Java Doc for UpdateFieldOperation.java in  » Database-DBMS » db-derby-10.2 » org » apache » derby » impl » store » raw » data » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database DBMS » db derby 10.2 » org.apache.derby.impl.store.raw.data   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.derby.impl.store.raw.data.PageBasicOperation       org.apache.derby.impl.store.raw.data.LogicalPageOperation          org.apache.derby.impl.store.raw.data.UpdateFieldOperation UpdateFieldOperation final public class UpdateFieldOperation extends LogicalPageOperation (Code) Represents the update of a particular field of a row on a page. Field Summary protected  int doMeSlot      protected  int fieldId      protected transient  ByteArray preparedLog      Constructor Summary public   UpdateFieldOperation(RawTransaction t, BasePage page, int slot, int recordId, int fieldId, Object column, LogicalUndo undo)      public   UpdateFieldOperation()      Method Summary public  void doMe(Transaction xact, LogInstant instant, LimitObjectInput in)      Change the value of a field. public  ByteArray getPreparedLog()      public  int getTypeFormatId()      Return my format identifier. public  void readExternal(ObjectInput in)      public  void restoreLoggedRow(Object[] row, LimitObjectInput in)      Restore the row stored in the optional data of the log record. public  void restoreMe(Transaction xact, BasePage undoPage, LogInstant CLRInstant, LimitObjectInput in)      public  String toString()      DEBUG: Print self. public  void undoMe(Transaction xact, BasePage undoPage, int undoRecordId, LogInstant CLRInstant, LimitObjectInput in)      Restore field to its old value. public  void writeExternal(ObjectOutput out)      Field Detail doMeSlot protected int doMeSlot(Code) fieldId protected int fieldId(Code) preparedLog protected transient ByteArray preparedLog(Code) Constructor Detail UpdateFieldOperation public UpdateFieldOperation(RawTransaction t, BasePage page, int slot, int recordId, int fieldId, Object column, LogicalUndo undo) throws StandardException(Code) UpdateFieldOperation public UpdateFieldOperation()(Code) Method Detail doMe public void doMe(Transaction xact, LogInstant instant, LimitObjectInput in) throws StandardException, IOException(Code) Change the value of a field. exception:   IOException - Can be thrown by any of the methods of ObjectInput. exception:   StandardException - Standard Cloudscape policy. See Also:   org.apache.derby.iapi.store.raw.Loggable.doMe getPreparedLog public ByteArray getPreparedLog()(Code) getTypeFormatId public int getTypeFormatId()(Code) Return my format identifier. readExternal public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException(Code) Read this in exception:   IOException - error reading from log stream exception:   ClassNotFoundException - log stream corrupted restoreLoggedRow public void restoreLoggedRow(Object[] row, LimitObjectInput in) throws StandardException, IOException(Code) Restore the row stored in the optional data of the log record. exception:   IOException - error reading from log stream exception:   StandardException - Standard Cloudscape error policy restoreMe public void restoreMe(Transaction xact, BasePage undoPage, LogInstant CLRInstant, LimitObjectInput in) throws StandardException, IOException(Code) restore the before image of the page exception:   StandardException - Standard Cloudscape Error Policy exception:   IOException - problem reading the complete log record from theinput stream toString public String toString()(Code) DEBUG: Print self. undoMe public void undoMe(Transaction xact, BasePage undoPage, int undoRecordId, LogInstant CLRInstant, LimitObjectInput in) throws StandardException, IOException(Code) Restore field to its old value. exception:   IOException - Can be thrown by any of the methods of ObjectInput. exception:   StandardException - Standard Cloudscape policy. See Also:   LogicalPageOperation.undoMe writeExternal public void writeExternal(ObjectOutput out) throws IOException(Code) Fields inherited from org.apache.derby.impl.store.raw.data.LogicalPageOperation protected int recordId(Code)(Java Doc) protected LogicalUndo undo(Code)(Java Doc) Methods inherited from org.apache.derby.impl.store.raw.data.LogicalPageOperation public Compensation generateUndo(Transaction xact, LimitObjectInput in) throws StandardException, IOException(Code)(Java Doc) public ContainerHandle getContainer()(Code)(Java Doc) public RecordHandle getRecordHandle()(Code)(Java Doc) public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException(Code)(Java Doc) public void reclaimPrepareLocks(Transaction t, LockingPolicy locking_policy) throws StandardException(Code)(Java Doc) public void resetRecordHandle(RecordHandle rh)(Code)(Java Doc) abstract public void undoMe(Transaction xact, BasePage undoPage, int undoRecordId, LogInstant CLRinstant, LimitObjectInput in) throws StandardException, IOException(Code)(Java Doc) public void writeExternal(ObjectOutput out) throws IOException(Code)(Java Doc) Fields inherited from org.apache.derby.impl.store.raw.data.PageBasicOperation protected transient RawContainerHandle containerHdl(Code)(Java Doc) protected transient boolean foundHere(Code)(Java Doc) protected transient BasePage page(Code)(Java Doc) Methods inherited from org.apache.derby.impl.store.raw.data.PageBasicOperation final public BasePage findpage(Transaction xact) throws StandardException(Code)(Java Doc) final public Page getPage()(Code)(Java Doc) protected BasePage getPageForRedoRecovery(Transaction xact) throws StandardException(Code)(Java Doc) final protected PageKey getPageId()(Code)(Java Doc) final public long getPageVersion()(Code)(Java Doc) public ByteArray getPreparedLog() throws StandardException(Code)(Java Doc) public int group()(Code)(Java Doc) final public boolean needsRedo(Transaction xact) throws StandardException(Code)(Java Doc) public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException(Code)(Java Doc) public void reclaimPrepareLocks(Transaction t, LockingPolicy locking_policy) throws StandardException(Code)(Java Doc) public void releaseResource(Transaction xact)(Code)(Java Doc) final protected void resetPageNumber(long pageNumber)(Code)(Java Doc) abstract public void restoreMe(Transaction xact, BasePage undoPage, LogInstant CLRinstant, LimitObjectInput in) throws StandardException, IOException(Code)(Java Doc) public String toString()(Code)(Java Doc) public void writeExternal(ObjectOutput out) throws IOException(Code)(Java Doc) 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)