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1 // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 |
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17 #ifndef __ROMONLYRESOLVER_H__ |
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18 #define __ROMONLYRESOLVER_H__ |
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19 |
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20 #include "DefaultResolver.h" |
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21 #include "RegistryData.h" |
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22 |
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23 class TEComResolverParams; |
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24 |
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25 /** |
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26 @internalComponent |
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27 @since 7.0 |
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28 Special resolver which controls the identification, (resolution), of which implementation |
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29 will be used to satisfy an interface implementation instantiation. This version only allows |
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30 plug-ins which are installed in ROM or are updates of ones originally found in ROM. |
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31 */ |
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32 class CRomOnlyResolver : public CDefaultResolver |
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33 { |
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34 public: |
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35 /** |
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36 @fn NewL(CRegistryData& aRegistry) |
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37 Intended Usage : Standardized safe construction which leaves nothing |
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38 on the cleanup stack. |
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39 Error Condition : Cannot fully construct because of memory limitations. |
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40 @leave KErrNoMemory |
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41 @since 7.0 |
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42 @return A pointer to the new class |
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43 @post CRomOnlyResolver is fully constructed, |
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44 and initialized. |
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45 */ |
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46 static CRomOnlyResolver* NewL(MPublicRegistry& aRegistry); |
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47 |
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48 /** |
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49 @fn ~CRomOnlyResolver() |
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50 Intended Usage : Standard default d'tor |
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51 Error Condition : None |
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52 @since 7.0 |
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53 */ |
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54 ~CRomOnlyResolver(); |
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55 |
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56 /** |
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57 @fn IdentifyImplementationL(TUid aInterfaceUid, |
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58 const TEComResolverParams& aAdditionalParameters) const |
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59 Intended Usage : Request that the resolver identify the most appropriate |
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60 interface implementation. |
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61 Error Condition : |
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62 @since 7.0 |
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63 @param aInterfaceUid The interface for which implementations are requested |
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64 @param aAdditionalParameters Data to be used to refine the search further |
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65 @return The Uid of the best fit interface implementation - KNullUid if no match is found |
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66 @pre Object is fully constructed and initialized |
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67 @post Registry contents are not modified but registry keys may be updated |
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68 */ |
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69 TUid IdentifyImplementationL(TUid aInterfaceUid, |
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70 const TEComResolverParams& aAdditionalParameters)const ; |
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71 |
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72 /** |
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73 @fn ListAllL(TUid aInterfaceUid, |
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74 const TEComResolverParams& aAdditionalParameters) const |
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75 Intended Usage : List all the implementations which satisfy the specified interface. |
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76 Error Condition : |
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77 @since 7.0 |
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78 @param aInterfaceUid The interface for which implementations are requested |
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79 @param aAdditionalParameters Data to be used to refine the search further |
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80 @return Pointer to an array of suitable implementations. Ownership of this array |
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81 is passed to the calling function. |
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82 @pre Object is fully constructed and initialized |
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83 @post Registry contents are not modified but registry keys may be updated |
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84 */ |
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85 RImplInfoArray* ListAllL(TUid aInterfaceUid, |
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86 const TEComResolverParams& aAdditionalParameters)const ; |
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87 |
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88 private: |
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89 /** |
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90 @internalComponent |
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91 @fn CRomOnlyResolver(CRegistryData& aRegistry) |
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92 Intended Usage : Standardized default c'tor |
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93 Error Condition : None |
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94 @since 7.0 |
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95 @post CRomOnlyResolver is fully constructed |
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96 */ |
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97 explicit CRomOnlyResolver(MPublicRegistry& aRegistry); |
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98 |
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99 }; |
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100 |
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101 #endif // __ROMONLYRESOLVER_H__ |
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102 |