org.basex.core
Class Session

java.lang.Object
  org.basex.core.Session

Direct Known Subclasses:

ClientSession, LocalSession

public abstract class Session
extends Object

This class allows a generic process execution. It is implemented both by the local as well as the client/server model.

Author:

Workgroup DBIS, University of Konstanz 2005-10, ISC License, Christian Gruen

Constructor Summary

Session()

Method Summary

abstract void	close() Closes the session.
boolean	execute(Proc pr) Executes a process.
abstract boolean	execute(Proc pr, OutputStream out) Executes a process and prints the result to the specified stream.
boolean	execute(String pr) Executes a command.
abstract boolean	execute(String cmd, OutputStream out) Executes a command and prints the result to the specified stream.
abstract String	info() Returns process info.

Methods inherited from class java.lang.Object

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

Constructor Detail

Session

public Session()

Method Detail

execute

public abstract boolean execute(String cmd,
                                OutputStream out)
                         throws IOException

Executes a command and prints the result to the specified stream.

Parameters:

cmd - command to be executed

out - output stream

Returns:

success of operation

Throws:

IOException - I/O exception

execute

public abstract boolean execute(Proc pr,
                                OutputStream out)
                         throws IOException

Executes a process and prints the result to the specified stream.

Parameters:

pr - process to be executed

out - output stream

Returns:

success of operation

Throws:

IOException - I/O exception

execute

public final boolean execute(Proc pr)
                      throws IOException

Executes a process. execute(Proc, OutputStream) should be called if textual results are expected.

Parameters:

pr - process to be executed

Returns:

success of operation

Throws:

IOException - I/O exception

execute

public final boolean execute(String pr)
                      throws IOException

Executes a command. execute(String, OutputStream) should be called if textual results are expected.

Parameters:

pr - process to be executed

Returns:

success of operation

Throws:

IOException - I/O exception

info

public abstract String info()

Returns process info.

Returns:

process info

close

public abstract void close()
                    throws IOException

Closes the session.

Throws:

IOException - I/O exception