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This appendix contains an overview of those classes that the application programmer will typically use. The aim of this appendix is to provide a quick reference guide to these classes for use when writing applications in TxCore. For clarity only the public and protected interfaces of the classes will be given.
Example B.1. Class LockManager
public class LockResult
{
public static final int GRANTED;
public static final int REFUSED;
public static final int RELEASED;
};
public class ConflictType
{
public static final int CONFLICT;
public static final int COMPATIBLE;
public static final int PRESENT;
};
public abstract class LockManager extends StateManager
{
public static final int defaultRetry;
public static final int defaultTimeout;
public static final int waitTotalTimeout;
public final synchronized boolean releaselock (Uid lockUid);
public final synchronized int setlock (Lock toSet);
public final synchronized int setlock (Lock toSet, int retry);
public final synchronized int setlock (Lock toSet, int retry, int sleepTime);
public void print (PrintStream strm);
public String type ();
public boolean save_state (OutputObjectState os, int ObjectType);
public boolean restore_state (InputObjectState os, int ObjectType);
protected LockManager ();
protected LockManager (int ot);
protected LockManager (int ot, int objectModel);
protected LockManager (Uid storeUid);
protected LockManager (Uid storeUid, int ot);
protected LockManager (Uid storeUid, int ot, int objectModel);
protected void terminate ();
};
Example B.2. Class StateManager
public class ObjectStatus
{
public static final int PASSIVE;
public static final int PASSIVE_NEW;
public static final int ACTIVE;
public static final int ACTIVE_NEW;
};
public class ObjectType
{
public static final int RECOVERABLE;
public static final int ANDPERSISTENT;
public static final int NEITHER;
};
public abstract class StateManager
{
public boolean restore_state (InputObjectState os, int ot);
public boolean save_state (OutputObjectState os, int ot);
public String type ();
public synchronized boolean activate ();
public synchronized boolean activate (String rootName);
public synchronized boolean deactivate ();
public synchronized boolean deactivate (String rootName);
public synchronized boolean deactivate (String rootName, boolean commit);
public synchronized int status ();
public final Uid get_uid ();
public void destroy ();
public void print (PrintStream strm);
protected void terminate ();
protected StateManager ();
protected StateManager (int ot);
protected StateManager (int ot, int objectModel);
protected StateManager (Uid objUid);
protected StateManager (Uid objUid, int ot);
protected StateManager (Uid objUid, int ot, int objectModel);
protected synchronized final void modified ();
};
Example B.3. Classes OutputObjectState and InputObjectState
class OutputObjectState extends OutputBuffer
{
public OutputObjectState (Uid newUid, String typeName);
public boolean notempty ();
public int size ();
public Uid stateUid ();
public String type ();
};
class InputObjectState extends ObjectState
{
public OutputObjectState (Uid newUid, String typeName, byte[] b);
public boolean notempty ();
public int size ();
public Uid stateUid ();
public String type ();
};
Example B.4. Classes OutputBuffer and InputBuffer
public class OutputBuffer
{
public OutputBuffer ();
public final synchronized boolean valid ();
public synchronized byte[] buffer();
public synchronized int length ();
/* pack operations for standard Java types */
public synchronized void packByte (byte b) throws IOException;
public synchronized void packBytes (byte[] b) throws IOException;
public synchronized void packBoolean (boolean b) throws IOException;
public synchronized void packChar (char c) throws IOException;
public synchronized void packShort (short s) throws IOException;
public synchronized void packInt (int i) throws IOException;
public synchronized void packLong (long l) throws IOException;
public synchronized void packFloat (float f) throws IOException;
public synchronized void packDouble (double d) throws IOException;
public synchronized void packString (String s) throws IOException;
};
public class InputBuffer
{
public InputBuffer ();
public final synchronized boolean valid ();
public synchronized byte[] buffer();
public synchronized int length ();
/* unpack operations for standard Java types */
public synchronized byte unpackByte () throws IOException;
public synchronized byte[] unpackBytes () throws IOException;
public synchronized boolean unpackBoolean () throws IOException;
public synchronized char unpackChar () throws IOException;
public synchronized short unpackShort () throws IOException;
public synchronized int unpackInt () throws IOException;
public synchronized long unpackLong () throws IOException;
public synchronized float unpackFloat () throws IOException;
public synchronized double unpackDouble () throws IOException;
public synchronized String unpackString () throws IOException;
};
Example B.5. Class Uid
public class Uid implements Cloneable
{
public Uid ();
public Uid (Uid copyFrom);
public Uid (String uidString);
public Uid (String uidString, boolean errorsOk);
public synchronized void pack (OutputBuffer packInto) throws IOException;
public synchronized void unpack (InputBuffer unpackFrom) throws IOException;
public void print (PrintStream strm);
public String toString ();
public Object clone () throws CloneNotSupportedException;
public synchronized void copy (Uid toCopy) throws UidException;
public boolean equals (Uid u);
public boolean notEquals (Uid u);
public boolean lessThan (Uid u);
public boolean greaterThan (Uid u);
public synchronized final boolean valid ();
public static synchronized Uid nullUid ();
};
Example B.6. Class AtomicAction
public class AtomicAction
{
public AtomicAction ();
public void begin () throws SystemException, SubtransactionsUnavailable,
NoTransaction;
public void commit (boolean report_heuristics) throws SystemException,
NoTransaction, HeuristicMixed,
HeuristicHazard,TransactionRolledBack;
public void rollback () throws SystemException, NoTransaction;
public Control control () throws SystemException, NoTransaction;
public Status get_status () throws SystemException;
/* Allow action commit to be supressed */
public void rollbackOnly () throws SystemException, NoTransaction;
public void registerResource (Resource r) throws SystemException, Inactive;
public void registerSubtransactionAwareResource (SubtransactionAwareResource sr)
throws SystemException, NotSubtransaction;
public void registerSynchronization (Synchronization s) throws SystemException,
Inactive;
};