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Cassandra support for Spring Data
/*
* Copyright 2018-2021 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
*
* https://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 org.springframework.data.cassandra.core.query.Query;
import org.springframework.data.cassandra.core.query.Update;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
import com.datastax.oss.driver.api.core.CqlIdentifier;
/**
* Implementation of {@link ExecutableUpdateOperation}.
*
* @author Mark Paluch
* @see org.springframework.data.cassandra.core.ExecutableUpdateOperation
* @see org.springframework.data.cassandra.core.query.Query
* @see org.springframework.data.cassandra.core.query.Update
* @since 2.1
*/
class ExecutableUpdateOperationSupport implements ExecutableUpdateOperation {
private final CassandraTemplate template;
public ExecutableUpdateOperationSupport(CassandraTemplate template) {
this.template = template;
}
/* (non-Javadoc)
* @see org.springframework.data.cassandra.core.ExecutableUpdateOperation#update(java.lang.Class)
*/
@Override
public ExecutableUpdate update(Class domainType) {
Assert.notNull(domainType, "DomainType must not be null");
return new ExecutableUpdateSupport(this.template, domainType, Query.empty(), null);
}
static class ExecutableUpdateSupport implements ExecutableUpdate, TerminatingUpdate {
private final CassandraTemplate template;
private final Class domainType;
private final Query query;
private final @Nullable CqlIdentifier tableName;
public ExecutableUpdateSupport(CassandraTemplate template, Class domainType, Query query,
CqlIdentifier tableName) {
this.template = template;
this.domainType = domainType;
this.query = query;
this.tableName = tableName;
}
/* (non-Javadoc)
* @see org.springframework.data.cassandra.core.ExecutableUpdateOperation.UpdateWithTable#inTable(org.springframework.data.cassandra.core.cql.CqlIdentifier)
*/
@Override
public UpdateWithQuery inTable(CqlIdentifier tableName) {
Assert.notNull(tableName, "Table name must not be null");
return new ExecutableUpdateSupport(this.template, this.domainType, this.query, tableName);
}
/* (non-Javadoc)
* @see org.springframework.data.cassandra.core.ExecutableUpdateOperation.UpdateWithQuery#matching(org.springframework.data.cassandra.core.query.Query)
*/
@Override
public TerminatingUpdate matching(Query query) {
Assert.notNull(query, "Query must not be null");
return new ExecutableUpdateSupport(this.template, this.domainType, query, this.tableName);
}
/* (non-Javadoc)
* @see org.springframework.data.cassandra.core.ExecutableUpdateOperation.TerminatingUpdate#apply(org.springframework.data.cassandra.core.query.Update)
*/
@Override
public WriteResult apply(Update update) {
Assert.notNull(update, "Update must not be null");
return this.template.doUpdate(this.query, update, this.domainType, getTableName());
}
private CqlIdentifier getTableName() {
return this.tableName != null ? this.tableName : this.template.getTableName(this.domainType);
}
}
}