org.h2.util

Class Tool

java.lang.Object

org.h2.util.Tool

Direct Known Subclasses:

Backup, ChangeFileEncryption, Console, ConvertTraceFile, CreateCluster, DeleteDbFiles, Recover, Restore, RunScript, Script, Server, Shell

public abstract class Tool
extends Object

Command line tools implement the tool interface so that they can be used in the H2 Console.

Field Summary

Fields

Modifier and Type	Field and Description
protected PrintStream	out The output stream where this tool writes to.

Constructor Summary

Constructors

Constructor and Description
Tool()

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	isOption(String arg, String option) Check if the argument matches the option.
protected void	printNoDatabaseFilesFound(String dir, String db) Print to the output stream that no database files have been found.
abstract void	runTool(String... args) Run the tool with the given output stream and arguments.
void	setOut(PrintStream out) Sets the standard output stream.
protected void	showUsage() Print the usage of the tool.
protected SQLException	throwUnsupportedOption(String option) Throw a SQLException saying this command line option is not supported.

Methods inherited from class java.lang.Object

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

Field Detail

out

protected PrintStream out

The output stream where this tool writes to.

Constructor Detail

Tool

public Tool()

Method Detail

setOut

public void setOut(PrintStream out)

Sets the standard output stream.

Parameters:

out - the new standard output stream

runTool

public abstract void runTool(String... args)
                      throws SQLException

Run the tool with the given output stream and arguments.

Parameters:

args - the argument list

Throws:

SQLException

throwUnsupportedOption

protected SQLException throwUnsupportedOption(String option)
                                       throws SQLException

Throw a SQLException saying this command line option is not supported.

Parameters:

option - the unsupported option

Returns:

this method never returns normally

Throws:

SQLException

printNoDatabaseFilesFound

protected void printNoDatabaseFilesFound(String dir,
                             String db)

Print to the output stream that no database files have been found.

Parameters:

dir - the directory or null

db - the database name or null

showUsage

protected void showUsage()

Print the usage of the tool. This method reads the description from the resource file.

isOption

public static boolean isOption(String arg,
               String option)

Check if the argument matches the option. If the argument starts with this option, but doesn't match, then an exception is thrown.

Parameters:

arg - the argument

option - the command line option

Returns:

true if it matches