Java Doc for Cluster.java in  » Database-DBMS » Ozone-1.1 » org » ozoneDB » core » classicStore » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database DBMS » Ozone 1.1 » org.ozoneDB.core.classicStore   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.ozoneDB.core.classicStore.Cluster Cluster public class Cluster extends Object (Code) Inner Class :class Chunk extends Object Field Summary final public static  String CLUSTER_FILE_SUFF      final public static  byte CL_HEADER_CHUNK      final public static  int DATA      final public static  byte DATA_CHUNK      final public static  byte DATA_HEADER_CHUNK      final public static  byte DATA_OID_CHUNK      final public static  byte LEAKS      final public static  String LEAK_FILE_SUFF      final public static  double LEAK_WEIGHT      public static  int MAX_SIZE      final public static  byte NONE      final public static  byte OBJECTS      final public static  String RECOVERY_SUFF      final public static  int STATE      final public static  int TRANS      final public static  int VERSION       ClusterID cid       ClassicStore classicStore       long clusterSize       Env env       long leakSize       DxCollection objects       byte recoveryMode       DataOutputStream stream      Constructor Summary public   Cluster(Env _env, ClassicStore _classicStore)      public   Cluster(Env _env, ClassicStore _classicStore, ClusterID _cid)      Method Summary public  void appendObject(DeathObject dobj, TransactionID tid, boolean serialize, boolean useClone)      final public  void beginRecovery(byte mode)      public  void close()      final public  ClusterID cluID()      final public  void endRecovery(byte mode)      final public  File fileHandle()      protected  void finalize()      final public  File leakFileHandle()      public  long leakSize()      protected  boolean needsCompressing()      Checks, if the specified cluster needs to be compressed. final public  DxCollection objects()      public  void open()      public  DxCollection readLeaks(TransactionID rollBackTid, boolean ordered)      public  boolean readObjects(int whatToRead, TransactionID rollBackTid)      public  void removeFromDisk()      public  void rollBack(TransactionID rollBackTid)      public  void rollBackLeaks(TransactionID rollBackTid)      final public  long size()      public  void writeHeader()      public  void writeLeak(DeathObject dobj, TransactionID tid)      public  void writeLeak(ObjectID oid, TransactionID tid, long objSize)      Field Detail CLUSTER_FILE_SUFF final public static String CLUSTER_FILE_SUFF(Code) CL_HEADER_CHUNK final public static byte CL_HEADER_CHUNK(Code) DATA final public static int DATA(Code) DATA_CHUNK final public static byte DATA_CHUNK(Code) DATA_HEADER_CHUNK final public static byte DATA_HEADER_CHUNK(Code) DATA_OID_CHUNK final public static byte DATA_OID_CHUNK(Code) LEAKS final public static byte LEAKS(Code) LEAK_FILE_SUFF final public static String LEAK_FILE_SUFF(Code) LEAK_WEIGHT final public static double LEAK_WEIGHT(Code) MAX_SIZE public static int MAX_SIZE(Code) NONE final public static byte NONE(Code) OBJECTS final public static byte OBJECTS(Code) RECOVERY_SUFF final public static String RECOVERY_SUFF(Code) STATE final public static int STATE(Code) TRANS final public static int TRANS(Code) VERSION final public static int VERSION(Code) cid ClusterID cid(Code) classicStore ClassicStore classicStore(Code) clusterSize long clusterSize(Code) env Env env(Code) leakSize long leakSize(Code) objects DxCollection objects(Code) recoveryMode byte recoveryMode(Code) stream DataOutputStream stream(Code) Constructor Detail Cluster public Cluster(Env _env, ClassicStore _classicStore)(Code) Cluster public Cluster(Env _env, ClassicStore _classicStore, ClusterID _cid)(Code) Method Detail appendObject public void appendObject(DeathObject dobj, TransactionID tid, boolean serialize, boolean useClone) throws Exception(Code) beginRecovery final public void beginRecovery(byte mode)(Code) close public void close() throws IOException(Code) cluID final public ClusterID cluID()(Code) endRecovery final public void endRecovery(byte mode)(Code) fileHandle final public File fileHandle()(Code) finalize protected void finalize() throws Throwable(Code) leakFileHandle final public File leakFileHandle()(Code) leakSize public long leakSize()(Code) needsCompressing protected boolean needsCompressing()(Code) Checks, if the specified cluster needs to be compressed. objects final public DxCollection objects()(Code) open public void open() throws IOException(Code) readLeaks public DxCollection readLeaks(TransactionID rollBackTid, boolean ordered) throws Exception(Code) readObjects public boolean readObjects(int whatToRead, TransactionID rollBackTid) throws Exception(Code) reads all objects from the cluster, while dropping leaks in normal mode or broken-transaction-objects in recovery mode; returns false if any objects were dropped removeFromDisk public void removeFromDisk() throws IOException(Code) rollBack public void rollBack(TransactionID rollBackTid) throws Exception(Code) rollBackLeaks public void rollBackLeaks(TransactionID rollBackTid) throws Exception(Code) size final public long size()(Code) The cluster size has to different meanings: - while writing it means the size of the cluster file, so that we can limit the file's size as good as possible to the user defined maximum cluster size - while reading it means the sum of the sizes of all its death objects, so that we can determine exactly the space we will need in the object buffer of the cluster space writeHeader public void writeHeader() throws IOException(Code) writeLeak public void writeLeak(DeathObject dobj, TransactionID tid) throws Exception(Code) writeLeak public void writeLeak(ObjectID oid, TransactionID tid, long objSize) throws Exception(Code) Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)