Package hec.io.dbf

Class DBaseIVMemoUpdate

java.lang.Object

hec.io.dbf.AbstractDBaseUpdate

hec.io.dbf.DBaseIVMemoUpdate

All Implemented Interfaces:

DBaseUpdate

public class DBaseIVMemoUpdate
extends AbstractDBaseUpdate

This class updates a DBaseIV file that includes memo fields. This file can be identified by checking the first byte of a xBase class file and seeing if it equals 0x8B. This class will take a like of exiting field descriptors and a list of new field descriptors and add and remove as neccessary and rewrite a new DBaseIV w/ Memo file.

Since:

December 22, 2000

Field Summary

Fields inherited from class hec.io.dbf.AbstractDBaseUpdate

_fdList, _header

Constructor Summary

Constructors

Constructor	Description
DBaseIVMemoUpdate(File newFile, File oldFile, boolean[] columnsToRemove, boolean[] columnsToAdd, boolean[] columnsToResize, DBFFieldDescriptor[] newFdList)

Method Summary

Modifier and Type	Method	Description
boolean	runUpdate()	Runs the update which copies the files, adding and removing columns as it needs.

Methods inherited from class hec.io.dbf.AbstractDBaseUpdate

readHeader

Methods inherited from class java.lang.Object

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

Constructor Details

DBaseIVMemoUpdate

public DBaseIVMemoUpdate(File newFile,
 File oldFile,
 boolean[] columnsToRemove,
 boolean[] columnsToAdd,
 boolean[] columnsToResize,
 DBFFieldDescriptor[] newFdList)

Method Details

runUpdate

public boolean runUpdate()

Runs the update which copies the files, adding and removing columns as it needs. This closes the files when it is done

Specified by:

runUpdate in interface DBaseUpdate

Overrides:

runUpdate in class AbstractDBaseUpdate