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:: com :: sun :: star :: registry ::

service NestedRegistry
Description
supports a shared view on two different registries. The registry files will be opened in two different modes, registry1 will be opened with read/write rights and registry2 will be opened read-only. In the context of this service, the functions open, close, and destroy from XSimpleRegistry are not supported and throw an exception if they are used.
Functions of XSimpleRegistry:
getURL
returns the name of registry1.
isValid
checks if registry1 is valid. If the interface is not NULL then registry1 should always be valid.
isReadOnly
checks if registry1 has write protection.
mergeKey
merges all information from the specified registry in registry1.
getRootKey
returns a virtual rootkey of both registries.

Functions of XRegistryKey:
openKey
returns a virtual key which is specified in registy1 or registry2.
deleteKey
deletes the key only if it is present in registry1.
setLongValue, setAsciiValue, setStringValue, setBinaryValue
sets the value at the specified key in registry1.
getLongValue, getAsciiValue, getStringValue, getBinaryValue
returns the value at the specified key in registry1, or if the value is not present in registry1, it will return the value of registry2.
openKeys
returns a sequence of all subkeys in both registries.
getKeyNames
returns a sequence with the names of all subkeys in both registries.

Note: all write functions only work on registry1.

How to initialize the registries:
Use a sequence of XSimpleRegistry with two elements. The first element must be the registry which is opened with read/write rights and the second element must be the read-only one.
Two different ways are possible:
  • use XMultiServiceFactory::createInstanceWithArguments() to create an instance of this service where the value of the any parameter must be the sequence with the two open registries.
  • use the initialize function of the ::com::sun::star::lang::XInitialization interface where the value of the any parameter must be the sequence with the two open registries.

Guarantees:
  • -thread safe

Exported Interfaces - Summary
XSimpleRegistry
(referenced entity's summary:)
allows access to a registry (a persistent data source). The data is stored in a hierarchical key structure beginning with a root key. Each key can store a value and can have multiple subkeys.
::com::sun::star::lang::XInitialization
(referenced entity's summary:)
initializes an object directly after its creation.
Exported Interfaces - Details
XSimpleRegistry
(referenced entity's summary:)
allows access to a registry (a persistent data source). The data is stored in a hierarchical key structure beginning with a root key. Each key can store a value and can have multiple subkeys.
::com::sun::star::lang::XInitialization
(referenced entity's summary:)
initializes an object directly after its creation.

 
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