AddFilterRule Method
Adds a standard filter rule or access rule.
Syntax
public boolean addFilterRule(String mask, int accessFlags, long controlFlags);
Remarks
This method adds a standard filter rule and/or access rule for the registry keys that match the specified Mask. Each rule in a ruleset is uniquely identified by its mask; if a rule with the specified mask already exists, the new rule's parameters are merged into it. If the rule is added successfully, this method returns true; otherwise, it returns false.
Standard filter rules determine which registry operations, of those performed on matching registry keys, the class should fire its events for. Access rules instruct the class's system driver to apply certain access restrictions to matching registry keys.
The Mask parameter must be a valid registry key mask according to the Registry Key Masks topic. Only the registry keys which match the specified mask will be covered by the rule.
The AccessFlags parameter specifies which access restrictions the class's system driver should apply to matching registry keys. The value passed for this parameter should be constructed by OR'ing together zero or more of the following flags:
| ACCESS_NONE | 0x00 | No access restrictions. |
| ACCESS_READ_ONLY | 0x01 | Read-only access; writing and deleting is prohibited. |
| ACCESS_WRITE_ONLY | 0x02 | Write-only access; reading and deleting is prohibited. |
| ACCESS_DELETE_PROTECT | 0x04 | Deletion and renaming is prohibited. |
| ACCESS_EXECUTE_PROTECT | 0x08 | Execution is prohibited. |
| ACCESS_NO_CHANGE_DAC | 0x10 | Change of security attributes is prohibited. |
| ACCESS_NO_CHANGE_OWNER | 0x20 | Change of owner is prohibited. |
| ACCESS_RENAME_PROTECT | 0x40 | Renaming is prohibited. |
| ACCESS_DELETE_ONLY_PROTECT | 0x80 | Deletion is prohibited (renaming is not affected). |
| ACCESS_REMOTE_ACCESS_PROTECT | 0x100 | Access from other systems is prohibited. |
| ACCESS_DENY_ALL | 0x200 | All access is denied. |
| ACCESS_ALL_FLAGS | -1 | Used to denote all currently set access restriction flags. |
The ControlFlags parameter specifies which registry operations the class should fire Control Events for. The value passed for this parameter should be constructed by OR'ing together zero or more of the following flags:
| REG_CE_NONE | 0 | Don't fire for any registry operations.
Control Events will not fire for any registry operations. |
| REG_CE_BEFORE_CREATE_KEY | 0x00000001L | Fire before registry key creation operations.
The BeforeCreateKey event will fire anytime the OS attempts to create a registry key. |
| REG_CE_AFTER_CREATE_KEY | 0x00000002L | Fire after registry key creation operations.
The AfterCreateKey event will fire after a registry key creation request has been processed, before the response is returned. |
| REG_CE_BEFORE_OPEN_KEY | 0x00000004L | Fire before registry key open operations.
The BeforeOpenKey event will fire anytime the OS attempts to open a registry key. |
| REG_CE_AFTER_OPEN_KEY | 0x00000008L | Fire after registry key open operations.
The AfterOpenKey event will fire after a registry key open request has been processed, before the response is returned. |
| REG_CE_BEFORE_CLOSE_KEY | 0x00000010L | Fire before registry key close operations.
The BeforeCloseKey event will fire anytime the OS closes a registry key. |
| REG_CE_AFTER_CLOSE_KEY | 0x00000020L | Fire after registry key close operations.
The AfterCloseKey event will fire after a registry key close request has been processed, before the response is returned. |
| REG_CE_BEFORE_DELETE_KEY | 0x00000040L | Fire before registry key delete operations.
The BeforeDeleteKey event will fire anytime the OS attempts to delete a registry key. |
| REG_CE_AFTER_DELETE_KEY | 0x00000080L | Fire after registry key delete operations.
The AfterDeleteKey event will fire after a registry key delete request has been processed, before the response is returned. |
| REG_CE_BEFORE_RENAME_KEY | 0x00000100L | Fire before registry key rename operations.
The BeforeRenameKey event will fire anytime the OS attempts to rename a registry key. |
| REG_CE_AFTER_RENAME_KEY | 0x00000200L | Fire after registry key rename operations.
The AfterRenameKey event will fire after a registry key rename request has been processed, before the response is returned. |
| REG_CE_BEFORE_ENUM_KEY | 0x00000400L | Fire before subkey enumeration operations.
The BeforeEnumerateKey event will fire anytime the OS attempts to enumerate a registry key's subkeys. |
| REG_CE_AFTER_ENUM_KEY | 0x00000800L | Fire after subkey enumeration operations.
The AfterEnumerateKey event will fire after a subkey enumeration request has been processed, before the response is returned. |
| REG_CE_BEFORE_QUERY_KEY | 0x00001000L | Fire before registry key metadata retrieval operations.
The BeforeQueryKey event will fire anytime the OS attempts to retrieve a registry key's metadata. |
| REG_CE_AFTER_QUERY_KEY | 0x00002000L | Fire after registry key metadata retrieval operations.
The AfterQueryKey event will fire after a registry key metadata retrieval request has been processed, before the response is returned. |
| REG_CE_BEFORE_SET_KEY | 0x00004000L | Fire before registry key metadata update operations.
The BeforeSetKey event will fire anytime the OS attempts to a registry key's metadata. |
| REG_CE_AFTER_SET_KEY | 0x00008000L | Fire after registry key metadata update operations.
The AfterSetKey event will fire after a registry key metadata update request has been processed, before the response is returned. |
| REG_CE_BEFORE_DELETE_VALUE | 0x00010000L | Fire before registry value delete operations.
The BeforeDeleteValue event will fire anytime the OS attempts to delete a registry value. |
| REG_CE_AFTER_DELETE_VALUE | 0x00020000L | Fire after registry value delete operations.
The AfterDeleteValue event will fire after a registry value delete request has been processed, before the response is returned. |
| REG_CE_BEFORE_ENUM_VALUE | 0x00040000L | Fire before value enumeration operations.
The BeforeEnumerateValue event will fire anytime the OS attempts to enumerate a registry key's values. |
| REG_CE_AFTER_ENUM_VALUE | 0x00080000L | Fire after value enumeration operations.
The AfterEnumerateValue event will fire after a value enumeration request has been processed, before the response is returned. |
| REG_CE_BEFORE_QUERY_VALUE | 0x00100000L | Fire before registry value query operations.
The BeforeQueryValue event will fire anytime the OS attempts to query a registry value. |
| REG_CE_AFTER_QUERY_VALUE | 0x00200000L | Fire after registry value query operations.
The AfterQueryValue event will fire after a registry value query request has been processed, before the response is returned. |
| REG_CE_BEFORE_SET_VALUE | 0x00400000L | Fire before registry value set/update operations.
The BeforeSetValue event will fire anytime the OS attempts to set or update a registry value. |
| REG_CE_AFTER_SET_VALUE | 0x00800000L | Fire after registry value set/update operations.
The AfterSetValue event will fire after a registry value set or update request has been processed, before the response is returned. |
| REG_CE_ALL | -1 | Fire for all registry operations.
Control Events will fire for all registry operations. |
Note: The methods and properties related to rule management are not intended to be used from multiple threads at once. Applications that wish to use said methods and properties from multiple threads are responsible for employing proper thread synchronization techniques to ensure that manipulation and enumeration of the rule lists occurs in a thread-safe manner.