| /* |
| * Copyright (C) 2009 The Android Open Source Project |
| * |
| * 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 com.android.providers.contacts; |
| |
| import android.database.AbstractCursor; |
| import android.database.Cursor; |
| |
| /** |
| * Cursor wrapper that reorders rows according to supplied specific position mapping. |
| */ |
| public class ReorderingCursorWrapper extends AbstractCursor { |
| |
| private final Cursor mCursor; |
| private final int[] mPositionMap; |
| |
| /** |
| * Constructor. |
| * |
| * @param cursor wrapped cursor |
| * @param positionMap maps wrapper cursor positions to wrapped cursor positions |
| * so that positionMap[wrapperPosition] == wrappedPosition |
| */ |
| public ReorderingCursorWrapper(Cursor cursor, int[] positionMap) { |
| if (cursor.getCount() != positionMap.length) { |
| throw new IllegalArgumentException("Cursor and position map have different sizes."); |
| } |
| |
| mCursor = cursor; |
| mPositionMap = positionMap; |
| } |
| |
| @Override |
| public void close() { |
| super.close(); |
| mCursor.close(); |
| } |
| |
| @Override |
| public boolean onMove(int oldPosition, int newPosition) { |
| return mCursor.moveToPosition(mPositionMap[newPosition]); |
| } |
| |
| @Override |
| public String[] getColumnNames() { |
| return mCursor.getColumnNames(); |
| } |
| |
| @Override |
| public int getCount() { |
| return mCursor.getCount(); |
| } |
| |
| @Override |
| public double getDouble(int column) { |
| return mCursor.getDouble(column); |
| } |
| |
| @Override |
| public float getFloat(int column) { |
| return mCursor.getFloat(column); |
| } |
| |
| @Override |
| public int getInt(int column) { |
| return mCursor.getInt(column); |
| } |
| |
| @Override |
| public long getLong(int column) { |
| return mCursor.getLong(column); |
| } |
| |
| @Override |
| public short getShort(int column) { |
| return mCursor.getShort(column); |
| } |
| |
| @Override |
| public String getString(int column) { |
| return mCursor.getString(column); |
| } |
| |
| @Override |
| public int getType(int column) { |
| return mCursor.getType(column); |
| } |
| |
| @Override |
| public boolean isNull(int column) { |
| return mCursor.isNull(column); |
| } |
| } |