Java Doc for BtreePage.java in  » Database-DBMS » h2database » org » h2 » index » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database DBMS » h2database » org.h2.index   Source Cross Reference   Class Diagram   Java Document (Java Doc)   org.h2.store.Record    org.h2.index.BtreePage All known Subclasses:   org.h2.index.BtreeNode,  org.h2.index.BtreeLeaf, BtreePage abstract public class BtreePage extends Record (Code) An abstract b-tree page. Field Summary final protected static  int BLOCKS_PER_PAGE      protected  BtreeIndex index      protected  ObjectArray pageData      protected  boolean root      Constructor Summary   BtreePage(BtreeIndex index)      Method Summary abstract  int add(Row row, Session session)      Add a row to the index. abstract  boolean findFirst(BtreeCursor cursor, SearchRow row, boolean bigger)      abstract  void first(BtreeCursor cursor)      public  int getByteCount(DataPage dummy)       SearchRow getData(int i)      abstract  SearchRow getFirst(Session session)      abstract  SearchRow getLast(Session session)      abstract  int getRealByteCount()       int getRowSize(DataPage dummy, SearchRow row)       int getSplitPoint()      public  boolean isEmpty()      public  boolean isPinned()      abstract  void next(BtreeCursor cursor, int i)      abstract  SearchRow remove(Session session, Row row)      Remove a row from the page.  void setRoot(boolean root)      abstract  BtreePage split(Session session, int splitPoint)      Field Detail BLOCKS_PER_PAGE final protected static int BLOCKS_PER_PAGE(Code) index protected BtreeIndex index(Code) pageData protected ObjectArray pageData(Code) root protected boolean root(Code) Constructor Detail BtreePage BtreePage(BtreeIndex index)(Code) Method Detail add abstract int add(Row row, Session session) throws SQLException(Code) Add a row to the index. Parameters:   row - the row Parameters:   session - the session the split point of this page, or 0 if no split is required findFirst abstract boolean findFirst(BtreeCursor cursor, SearchRow row, boolean bigger) throws SQLException(Code) first abstract void first(BtreeCursor cursor) throws SQLException(Code) getByteCount public int getByteCount(DataPage dummy) throws SQLException(Code) getData SearchRow getData(int i) throws SQLException(Code) getFirst abstract SearchRow getFirst(Session session) throws SQLException(Code) getLast abstract SearchRow getLast(Session session) throws SQLException(Code) getRealByteCount abstract int getRealByteCount() throws SQLException(Code) getRowSize int getRowSize(DataPage dummy, SearchRow row) throws SQLException(Code) getSplitPoint int getSplitPoint() throws SQLException(Code) isEmpty public boolean isEmpty()(Code) isPinned public boolean isPinned()(Code) next abstract void next(BtreeCursor cursor, int i) throws SQLException(Code) remove abstract SearchRow remove(Session session, Row row) throws SQLException(Code) Remove a row from the page. Parameters:   session - the session Parameters:   row - the row the new first row in the list; null if no change; the deleted rowif not empty setRoot void setRoot(boolean root)(Code) split abstract BtreePage split(Session session, int splitPoint) throws SQLException(Code) Methods inherited from org.h2.store.Record public boolean canRemove()(Code)(Java Doc) public void commit()(Code)(Java Doc) abstract public int getByteCount(DataPage dummy) throws SQLException(Code)(Java Doc) public boolean getDeleted()(Code)(Java Doc) public int getSessionId()(Code)(Java Doc) public int getStorageId()(Code)(Java Doc) public boolean isEmpty()(Code)(Java Doc) public boolean isLogWritten()(Code)(Java Doc) public void prepareWrite() throws SQLException(Code)(Java Doc) public void setDeleted(boolean deleted)(Code)(Java Doc) public void setLastLog(int log, int pos)(Code)(Java Doc) public void setLogWritten(int log, int pos)(Code)(Java Doc) public void setSessionId(int sessionId)(Code)(Java Doc) public void setStorageId(int storageId)(Code)(Java Doc) abstract public void write(DataPage buff) throws SQLException(Code)(Java Doc)