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org.apache.torque.engine.platform.PlatformMssqlImpl |
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1 | package org.apache.torque.engine.platform; |
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2 | ||
3 | /* |
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4 | * Copyright 2001-2005 The Apache Software Foundation. |
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5 | * |
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6 | * Licensed under the Apache License, Version 2.0 (the "License") |
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7 | * you may not use this file except in compliance with the License. |
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8 | * You may obtain a copy of the License at |
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9 | * |
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10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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11 | * |
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12 | * Unless required by applicable law or agreed to in writing, software |
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13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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15 | * See the License for the specific language governing permissions and |
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16 | * limitations under the License. |
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17 | */ |
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18 | ||
19 | import org.apache.torque.engine.database.model.Domain; |
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20 | import org.apache.torque.engine.database.model.SchemaType; |
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21 | ||
22 | /** |
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23 | * MS SQL Platform implementation. |
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24 | * |
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25 | * @author <a href="mailto:mpoeschl@marmot.at">Martin Poeschl</a> |
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26 | * @version $Id: PlatformMssqlImpl.java 239626 2005-08-24 12:19:51Z henning $ |
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27 | */ |
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28 | public class PlatformMssqlImpl extends PlatformDefaultImpl |
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29 | { |
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30 | /** |
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31 | * Default constructor. |
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32 | */ |
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33 | public PlatformMssqlImpl() |
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34 | { |
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35 | 1 | super(); |
36 | 1 | initialize(); |
37 | 1 | } |
38 | ||
39 | /** |
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40 | * Initializes db specific domain mapping. |
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41 | */ |
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42 | private void initialize() |
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43 | { |
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44 | 1 | setSchemaDomainMapping(new Domain(SchemaType.INTEGER, "INT")); |
45 | 1 | setSchemaDomainMapping(new Domain(SchemaType.BOOLEANINT, "INT")); |
46 | 1 | setSchemaDomainMapping(new Domain(SchemaType.DOUBLE, "FLOAT")); |
47 | 1 | setSchemaDomainMapping(new Domain(SchemaType.LONGVARCHAR, "TEXT")); |
48 | 1 | setSchemaDomainMapping(new Domain(SchemaType.DATE, "DATETIME")); |
49 | 1 | setSchemaDomainMapping(new Domain(SchemaType.TIME, "DATETIME")); |
50 | 1 | setSchemaDomainMapping(new Domain(SchemaType.TIMESTAMP, "DATETIME")); |
51 | 1 | setSchemaDomainMapping(new Domain(SchemaType.BINARY, "BINARY(7132)")); |
52 | 1 | setSchemaDomainMapping(new Domain(SchemaType.VARBINARY, "IMAGE")); |
53 | 1 | setSchemaDomainMapping(new Domain(SchemaType.LONGVARBINARY, "IMAGE")); |
54 | 1 | } |
55 | ||
56 | /** |
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57 | * @see Platform#getMaxColumnNameLength() |
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58 | */ |
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59 | public int getMaxColumnNameLength() |
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60 | { |
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61 | 0 | return 30; |
62 | } |
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63 | ||
64 | /** |
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65 | * @return Explicitly returns <code>NULL</code> if null values are |
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66 | * allowed (as recomended by Microsoft). |
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67 | * @see Platform#getNullString(boolean) |
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68 | */ |
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69 | public String getNullString(boolean notNull) |
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70 | { |
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71 | 16 | return (notNull ? "NOT NULL" : "NULL"); |
72 | } |
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73 | ||
74 | } |
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