5 // Copyright (c) 2007-2008 Jiri Moudry, Pascal Craponne
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7 // Permission is hereby granted, free of charge, to any person obtaining a copy
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8 // of this software and associated documentation files (the "Software"), to deal
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9 // in the Software without restriction, including without limitation the rights
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10 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 // copies of the Software, and to permit persons to whom the Software is
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12 // furnished to do so, subject to the following conditions:
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14 // The above copyright notice and this permission notice shall be included in
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15 // all copies or substantial portions of the Software.
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17 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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27 using System.Collections.Generic;
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28 using System.Data.Linq.Mapping;
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29 using System.Reflection;
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31 namespace DbLinq.Data.Linq
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34 /// Interface to watch modifications on registered entities
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35 /// Currently supports:
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36 /// - IModified (kept for compatibility, not recommended since it does not allow partial updates)
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37 /// - INotifyPropertyChanging and INotifyPropertyChanged (best choice)
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38 /// - raw objects (keeps a copy of all entity data)
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40 internal interface IMemberModificationHandler
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43 /// Start to watch an entity. From here, changes will make IsModified() return true
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45 /// <param name="entity"></param>
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46 /// <param name="metaModel"></param>
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47 void Register(object entity, MetaModel metaModel);
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50 /// Start to watch an entity. From here, changes will make IsModified() return true
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52 /// <param name="entity"></param>
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53 /// <param name="entityOriginalState"></param>
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54 /// <param name="metaModel"></param>
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55 void Register(object entity, object entityOriginalState, MetaModel metaModel);
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58 /// Returns if the entity was modified since it has been Register()ed for the first time
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60 /// <param name="entity"></param>
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61 /// <returns></returns>
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62 /// <param name="metaModel"></param>
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63 bool IsModified(object entity, MetaModel metaModel);
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66 /// Marks the entity as not dirty.
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68 /// <param name="entity"></param>
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69 /// <param name="metaModel"></param>
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70 void ClearModified(object entity, MetaModel metaModel);
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73 /// Returns a list of all modified properties since last Register/ClearModified
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75 /// <param name="entity"></param>
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76 /// <returns></returns>
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77 /// <param name="metaModel"></param>
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78 IList<MemberInfo> GetModifiedProperties(object entity, MetaModel metaModel);
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81 /// Unregisters an entity.
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82 /// This is useful when it is switched from update to delete list
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84 /// <param name="entity"></param>
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85 void Unregister(object entity);
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