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java.lang.Objectorg.apache.directory.server.core.changelog.MemoryChangeLogStore
public class MemoryChangeLogStore
A change log store that keeps it's information in memory.
Constructor Summary | |
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MemoryChangeLogStore()
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Method Summary | |
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void |
destroy()
|
Cursor<ChangeLogEvent> |
find()
Gets a Cursor over all the ChangeLogEvents within the system since revision 0. |
Cursor<ChangeLogEvent> |
find(long startRevision,
long endRevision)
Finds the ChangeLogEvents that occurred between a revision range inclusive. |
Cursor<ChangeLogEvent> |
findAfter(long revision)
Finds the ChangeLogEvents that occurred after a revision exclusive. |
Cursor<ChangeLogEvent> |
findBefore(long revision)
Gets a Cursor over the ChangeLogEvents that occurred before a revision exclusive. |
long |
getCurrentRevision()
Gets the current revision of the server (a.k.a. |
Tag |
getLatest()
Gets the latest tag if one was at all taken. |
void |
init(DirectoryService service)
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ChangeLogEvent |
log(LdapPrincipal principal,
org.apache.directory.shared.ldap.ldif.LdifEntry forward,
org.apache.directory.shared.ldap.ldif.LdifEntry reverse)
Records a change as a forward LDIF, a reverse change to revert the change and the authorized principal triggering the revertable change event. |
ChangeLogEvent |
log(LdapPrincipal principal,
org.apache.directory.shared.ldap.ldif.LdifEntry forward,
java.util.List<org.apache.directory.shared.ldap.ldif.LdifEntry> reverses)
Records a change as a forward LDIF, some reverse changes to revert the change and the authorized principal triggering the revertable change event. |
ChangeLogEvent |
lookup(long revision)
Looks up the ChangeLogEvent for a revision. |
Tag |
removeTag(long revision)
Removes a Tag created for a given revision. |
void |
sync()
|
Tag |
tag()
Creates a snapshot of the server at the current revision. |
Tag |
tag(long revision)
Creates a tag for a snapshot of the server in a specific state at a revision. |
Tag |
tag(long revision,
java.lang.String descrition)
Creates a tag with the given description for a snapshot of the server in a specific state at a revision. |
Tag |
tag(java.lang.String description)
Creates a snapshot of the server at the current revision with a description of the snapshot tag. |
java.lang.String |
toString()
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public MemoryChangeLogStore()
Method Detail |
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public Tag tag(long revision) throws java.lang.Exception
TaggableChangeLogStore
tag
in interface TaggableChangeLogStore
revision
- the revision to tag the snapshot
java.lang.Exception
- if there is a problem taking a tag, or if
the revision does not existpublic Tag tag() throws java.lang.Exception
TaggableChangeLogStore
tag
in interface TaggableChangeLogStore
java.lang.Exception
- if there is a problem taking a tagpublic Tag tag(java.lang.String description) throws java.lang.Exception
TaggableChangeLogStore
tag
in interface TaggableChangeLogStore
description
- a description of the state associate with the tag
java.lang.Exception
- if there is a problem taking a tagpublic void init(DirectoryService service) throws java.lang.Exception
init
in interface ChangeLogStore
java.lang.Exception
public void sync() throws java.lang.Exception
sync
in interface ChangeLogStore
java.lang.Exception
public void destroy() throws java.lang.Exception
destroy
in interface ChangeLogStore
java.lang.Exception
public long getCurrentRevision()
ChangeLogStore
getCurrentRevision
in interface ChangeLogStore
public ChangeLogEvent log(LdapPrincipal principal, org.apache.directory.shared.ldap.ldif.LdifEntry forward, org.apache.directory.shared.ldap.ldif.LdifEntry reverse) throws java.lang.Exception
log
in interface ChangeLogStore
principal
- the authorized LDAP principal triggering the changeforward
- LDIF of the change going to the next statereverse
- LDIF (anti-operation): the change required to revert this change
java.lang.Exception
- if there are problems logging the changepublic ChangeLogEvent log(LdapPrincipal principal, org.apache.directory.shared.ldap.ldif.LdifEntry forward, java.util.List<org.apache.directory.shared.ldap.ldif.LdifEntry> reverses) throws java.lang.Exception
log
in interface ChangeLogStore
principal
- the authorized LDAP principal triggering the changeforward
- LDIF of the change going to the next statereverses
- LDIF (anti-operation): the changes required to revert this change
java.lang.Exception
- if there are problems logging the changepublic ChangeLogEvent lookup(long revision) throws java.lang.Exception
ChangeLogStore
lookup
in interface ChangeLogStore
revision
- to get a ChangeLogEvent for
java.lang.Exception
- if there are failures accessing the store
java.lang.IllegalArgumentException
- if the revision is out of range (less than 0
and greater than the current revision)public Cursor<ChangeLogEvent> find() throws java.lang.Exception
ChangeLogStore
find
in interface ChangeLogStore
java.lang.Exception
- if there are failures accessing the storepublic Cursor<ChangeLogEvent> findBefore(long revision) throws java.lang.Exception
ChangeLogStore
findBefore
in interface ChangeLogStore
revision
- the revision number to get the ChangeLogEvents before
java.lang.Exception
- if there are failures accessing the store
java.lang.IllegalArgumentException
- if the revision is out of range (less than 0
and greater than the current revision)public Cursor<ChangeLogEvent> findAfter(long revision) throws java.lang.Exception
ChangeLogStore
findAfter
in interface ChangeLogStore
revision
- the revision number to get the ChangeLogEvents after
java.lang.Exception
- if there are failures accessing the store
java.lang.IllegalArgumentException
- if the revision is out of range (less than 0
and greater than the current revision)public Cursor<ChangeLogEvent> find(long startRevision, long endRevision) throws java.lang.Exception
ChangeLogStore
find
in interface ChangeLogStore
startRevision
- the revision number to start getting the ChangeLogEvents aboveendRevision
- the revision number to start getting the ChangeLogEvents below
java.lang.Exception
- if there are failures accessing the store
java.lang.IllegalArgumentException
- if the start and end revisions are out of range
(less than 0 and greater than the current revision), or if startRevision > endRevisionpublic Tag getLatest() throws java.lang.Exception
TaggableChangeLogStore
getLatest
in interface TaggableChangeLogStore
java.lang.Exception
- on failures to access the tag storepublic Tag removeTag(long revision) throws java.lang.Exception
TaggableChangeLogStore
removeTag
in interface TaggableChangeLogStore
revision
- the revision number that was tagged
java.lang.Exception
- on failures to access the tag storeTaggableChangeLogStore.removeTag(long)
public Tag tag(long revision, java.lang.String descrition) throws java.lang.Exception
TaggableChangeLogStore
tag
in interface TaggableChangeLogStore
revision
- the revision number that was taggeddescrition
- a description of the state associate with the tag
java.lang.Exception
- on failures to access the tag storeTaggableChangeLogStore.tag(long, String)
public java.lang.String toString()
toString
in class java.lang.Object
Object.toString()
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