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DefaultColumnPreparedStatement.java
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DefaultColumnPreparedStatement.java
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/*
*
* Copyright (c) 2017 Otávio Santana and others
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Apache License v2.0 which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Apache License v2.0 is available at http://www.opensource.org/licenses/apache2.0.php.
*
* You may elect to redistribute this code under either of these licenses.
*
* Contributors:
*
* Otavio Santana
*
*/
package org.eclipse.jnosql.communication.column.query;
import jakarta.nosql.NonUniqueResultException;
import jakarta.nosql.Params;
import jakarta.nosql.QueryException;
import jakarta.nosql.column.ColumnDeleteQuery;
import jakarta.nosql.column.ColumnEntity;
import jakarta.nosql.column.ColumnFamilyManager;
import jakarta.nosql.column.ColumnPreparedStatement;
import jakarta.nosql.column.ColumnQuery;
import java.time.Duration;
import java.util.Iterator;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import java.util.stream.Stream;
final class DefaultColumnPreparedStatement implements ColumnPreparedStatement {
private final ColumnEntity entity;
private final ColumnQuery columnQuery;
private final ColumnDeleteQuery columnDeleteQuery;
private final PreparedStatementType type;
private final Params params;
private final String query;
private final List<String> paramsLeft;
private final Duration duration;
private final ColumnFamilyManager manager;
private DefaultColumnPreparedStatement(ColumnEntity entity,
ColumnQuery columnQuery,
ColumnDeleteQuery columnDeleteQuery,
PreparedStatementType type,
Params params,
String query,
List<String> paramsLeft,
Duration duration,
ColumnFamilyManager manager) {
this.entity = entity;
this.columnQuery = columnQuery;
this.columnDeleteQuery = columnDeleteQuery;
this.type = type;
this.params = params;
this.query = query;
this.paramsLeft = paramsLeft;
this.manager = manager;
this.duration = duration;
}
@Override
public ColumnPreparedStatement bind(String name, Object value) {
Objects.requireNonNull(name, "name is required");
Objects.requireNonNull(value, "value is required");
paramsLeft.remove(name);
params.bind(name, value);
return this;
}
@Override
public Stream<ColumnEntity> getResult() {
if (!paramsLeft.isEmpty()) {
throw new QueryException("Check all the parameters before execute the query, params left: " + paramsLeft);
}
switch (type) {
case SELECT:
return manager.select(columnQuery);
case DELETE:
manager.delete(columnDeleteQuery);
return Stream.empty();
case UPDATE:
return Stream.of(manager.update(entity));
case INSERT:
if (Objects.isNull(duration)) {
return Stream.of(manager.insert(entity));
} else {
return Stream.of(manager.insert(entity, duration));
}
default:
throw new UnsupportedOperationException("there is not support to operation type: " + type);
}
}
@Override
public Optional<ColumnEntity> getSingleResult() {
Stream<ColumnEntity> entities = getResult();
final Iterator<ColumnEntity> iterator = entities.iterator();
if (!iterator.hasNext()) {
return Optional.empty();
}
final ColumnEntity next = iterator.next();
if (!iterator.hasNext()) {
return Optional.of(next);
}
throw new NonUniqueResultException("The select returns more than one entity, select: " + query);
}
enum PreparedStatementType {
SELECT, DELETE, UPDATE, INSERT
}
@Override
public String toString() {
return query;
}
static ColumnPreparedStatement select(
ColumnQuery columnQuery,
Params params,
String query,
ColumnFamilyManager manager) {
return new DefaultColumnPreparedStatement(null, columnQuery,
null, PreparedStatementType.SELECT, params, query,
params.getParametersNames(), null, manager);
}
static ColumnPreparedStatement delete(ColumnDeleteQuery columnDeleteQuery,
Params params,
String query,
ColumnFamilyManager manager) {
return new DefaultColumnPreparedStatement(null, null,
columnDeleteQuery, PreparedStatementType.DELETE, params, query,
params.getParametersNames(), null, manager);
}
static ColumnPreparedStatement insert(ColumnEntity entity,
Params params,
String query,
Duration duration,
ColumnFamilyManager manager) {
return new DefaultColumnPreparedStatement(entity, null,
null, PreparedStatementType.INSERT, params, query,
params.getParametersNames(), duration, manager);
}
static ColumnPreparedStatement update(ColumnEntity entity,
Params params,
String query,
ColumnFamilyManager manager) {
return new DefaultColumnPreparedStatement(entity, null,
null, PreparedStatementType.UPDATE, params, query,
params.getParametersNames(), null, manager);
}
}