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Cassandra support for Spring Data
/*
* Copyright 2017-2018 the original author or authors.
*
* 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 org.springframework.data.cassandra.core;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.springframework.util.Assert;
import com.datastax.driver.core.ExecutionInfo;
import com.datastax.driver.core.ResultSet;
import com.datastax.driver.core.Row;
/**
* The result of a write operation.
*
* @author Mark Paluch
* @since 2.0
* @see ResultSet
*/
public class WriteResult {
private final boolean wasApplied;
private final List executionInfo;
private final List rows;
WriteResult(List executionInfo, boolean wasApplied, List rows) {
this.executionInfo = executionInfo;
this.wasApplied = wasApplied;
this.rows = rows;
}
WriteResult(ResultSet resultSet) {
this.executionInfo = resultSet.getAllExecutionInfo();
this.wasApplied = resultSet.wasApplied();
int limit = resultSet.getAvailableWithoutFetching();
List rows = new ArrayList<>(limit);
for (int count = 0; count < limit; count++) {
rows.add(resultSet.one());
}
this.rows = Collections.unmodifiableList(rows);
}
/**
* Create a {@link WriteResult} from {@link ResultSet}.
*
* @param resultSet must not be {@literal null}.
* @return the {@link WriteResult} for {@link ResultSet}.
*/
public static WriteResult of(ResultSet resultSet) {
Assert.notNull(resultSet, "ResultSet must not be null");
return new WriteResult(resultSet);
}
/**
* @return {@literal true} if the write was applied.
*/
public boolean wasApplied() {
return wasApplied;
}
/**
* @return the list of {@link ExecutionInfo}.
*/
public List getExecutionInfo() {
return executionInfo;
}
/**
* @return the {@link Row rows} returned by the write operation.
*/
public List getRows() {
return rows;
}
}