io.journalkeeper.journalstore.JournalStoreQuery Maven / Gradle / Ivy
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/**
* 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.journalkeeper.journalstore;
/**
* @author LiYue
* Date: 2019-05-08
*/
public class JournalStoreQuery {
public static final int CMD_QUERY_ENTRIES = 0;
public static final int CMD_QUERY_PARTITIONS = 1;
public static final int CMD_QUERY_INDEX = 2;
private final int cmd;
private final int partition;
private final long index;
private final int size;
private final long timestamp;
JournalStoreQuery(int cmd, int partition, long index, int size, long timestamp) {
this.cmd = cmd;
this.partition = partition;
this.index = index;
this.size = size;
this.timestamp = timestamp;
}
private JournalStoreQuery(int cmd) {
this(cmd, 0, 0, 0, 0L);
}
private JournalStoreQuery(int partition, long timestamp) {
this(CMD_QUERY_INDEX, partition, 0, 0, timestamp);
}
public static JournalStoreQuery createQueryEntries(int partition, long index, int size) {
return new JournalStoreQuery(CMD_QUERY_ENTRIES, partition, index, size, 0L);
}
public static JournalStoreQuery createQueryPartitions() {
return new JournalStoreQuery(CMD_QUERY_PARTITIONS);
}
public static JournalStoreQuery createQueryIndex(int partition, long timestamp) {
return new JournalStoreQuery(partition, timestamp);
}
public int getCmd() {
return cmd;
}
public long getIndex() {
return index;
}
public int getSize() {
return size;
}
public int getPartition() {
return partition;
}
public long getTimestamp() {
return timestamp;
}
}