Java Doc for SortBufferRowSource.java in  » Database-DBMS » db-derby-10.2 » org » apache » derby » impl » store » access » sort » 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.access.sort   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.derby.impl.store.access.sort.Scan       org.apache.derby.impl.store.access.sort.SortBufferRowSource SortBufferRowSource public class SortBufferRowSource extends Scan implements ScanControllerRowSource(Code) Wrapping the output of a SortBuffer in a RowSource for the benefit of the createAndLoadConglomerate and loadConglomerate interface. Scan implements ScanController, this class just implements the RowSource interface. Field Summary  SortBuffer sortBuffer      protected  TransactionManager tran      The TransactionManager that opened this scan. Constructor Summary   SortBufferRowSource(SortBuffer sortBuffer, TransactionManager tran, SortObserver sortObserver, boolean writingToDisk, int maxFreeListSize)      Method Summary public  void close()      public  boolean closeForEndTransaction(boolean closeHeldScan)      public  void closeRowSource()      public  void fetch(DataValueDescriptor[] result)      Fetch the row at the current position of the Scan. final public  boolean fetchNext(DataValueDescriptor[] row)      public  void fetchWithoutQualify(DataValueDescriptor[] result)      Fetch the row at the current position of the Scan and does not apply the qualifiers. This method will always throw an exception. public  DataValueDescriptor[] getNextRowFromRowSource()      public  FormatableBitSet getValidColumns()      public  boolean needsRowLocation()      public  boolean needsToClone()      public  boolean next()      public  void rowLocation(RowLocation rl)      Field Detail sortBuffer SortBuffer sortBuffer(Code) The Sort buffer where rows come from tran protected TransactionManager tran(Code) The TransactionManager that opened this scan. Constructor Detail SortBufferRowSource SortBufferRowSource(SortBuffer sortBuffer, TransactionManager tran, SortObserver sortObserver, boolean writingToDisk, int maxFreeListSize)(Code) Method Detail close public void close()(Code) Close the scan closeForEndTransaction public boolean closeForEndTransaction(boolean closeHeldScan)(Code) Close the scan closeRowSource public void closeRowSource()(Code) Close the rowSource fetch public void fetch(DataValueDescriptor[] result) throws StandardException(Code) Fetch the row at the current position of the Scan. See Also:   ScanController.fetch fetchNext final public boolean fetchNext(DataValueDescriptor[] row) throws StandardException(Code) fetchWithoutQualify public void fetchWithoutQualify(DataValueDescriptor[] result) throws StandardException(Code) Fetch the row at the current position of the Scan and does not apply the qualifiers. This method will always throw an exception. (SQLState.SORT_IMPROPER_SCAN_METHOD) See Also:   ScanController.fetchWithoutQualify getNextRowFromRowSource public DataValueDescriptor[] getNextRowFromRowSource()(Code) getValidColumns public FormatableBitSet getValidColumns()(Code) All columns are always set from a sorter needsRowLocation public boolean needsRowLocation()(Code) needsToClone public boolean needsToClone()(Code) See Also:   RowSource.needsToClone next public boolean next() throws StandardException(Code) rowLocation public void rowLocation(RowLocation rl)(Code) Methods inherited from org.apache.derby.impl.store.access.sort.Scan public boolean delete() throws StandardException(Code)(Java Doc) public void didNotQualify() throws StandardException(Code)(Java Doc) public boolean doesCurrentPositionQualify() throws StandardException(Code)(Java Doc) public void fetchLocation(RowLocation templateLocation) throws StandardException(Code)(Java Doc) public int fetchNextGroup(DataValueDescriptor[][] row_array, RowLocation[] rowloc_array) throws StandardException(Code)(Java Doc) public int fetchNextGroup(DataValueDescriptor[][] row_array, RowLocation[] old_rowloc_array, RowLocation[] new_rowloc_array) throws StandardException(Code)(Java Doc) public void fetchSet(long max_rowcnt, int[] key_column_numbers, BackingStoreHashtable hash_table) throws StandardException(Code)(Java Doc) public Properties getAllScanInfo(Properties prop) throws StandardException(Code)(Java Doc) public long getEstimatedRowCount() throws StandardException(Code)(Java Doc) public ScanInfo getScanInfo() throws StandardException(Code)(Java Doc) public boolean isCurrentPositionDeleted() throws StandardException(Code)(Java Doc) public boolean isKeyed()(Code)(Java Doc) public boolean isTableLocked()(Code)(Java Doc) public RowLocation newRowLocationTemplate() throws StandardException(Code)(Java Doc) public boolean positionAtRowLocation(RowLocation rl) throws StandardException(Code)(Java Doc) public void reopenScan(DataValueDescriptor[] startKeyValue, int startSearchOperator, Qualifier qualifier, DataValueDescriptor[] stopKeyValue, int stopSearchOperator) throws StandardException(Code)(Java Doc) public void reopenScanByRowLocation(RowLocation startRowLocation, Qualifier qualifier) throws StandardException(Code)(Java Doc) public boolean replace(DataValueDescriptor[] val, FormatableBitSet validColumns) throws StandardException(Code)(Java Doc) public void savePosition(Conglomerate conglom, Page page) throws StandardException(Code)(Java Doc) public void setEstimatedRowCount(long count) throws StandardException(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)