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AbstractGraphRepository.java
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AbstractGraphRepository.java
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/*
* Copyright (c) 2022 Contributors to the Eclipse Foundation
* 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.mapping.graph.query;
import jakarta.data.page.Page;
import jakarta.data.page.PageRequest;
import org.eclipse.jnosql.mapping.core.NoSQLPage;
import org.eclipse.jnosql.mapping.core.query.AbstractRepository;
import org.eclipse.jnosql.mapping.graph.GraphTemplate;
import org.eclipse.jnosql.mapping.metadata.EntityMetadata;
import java.util.List;
import java.util.Objects;
import java.util.stream.Stream;
abstract class AbstractGraphRepository<T, K> extends AbstractRepository<T, K> {
protected abstract GraphTemplate template();
@Override
public long count() {
return template().count(entityMetadata().name());
}
@Override
public Page<T> findAll(PageRequest pageRequest) {
Objects.requireNonNull(pageRequest, "PageRequest is required");
EntityMetadata metadata = entityMetadata();
List<T> entities = template().traversalVertex()
.hasLabel(metadata.type())
.skip(NoSQLPage.skip(pageRequest))
.limit(pageRequest.size())
.<T>result()
.toList();
return NoSQLPage.of(entities, pageRequest);
}
@Override
public Stream<T> findAll() {
return template().findAll(type());
}
@Override
public void deleteAll() {
template().deleteAll(entityMetadata().type());
}
}