com.eightkdata.mongowp.bson.abst.AbstractIterableBasedBsonDocument.java Source code

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Here is the source code for com.eightkdata.mongowp.bson.abst.AbstractIterableBasedBsonDocument.java

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/*
 * MongoWP
 * Copyright  2014 8Kdata Technology (www.8kdata.com)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

package com.eightkdata.mongowp.bson.abst;

import com.eightkdata.mongowp.bson.BsonValue;
import com.google.common.collect.Iterables;

public abstract class AbstractIterableBasedBsonDocument extends AbstractBsonDocument {

    private int cachedSize = -1;

    @Override
    public BsonValue<?> get(String key) {
        Entry<?> entry = getEntry(key);
        if (entry == null) {
            return null;
        }
        return entry.getValue();
    }

    @Override
    public boolean containsKey(String key) {
        return getEntry(key) != null;
    }

    @Override
    public Entry<?> getEntry(String key) {
        for (Entry<?> entry : this) {
            if (entry.getKey().equals(key)) {
                return entry;
            }
        }
        return null;
    }

    @Override
    public int size() {
        if (cachedSize < -1) {
            cachedSize = Iterables.size(this);
        }
        return cachedSize;
    }

}