| 1 | // Copyright 2004-2007 Jean-Francois Poilpret |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | package net.sourceforge.hivegui.table; |
| 16 | |
| 17 | import java.lang.reflect.Array; |
| 18 | |
| 19 | /** |
| 20 | * @author Jean-Francois Poilpret |
| 21 | */ |
| 22 | public final class EmptyDataListModel<T> implements DataListModel<T> |
| 23 | { |
| 24 | public void setRows(T[] items) |
| 25 | { |
| 26 | } |
| 27 | |
| 28 | public void addRow(T item) |
| 29 | { |
| 30 | } |
| 31 | |
| 32 | public void addRow(int row, T item) |
| 33 | { |
| 34 | } |
| 35 | |
| 36 | public void setRow(int row, T item) |
| 37 | { |
| 38 | } |
| 39 | |
| 40 | public void removeRow(T item) |
| 41 | { |
| 42 | } |
| 43 | |
| 44 | public void removeRow(int row) |
| 45 | { |
| 46 | } |
| 47 | |
| 48 | public void clear() |
| 49 | { |
| 50 | } |
| 51 | |
| 52 | @SuppressWarnings("unchecked") |
| 53 | public EmptyDataListModel(Class<T> beanClass) |
| 54 | { |
| 55 | _beanClass = beanClass; |
| 56 | _emptyArray = (T[]) Array.newInstance(beanClass, 0); |
| 57 | } |
| 58 | |
| 59 | public Class<T> getRowClass() |
| 60 | { |
| 61 | return _beanClass; |
| 62 | } |
| 63 | public int getRowCount() |
| 64 | { |
| 65 | return 0; |
| 66 | } |
| 67 | public T getRow(int row) |
| 68 | { |
| 69 | return null; |
| 70 | } |
| 71 | public T[] getRows() |
| 72 | { |
| 73 | return _emptyArray; |
| 74 | } |
| 75 | |
| 76 | // No need for listeners since this model is immutable |
| 77 | public void addDataListModelListener(DataListModelListener listener) |
| 78 | { |
| 79 | } |
| 80 | |
| 81 | public void removeDataListModelListener(DataListModelListener listener) |
| 82 | { |
| 83 | } |
| 84 | |
| 85 | final protected Class<T> _beanClass; |
| 86 | final private T[] _emptyArray; |
| 87 | } |