Java tutorial
/* * 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.prestosql.execution; import com.fasterxml.jackson.annotation.JsonCreator; import com.fasterxml.jackson.annotation.JsonProperty; import com.google.common.primitives.Longs; import io.prestosql.metadata.Split; import io.prestosql.sql.planner.plan.PlanNodeId; import static com.google.common.base.MoreObjects.toStringHelper; import static java.util.Objects.requireNonNull; public class ScheduledSplit { private final long sequenceId; private final PlanNodeId planNodeId; private final Split split; @JsonCreator public ScheduledSplit(@JsonProperty("sequenceId") long sequenceId, @JsonProperty("planNodeId") PlanNodeId planNodeId, @JsonProperty("split") Split split) { this.sequenceId = sequenceId; this.planNodeId = requireNonNull(planNodeId, "planNodeId is null"); this.split = requireNonNull(split, "split is null"); } @JsonProperty public long getSequenceId() { return sequenceId; } @JsonProperty public PlanNodeId getPlanNodeId() { return planNodeId; } @JsonProperty public Split getSplit() { return split; } @Override public int hashCode() { return Longs.hashCode(sequenceId); } @Override public boolean equals(Object obj) { if (this == obj) { return true; } if (obj == null || getClass() != obj.getClass()) { return false; } final ScheduledSplit other = (ScheduledSplit) obj; return this.sequenceId == other.sequenceId; } @Override public String toString() { return toStringHelper(this).add("sequenceId", sequenceId).add("planNodeId", planNodeId).add("split", split) .toString(); } }