Java Doc for MergeCursor.java in  » Database-DBMS » Quadcap-Embeddable-Database » com » quadcap » sql » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database DBMS » Quadcap Embeddable Database » com.quadcap.sql   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    com.quadcap.sql.TupleImpl       com.quadcap.sql.CursorImpl          com.quadcap.sql.MergeCursor MergeCursor public class MergeCursor extends CursorImpl (Code) Cursor implementing the SQL UNION or INTERSECTION operations. This cursor shares some functionality with the GroupByCursor class, and factorization should be investigated. author:    Stan Bailes Field Summary  boolean all       BCursor bc       int duplicateCount       int op       LazyRow row       TempTableMerge tempTable      Constructor Summary public   MergeCursor(Session session, int op, boolean all, TempTableMerge tempTable)      Method Summary public  void afterLast()      public  void beforeFirst()      public  void checkCursor()      public  void close()      On close, we release the resources. public  void deleteRow()      public  String getName()      public  Row getRow()      public  long getRowId()      public  boolean isWritable(int col)      public  boolean next()       boolean nextExcept()       boolean nextIntersect()       boolean nextUnion()      Separate from 'nextUnionAll' because we can avoid fetching the data for this case.  boolean nextUnionAll()      public  void resolveColumns()      public  long size()      public  void updateRow(Row row)      Field Detail all boolean all(Code) bc BCursor bc(Code) duplicateCount int duplicateCount(Code) op int op(Code) row LazyRow row(Code) tempTable TempTableMerge tempTable(Code) Constructor Detail MergeCursor public MergeCursor(Session session, int op, boolean all, TempTableMerge tempTable) throws SQLException(Code) Method Detail afterLast public void afterLast() throws SQLException(Code) beforeFirst public void beforeFirst() throws SQLException(Code) checkCursor public void checkCursor() throws IOException(Code) close public void close() throws SQLException(Code) On close, we release the resources. deleteRow public void deleteRow() throws SQLException(Code) getName public String getName()(Code) getRow public Row getRow() throws SQLException(Code) getRowId public long getRowId()(Code) isWritable public boolean isWritable(int col)(Code) next public boolean next() throws SQLException(Code) nextExcept boolean nextExcept() throws SQLException, IOException(Code) nextIntersect boolean nextIntersect() throws SQLException, IOException(Code) nextUnion boolean nextUnion() throws SQLException, IOException(Code) Separate from 'nextUnionAll' because we can avoid fetching the data for this case. nextUnionAll boolean nextUnionAll() throws SQLException, IOException(Code) Fetch the data once when we fetch the counts, then return each row the required number of times resolveColumns public void resolveColumns() throws SQLException(Code) size public long size() throws SQLException(Code) updateRow public void updateRow(Row row) throws SQLException(Code) Fields inherited from com.quadcap.sql.CursorImpl protected Cursor outer(Code)(Java Doc) protected Session session(Code)(Java Doc) Methods inherited from com.quadcap.sql.CursorImpl public boolean absolute(int row) throws SQLException(Code)(Java Doc) abstract public void afterLast() throws SQLException(Code)(Java Doc) abstract public void beforeFirst() throws SQLException(Code)(Java Doc) abstract public void close() throws SQLException(Code)(Java Doc) abstract public void deleteRow() throws SQLException(Code)(Java Doc) static void dumpCursor(String label, Cursor c) throws SQLException(Code)(Java Doc) public void finalize() throws Throwable(Code)(Java Doc) public Column getColumn(String columnName) throws SQLException(Code)(Java Doc) public Cursor getOuterCursor()(Code)(Java Doc) abstract public Row getRow() throws SQLException(Code)(Java Doc) public long getRowId()(Code)(Java Doc) public Session getSession()(Code)(Java Doc) public Table getTable()(Code)(Java Doc) public void insertRow(Row row) throws SQLException(Code)(Java Doc) abstract public boolean isWritable(int column) throws SQLException(Code)(Java Doc) abstract public boolean next() throws SQLException(Code)(Java Doc) public boolean prev() throws SQLException(Code)(Java Doc) public void reset(Expression expr, Cursor outer) throws SQLException(Code)(Java Doc) public void setOuterCursor(Cursor c)(Code)(Java Doc) public String toString()(Code)(Java Doc) abstract public void updateRow(Row row) throws SQLException(Code)(Java Doc) Fields inherited from com.quadcap.sql.TupleImpl protected Vector columns(Code)(Java Doc) protected HashMap names(Code)(Java Doc) protected String qual(Code)(Java Doc) protected String qualifier(Code)(Java Doc) Methods inherited from com.quadcap.sql.TupleImpl public void addColumn(Column col) throws SQLException(Code)(Java Doc) public void addColumn(Column col, int pos) throws SQLException(Code)(Java Doc) public void addColumn(String name, Type type) throws SQLException(Code)(Java Doc) public void addColumns(Session session, Tuple t) throws SQLException(Code)(Java Doc) public void addColumns(Session session, Tuple t, boolean resolve) throws SQLException(Code)(Java Doc) public void deleteColumn(int col) throws SQLException, IOException(Code)(Java Doc) public Column getColumn(int i) throws SQLException(Code)(Java Doc) public Column getColumn(String name) throws SQLException(Code)(Java Doc) public int getColumnCount() throws SQLException(Code)(Java Doc) public int getColumnIndex(String name) throws SQLException(Code)(Java Doc) public String getName()(Code)(Java Doc) public int[] mapColumns(Vector names) throws SQLException(Code)(Java Doc) static int nextUnquotedPeriod(String s)(Code)(Java Doc) public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException(Code)(Java Doc) public void resolveColumns() throws SQLException(Code)(Java Doc) public void setName(String name)(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)