1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License 15 */ 16 package com.android.providers.contacts; 17 18 import android.database.AbstractWindowedCursor; 19 import android.database.Cursor; 20 import android.database.CursorWindow; 21 import android.database.DatabaseUtils; 22 23 /** 24 * Implementation of an in-memory cursor backed by a cursor window. 25 */ 26 public class MemoryCursor extends AbstractWindowedCursor { 27 28 private final String[] mColumnNames; 29 30 public MemoryCursor(String name, String[] columnNames) { 31 setWindow(new CursorWindow(name)); 32 mColumnNames = columnNames; 33 } 34 35 public void fillFromCursor(Cursor cursor) { 36 DatabaseUtils.cursorFillWindow(cursor, 0, getWindow()); 37 } 38 39 @Override 40 public int getCount() { 41 return getWindow().getNumRows(); 42 } 43 44 @Override 45 public String[] getColumnNames() { 46 return mColumnNames; 47 } 48 } 49
