dvrun
Class rtList

java.lang.Object
  dvrun.rtList

public class rtList
extends java.lang.Object

Calls the list runtime via JNI. For the most part the methods correspond to the list_xxxx() functions in TRIMpl where xxxx is the method name. The exceptions (because of typing) are list_curr() and list_read(). They are now called currTYPE and readTYPE where currently TYPE can be Int or String.

Constructor Summary

rtList(rtDV rt)
Allocate and initialize.

Method Summary

void	close() Close the list.
java.lang.String	colnam(int column) Return column name.
int	cols() Return number of columns.
int	colwid(int column) Return column width.
int	currInt(int column) Return data from current item (row).
java.lang.Object	currObj(int column) Return data from current item (row).
java.lang.Object[]	currRow() Return a row of data from current item (row).
java.lang.String	currString(int column) Return data from current item (row).
void	dup() Duplicate the current item (row).
int	eos() Return End-Of-Scan status.
protected void	finalize()
void	mod(int action, java.lang.Object[] valueArray) Modify (insert/update/delete) current row.
void	modcol(int column, java.lang.Object value) Modify a column.
void	more(int maxRows, int resetFirst) Load more data.
int	next() Advance one position.
void	open(java.lang.String openString, int maxRows) Open a list.
int	pos() Return current position.
int	prev() Backup one position.
int	readInt(int column) Return data from current item (row) and advance.
java.lang.Object	readObj(int column) Return data from current item (row) and advance.
java.lang.Object[]	readRow() Return a row of data from current item (row) and advance.
java.lang.String	readString(int column) Return data from current item (row) and advance.
int	rows() Return number of rows.
void	seek(int row) Seek to a new position.
java.lang.String	toString() Returns a string with some basic list information.

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

rtList

public rtList(rtDV rt)
       throws rtException

Allocate and initialize.

Throws:

rtException

Method Detail

open

public void open(java.lang.String openString,
                 int maxRows)
          throws rtException

Open a list.

Throws:

rtException

close

public void close()

Close the list.

rows

public int rows()
         throws rtException

Return number of rows.

Throws:

rtException

cols

public int cols()
         throws rtException

Return number of columns.

Throws:

rtException

pos

public int pos()
        throws rtException

Return current position.

Throws:

rtException

eos

public int eos()
        throws rtException

Return End-Of-Scan status.

Throws:

rtException

next

public int next()
         throws rtException

Advance one position.

Throws:

rtException

prev

public int prev()
         throws rtException

Backup one position.

Throws:

rtException

colnam

public java.lang.String colnam(int column)
                        throws rtException

Return column name.

Throws:

rtException

colwid

public int colwid(int column)
           throws rtException

Return column width.

Throws:

rtException

currObj

public java.lang.Object currObj(int column)
                         throws rtException

Return data from current item (row).

Throws:

rtException

currInt

public int currInt(int column)
            throws rtException

Return data from current item (row).

Throws:

rtException

currString

public java.lang.String currString(int column)
                            throws rtException

Return data from current item (row).

Throws:

rtException

currRow

public java.lang.Object[] currRow()
                           throws rtException

Return a row of data from current item (row).

Throws:

rtException

readObj

public java.lang.Object readObj(int column)
                         throws rtException

Return data from current item (row) and advance.

Throws:

rtException

readInt

public int readInt(int column)
            throws rtException

Return data from current item (row) and advance.

Throws:

rtException

readString

public java.lang.String readString(int column)
                            throws rtException

Return data from current item (row) and advance.

Throws:

rtException

readRow

public java.lang.Object[] readRow()
                           throws rtException

Return a row of data from current item (row) and advance.

Throws:

rtException

more

public void more(int maxRows,
                 int resetFirst)
          throws rtException

Load more data.

Throws:

rtException

seek

public void seek(int row)
          throws rtException

Seek to a new position.

Throws:

rtException

mod

public void mod(int action,
                java.lang.Object[] valueArray)
         throws rtException

Modify (insert/update/delete) current row.

Throws:

rtException

modcol

public void modcol(int column,
                   java.lang.Object value)
            throws rtException

Modify a column.

Throws:

rtException

dup

public void dup()
         throws rtException

Duplicate the current item (row).

Throws:

rtException

toString

public java.lang.String toString()

Returns a string with some basic list information.

Overrides:

toString in class java.lang.Object

finalize

protected void finalize()

Overrides:

finalize in class java.lang.Object