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DefaultSelectQuery.java
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DefaultSelectQuery.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.communication.semistructured;
import jakarta.data.Sort;
import java.util.Collections;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import static java.util.Collections.unmodifiableList;
import static java.util.Optional.ofNullable;
/**
* The default implementation of column query.
*/
record DefaultSelectQuery(long limit, long skip, String name,
List<String> columns, List<Sort<?>> sorts, CriteriaCondition criteriaCondition)
implements SelectQuery {
@Override
public Optional<CriteriaCondition> condition() {
return ofNullable(criteriaCondition).map(CriteriaCondition::readOnly);
}
@Override
public List<String> columns() {
return unmodifiableList(columns);
}
@Override
public List<Sort<?>> sorts() {
return unmodifiableList(sorts);
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (!(o instanceof SelectQuery that)) {
return false;
}
return limit == that.limit() &&
skip == that.skip() &&
Objects.equals(name, that.name()) &&
Objects.equals(columns, that.columns()) &&
Objects.equals(sorts, that.sorts()) &&
Objects.equals(criteriaCondition, that.condition().orElse(null));
}
@Override
public int hashCode() {
return Objects.hash(limit, skip, name, columns, sorts, criteriaCondition);
}
static SelectQuery countBy(SelectQuery query) {
return new DefaultSelectQuery(0, 0, query.name(), query.columns(),
Collections.emptyList(), query.condition().orElse(null));
}
static SelectQuery existsBy(SelectQuery query) {
return new DefaultSelectQuery(1, 0, query.name(), query.columns(),
Collections.emptyList(), query.condition().orElse(null));
}
}