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java.lang.Objectcom.sleepycat.je.tree.Node
public abstract class Node
A Node contains all the common base information for any JE B-Tree node.
Constructor Summary | |
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protected |
Node(boolean init)
Create a new node, assigning it the next available node id. |
Method Summary | |
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(package private) abstract void |
accountForSubtreeRemoval(INList inList,
UtilizationTracker tracker)
Remove yourself from the in memory list if you're a type of node that is put there. |
protected abstract boolean |
canBeAncestor(boolean targetContainsDuplicates)
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boolean |
containsDuplicates()
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void |
dump(int nSpaces)
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void |
dumpLog(java.lang.StringBuffer sb,
boolean verbose)
Write the object into the string buffer for log dumping. |
(package private) java.lang.String |
dumpString(int nSpaces,
boolean dumpTags)
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static long |
getLastId()
Get the latest id, for checkpointing. |
(package private) int |
getLevel()
Cover for LN's and just return 0 since they'll always be at the bottom of the tree. |
int |
getLogSize()
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abstract LogEntryType |
getLogType()
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protected long |
getMemorySizeIncludedByParent()
Return the approximate size of this node in memory, if this size should be included in it's parents memory accounting. |
static long |
getNextNodeId()
Increment and return the next usable id. |
long |
getNodeId()
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long |
getTransactionId()
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java.lang.String |
getType()
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protected abstract boolean |
isSoughtNode(long nid,
boolean updateGeneration)
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(package private) abstract boolean |
isValidForDelete()
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void |
latchShared()
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(package private) boolean |
matchLNByNodeId(TreeLocation location,
long nodeId)
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void |
postFetchInit(DatabaseImpl db,
long sourceLsn)
Initialize a node that has been faulted in from the log |
void |
readFromLog(java.nio.ByteBuffer itemBuffer,
byte entryTypeVersion)
Initialize this object from the data in itemBuf. |
(package private) abstract void |
rebuildINList(INList inList)
Add yourself to the in memory list if you're a type of node that should belong. |
void |
releaseLatch()
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static void |
setLastNodeId(long id)
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(package private) void |
setNodeId(long nid)
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java.lang.String |
shortDescription()
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java.lang.String |
toString()
Default toString method at the root of the tree. |
void |
verify(byte[] maxKey)
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void |
writeToLog(java.nio.ByteBuffer logBuffer)
Serialize this object into the buffer. |
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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protected Node(boolean init)
Method Detail |
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public static void setLastNodeId(long id)
public static long getNextNodeId()
public static long getLastId()
public void postFetchInit(DatabaseImpl db, long sourceLsn) throws DatabaseException
DatabaseException
public long getNodeId()
void setNodeId(long nid)
public void latchShared() throws DatabaseException
DatabaseException
public void releaseLatch() throws LatchNotHeldException
LatchNotHeldException
public void verify(byte[] maxKey) throws DatabaseException
DatabaseException
public boolean containsDuplicates()
int getLevel()
boolean matchLNByNodeId(TreeLocation location, long nodeId) throws DatabaseException
DatabaseException
abstract void rebuildINList(INList inList) throws DatabaseException
DatabaseException
abstract void accountForSubtreeRemoval(INList inList, UtilizationTracker tracker) throws DatabaseException
DatabaseException
abstract boolean isValidForDelete() throws DatabaseException
DatabaseException
protected abstract boolean isSoughtNode(long nid, boolean updateGeneration) throws DatabaseException
DatabaseException
protected abstract boolean canBeAncestor(boolean targetContainsDuplicates)
protected long getMemorySizeIncludedByParent()
public java.lang.String toString()
toString
in class java.lang.Object
public void dump(int nSpaces)
java.lang.String dumpString(int nSpaces, boolean dumpTags)
public java.lang.String shortDescription()
public java.lang.String getType()
public abstract LogEntryType getLogType()
public int getLogSize()
getLogSize
in interface Loggable
Loggable.getLogSize()
public void writeToLog(java.nio.ByteBuffer logBuffer)
Loggable
writeToLog
in interface Loggable
logBuffer
- is the destination bufferLoggable.writeToLog(java.nio.ByteBuffer)
public void readFromLog(java.nio.ByteBuffer itemBuffer, byte entryTypeVersion) throws LogException
Loggable
readFromLog
in interface Loggable
LogException
Loggable.readFromLog(java.nio.ByteBuffer, byte)
public void dumpLog(java.lang.StringBuffer sb, boolean verbose)
Loggable
dumpLog
in interface Loggable
sb
- destination string bufferverbose
- if true, dump the full, verbose versionLoggable.dumpLog(java.lang.StringBuffer, boolean)
public long getTransactionId()
getTransactionId
in interface Loggable
Loggable.getTransactionId()
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