Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
AbstractTableModel |
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1 | // Copyright 2004, 2005 The Apache Software Foundation |
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2 | // |
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3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
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4 | // you may not use this file except in compliance with the License. |
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5 | // You may obtain a copy of the License at |
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6 | // |
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7 | // http://www.apache.org/licenses/LICENSE-2.0 |
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8 | // |
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9 | // Unless required by applicable law or agreed to in writing, software |
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10 | // distributed under the License is distributed on an "AS IS" BASIS, |
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11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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12 | // See the License for the specific language governing permissions and |
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13 | // limitations under the License. |
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14 | ||
15 | package org.apache.tapestry.contrib.table.model.common; |
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16 | ||
17 | import org.apache.tapestry.contrib.table.model.ITableModel; |
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18 | import org.apache.tapestry.contrib.table.model.ITablePagingState; |
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19 | import org.apache.tapestry.contrib.table.model.ITableSortingState; |
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20 | import org.apache.tapestry.contrib.table.model.simple.SimpleTableState; |
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21 | ||
22 | import java.io.Serializable; |
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23 | ||
24 | /** |
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25 | * A base table model that implements the handling of the model state. |
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26 | * Used by most standard ITableModel implementations. |
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27 | * |
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28 | * @author mindbridge |
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29 | */ |
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30 | public abstract class AbstractTableModel implements ITableModel, Serializable |
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31 | { |
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32 | private SimpleTableState m_objTableState; |
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33 | ||
34 | protected AbstractTableModel() |
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35 | { |
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36 | 0 | this(new SimpleTableState()); |
37 | 0 | } |
38 | ||
39 | protected AbstractTableModel(SimpleTableState objTableState) |
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40 | 0 | { |
41 | 0 | m_objTableState = objTableState; |
42 | 0 | } |
43 | ||
44 | /** |
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45 | * @see org.apache.tapestry.contrib.table.model.ITableModel#getPagingState() |
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46 | */ |
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47 | public ITablePagingState getPagingState() |
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48 | { |
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49 | 0 | return getState().getPagingState(); |
50 | } |
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51 | ||
52 | /** |
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53 | * @see org.apache.tapestry.contrib.table.model.ITableModel#getSortingState() |
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54 | */ |
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55 | public ITableSortingState getSortingState() |
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56 | { |
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57 | 0 | return getState().getSortingState(); |
58 | } |
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59 | ||
60 | /** |
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61 | * Returns the tableState. |
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62 | * @return SimpleTableState |
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63 | */ |
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64 | public SimpleTableState getState() |
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65 | { |
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66 | 0 | return m_objTableState; |
67 | } |
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68 | ||
69 | public int getPageCount() |
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70 | { |
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71 | 0 | int nRowCount = getRowCount(); |
72 | 0 | if (nRowCount == 0) |
73 | 0 | return 1; |
74 | ||
75 | 0 | int nPageSize = getPagingState().getPageSize(); |
76 | 0 | if (nPageSize <= 0) |
77 | 0 | return 1; |
78 | ||
79 | 0 | return (nRowCount - 1) / nPageSize + 1; |
80 | } |
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81 | } |