override
public boolean equals(Object obj)
{
if (this == obj) {
return true;
}
if (obj == null || getClass() != obj.getClass()) {
return false;
}
FrameInfo other = (FrameInfo) obj;
return Objects.equals(this.type, other.type) &&
Objects.equals(this.startType, other.startType) &&
Objects.equals(this.startChannel, other.startChannel) &&
Objects.equals(this.endType, other.endType) &&
Objects.equals(this.endChannel, other.endChannel);
}
@Override
public String toString()
{
return toStringHelper(this)
.add("type", type)
.add("startType", startType)
.add("startChannel", startChannel)
.add("endType", endType)
.add("endChannel", endChannel)
.toString();
}
}