Win a copy of Testing JavaScript Applications this week in the HTML Pages with CSS and JavaScript forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Bear Bibeault
  • Ron McLeod
  • Jeanne Boyarsky
  • Paul Clapham
Sheriffs:
  • Tim Cooke
  • Liutauras Vilda
  • Junilu Lacar
Saloon Keepers:
  • Tim Moores
  • Stephan van Hulst
  • Tim Holloway
  • fred rosenberger
  • salvin francis
Bartenders:
  • Piet Souris
  • Frits Walraven
  • Carey Brown

DBAccess.java

 
Greenhorn
Posts: 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I want to make DBAccess.java file..

But I saved DBAccess.java file then Errors happend..

(Because public interface must have each file... )

(example : interface DBAccess ---> DBAccess.java )

What shoud I do?

In advance .. thanks...

*************************************************************************

package suncertify.db;
public interface DBAccess
{

// Reads a record from the file. Returns an array where each
// element is a record value.
public String [] readRecord(long recNo) throws RecordNotFoundException;

(error happened : RecordNotFoundException cannot be resolved to a type )

// Modifies the fields of a record. The new value for field n
// appears in data[n]. Throws SecurityException
// if the record is locked with a cookie other than lockCookie.
public void updateRecord(long recNo, String[] data, long lockCookie)throws RecordNotFoundException, SecurityException;

(error happend : RecordNotFoundException cannot be resolved to a type)

// Deletes a record, making the record number and associated disk
// storage available for reuse.
// Throws SecurityException if the record is locked with a cookie
// other than lockCookie.
public void deleteRecord(long recNo, long lockCookie) throws RecordNotFoundException, SecurityException;

(error happend : RecordNotFoundException cannot be resolved to a type)

// Returns an array of record numbers that match the specified
// criteria. Field n in the database file is described by
// criteria[n]. A null value in criteria[n] matches any field
// value. A non-null value in criteria[n] matches any field
// value that begins with criteria[n]. (For example, "Fred"
// matches "Fred" or "Freddy".)
public long[] findByCriteria(String[] criteria);

// Creates a new record in the database (possibly reusing a
// deleted entry). Inserts the given data, and returns the record
// number of the new record.
public long createRecord(String [] data)throws DuplicateKeyException;

(error happened : DuplicateKeyException cannot be resolved to a type )

// Locks a record so that it can only be updated or deleted by this client.
// Returned value is a cookie that must be used when the record is unlocked,
// updated, or deleted. If the specified record is already locked by a different
// client, the current thread gives up the CPU and consumes no CPU cycles until
// the record is unlocked.
public long lockRecord(long recNo) throws RecordNotFoundException;

(error happened : RecordNotFoundException cannot be resolved to a type )

// Releases the lock on a record. Cookie must be the cookie
// returned when the record was locked; otherwise throws SecurityException.
public void unlock(long recNo, long cookie) throws SecurityException;
}


*********************************************************
 
Ranch Hand
Posts: 387
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
hi Kim,

just create a RecordNotFoundException and import it.

Herman
 
With a little knowledge, a cast iron skillet is non-stick and lasts a lifetime.
    Bookmark Topic Watch Topic
  • New Topic