io.dirigible.mongodb.jdbc.util.ListMongoIterable.java Source code

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Here is the source code for io.dirigible.mongodb.jdbc.util.ListMongoIterable.java

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/**
 *    Copyright 2015 Georgi Pavlov
 *
 *   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.dirigible.mongodb.jdbc.util;

import java.util.Collection;
import java.util.Iterator;
import java.util.List;

import com.mongodb.Block;
import com.mongodb.Function;
import com.mongodb.client.MongoCursor;
import com.mongodb.client.MongoIterable;

public class ListMongoIterable implements MongoIterable<String> {

    List<String> entries;

    public ListMongoIterable(List<String> backingList) {
        this.entries = backingList;
    }

    @Override
    public <U> MongoIterable<U> map(Function<String, U> mapper) {
        return null;
    }

    @Override
    public MongoCursor<String> iterator() {
        return new LocalIteratorMongoCursor(entries.iterator());
    }

    @Override
    public <A extends Collection<? super String>> A into(A target) {
        return null;
    }

    @Override
    public void forEach(Block<? super String> block) {
    }

    @Override
    public String first() {
        Iterator<String> iter = this.iterator();
        return iter.hasNext() ? this.iterator().next() : null;
    }

    @Override
    public MongoIterable<String> batchSize(int batchSize) {
        return this;
    }

}