package org.wwarn.surveyor.client.core;

/*
 * #%L
 * SurveyorCore
 * %%
 * Copyright (C) 2013 - 2014 University of Oxford
 * %%
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 
 * 3. Neither the name of the University of Oxford nor the names of its contributors
 *    may be used to endorse or promote products derived from this software without
 *    specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * #L%
 */

import java.util.ArrayList;
import java.util.List;

/**
 * Backed by a record list, this is a restricted view of the backing list
 */
public class RecordListView extends RecordList{
    private UnsupportedOperationException unsupportedOperationException = new UnsupportedOperationException();

    public RecordListView(RecordList recordList, BitSet bitSet) {
        final List<Record> records = recordList.getRecords();
        if(bitSet.length() < 1){
            super.records = recordList.records;
        }else {
            for (int i = 0; i < records.size(); i++) {
                if (bitSet.get(i)) {
                    super.records.add(records.get(i));
                }
            }
        }
    }

    public RecordListView() {
    }

    public RecordListView(DataSchema schema) {
        throw unsupportedOperationException;
    }

    @Override
    public RecordList getUniqueRecordsBy(String fieldName) {
        throw unsupportedOperationException;
    }

    @Override
    public void add(Record record) {
        throw unsupportedOperationException;
    }

    @Override
    public void addRecord(String... fields) {
        throw unsupportedOperationException;
    }

    @Override
    public int size() {
        return super.size();
    }

    @Override
    public String toString() {
        return super.toString();
    }
}

package org.wwarn.surveyor.client.core;

/*
 * #%L
 * SurveyorCore
 * %%
 * Copyright (C) 2013 - 2014 University of Oxford
 * %%
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 
 * 3. Neither the name of the University of Oxford nor the names of its contributors
 *    may be used to endorse or promote products derived from this software without
 *    specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * #L%
 */

import java.util.ArrayList;
import java.util.List;

/**
 * Backed by a record list, this is a restricted view of the backing list
 */
public class RecordListView extends RecordList{
    private static UnsupportedOperationException unsupportedOperationException = new UnsupportedOperationException();

    public RecordListView(RecordList recordList, BitSet bitSet) {
        final List<Record> records = recordList.getRecords();
        if(bitSet.length() < 1){
            super.records = recordList.records;
        }else {
            for (int i = 0; i < records.size(); i++) {
                if (bitSet.get(i)) {
                    super.records.add(records.get(i));
                }
            }
        }
    }

    public RecordListView() {
    }

    public RecordListView(DataSchema schema) {
        throw unsupportedOperationException;
    }

    @Override
    public RecordList getUniqueRecordsBy(String fieldName) {
        throw unsupportedOperationException;
    }

    @Override
    public void add(Record record) {
        throw unsupportedOperationException;
    }

    @Override
    public void addRecord(String... fields) {
        throw unsupportedOperationException;
    }

    @Override
    public int size() {
        return super.size();
    }

    @Override
    public String toString() {
        return super.toString();
    }
}

Reduce number of object creations