SingleResult.java

/*
 * Copyright 2016 requery.io
 *
 * 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 io.requery.sql;

import io.requery.query.BaseResult;
import io.requery.util.CloseableIterator;

import java.util.Collections;
import java.util.Iterator;

class SingleResult<E> extends BaseResult<E> {

    private final E element;

    SingleResult(E element) {
        super(1);
        this.element = element;
    }

    @Override
    public CloseableIterator<E> iterator(int skip, int take) {
        final Iterator<E> iterator = Collections.singleton(element).iterator();
        return new CloseableIterator<E>() {
            @Override
            public void close() {
            }

            @Override
            public boolean hasNext() {
                return iterator.hasNext();
            }

            @Override
            public E next() {
                return iterator.next();
            }
        };
    }
}