org.apache.openjpa.enhance
Class ApplicationIdTool

java.lang.Object
  org.apache.openjpa.enhance.ApplicationIdTool

public class ApplicationIdTool
extends Object

Generates a class appropriate for use as an application identity class.

Author:

Patrick Linskey, Abe White

Nested Class Summary

static class	ApplicationIdTool.Flags Run flags.
static interface	ApplicationIdTool.ObjectIdLoader Interface implemented by metadata factories that can load non-existant object id classes.

Field Summary

static String

TOKEN_DEFAULT

Constructor Summary

ApplicationIdTool(OpenJPAConfiguration conf, Class type)
Constructs a new ApplicationIdTool capable of generating an object id class for type.

ApplicationIdTool(OpenJPAConfiguration conf, Class type, ClassMetaData meta)
Constructs a new tool instance capable of generating an object id class for meta.

Method Summary

String	getCode() Return the code generated for the application id, or null if invalid class or the run() method has not been called.
CodeFormat	getCodeFormat() The code formatter for the generated Java code.
File	getDirectory() The directory to write source to.
boolean	getIgnoreErrors() Return false if this tool is configured to throw an exception on an attempt to generate an id class for a type that does not use application identity.
Set	getImportPackages() Returns the collection of packages that need to be imported.
ClassMetaData	getMetaData() Return metadata for the type we are generating an application id for.
String	getToken() The token to use to separate stringified primary key field values.
Class	getType() Return the type we are generating an application id for.
Writer	getWriter() The writer to write source to, or null to write to default file.
boolean	isInnerClass() Returns true if the application identity class should be an inner class.
static void	main(String[] args) Usage: java org.apache.openjpa.enhance.ApplicationIdTool [option]* <class name | .java file | .class file | .jdo file>+ Where the following options are recognized.
void	record() Writes the generated code to the proper file.
boolean	run() Generates the sourcecode for the application id class; returns false if the class is invalid.
static boolean	run(OpenJPAConfiguration conf, String[] args, ApplicationIdTool.Flags flags, ClassLoader loader) Run the tool.
static boolean	run(OpenJPAConfiguration conf, String[] args, Options opts) Run the application id tool with the given command-line and given configuration.
void	setCodeFormat(CodeFormat format) Set the code formatter for the generated Java code.
void	setDirectory(File dir) The directory to write source to.
void	setIgnoreErrors(boolean ignore) Set to false if this tool should throw an exception on an attempt to generate an id class for a type that does not use application identity.
void	setToken(String token) The token to use to separate stringified primary key field values.
void	setWriter(Writer writer) The writer to write source to, or null to write to default file.

Methods inherited from class java.lang.Object

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

Field Detail

TOKEN_DEFAULT

public static final String TOKEN_DEFAULT

See Also:

Constant Field Values

Constructor Detail

ApplicationIdTool

public ApplicationIdTool(OpenJPAConfiguration conf,
                         Class type)

Constructs a new ApplicationIdTool capable of generating an object id class for type.

ApplicationIdTool

public ApplicationIdTool(OpenJPAConfiguration conf,
                         Class type,
                         ClassMetaData meta)

Constructs a new tool instance capable of generating an object id class for meta.

Method Detail

getIgnoreErrors

public boolean getIgnoreErrors()

Return false if this tool is configured to throw an exception on an attempt to generate an id class for a type that does not use application identity.

setIgnoreErrors

public void setIgnoreErrors(boolean ignore)

Set to false if this tool should throw an exception on an attempt to generate an id class for a type that does not use application identity.

getCodeFormat

public CodeFormat getCodeFormat()

The code formatter for the generated Java code.

setCodeFormat

public void setCodeFormat(CodeFormat format)

Set the code formatter for the generated Java code.

getDirectory

public File getDirectory()

The directory to write source to. Defaults to the directory of the Java file for the set type. If the given directory does not match the package of the object id, the package structure will be created below the directory.

setDirectory

public void setDirectory(File dir)

The directory to write source to. Defaults to the directory of the Java file for the set type. If the given directory does not match the package of the object id, the package structure will be created below the directory.

getToken

public String getToken()

The token to use to separate stringified primary key field values.

setToken

public void setToken(String token)

The token to use to separate stringified primary key field values.

getWriter

public Writer getWriter()

The writer to write source to, or null to write to default file.

setWriter

public void setWriter(Writer writer)

The writer to write source to, or null to write to default file.

getType

public Class getType()

Return the type we are generating an application id for.

getMetaData

public ClassMetaData getMetaData()

Return metadata for the type we are generating an application id for.

getCode

public String getCode()

Return the code generated for the application id, or null if invalid class or the run() method has not been called.

isInnerClass

public boolean isInnerClass()

Returns true if the application identity class should be an inner class.

run

public boolean run()

Generates the sourcecode for the application id class; returns false if the class is invalid.

record

public void record()
            throws IOException

Writes the generated code to the proper file.

Throws:

IOException

getImportPackages

public Set getImportPackages()

Returns the collection of packages that need to be imported.

main

public static void main(String[] args)
                 throws IOException,
                        ClassNotFoundException

Usage: java org.apache.openjpa.enhance.ApplicationIdTool [option]* <class name | .java file | .class file | .jdo file>+ Where the following options are recognized.

• -properties/-p <properties file>: The path to a OpenJPA properties file containing information as outlined in Configuration; optional.
• -<property name> <property value>: All bean properties of the standard OpenJPA OpenJPAConfiguration can be set by using their names and supplying a value.
• -directory/-d <output directory>: Path to the base source directory. The package structure will be created beneath this directory if necessary. If not specified, the tool will try to locate the .java file in the CLASSPATH and output to the same directory; failing that, it will use the current directory as the base directory.
• -ignoreErrors/-i <true/t | false/f>: If false, an exception will be thrown if the tool encounters any class that does not use application identity or uses the identity class of its superclass; defaults to true.
• -token/-t <token>: The token to use to separate stingified primary key field values in the stringified oid.
• -name/-n <id class name>: The name of the identity class to generate. If this option is specified, you must only give a single class argument. If the class metadata names an object id class, this argument is ignored.
• -suffix/-s <id class suffix>: A string to suffix each persistent class with to create the identity class name. This is overridden by -name or by any identity class name specified in metadata.
• -codeFormat/-cf.<property name> < property value> : Arguments like this will be used to configure the bean properties of the internal CodeFormat.

Each additional argument can be either the full class name of the type to create an id class for, the path to the .java file for the type, the path to the .class file for the type, or the path to a .jdo file listing one or more types. If a .java file already exists for an application id, it will be backed up to a file named <orig file name>~.

Throws:

IOException

ClassNotFoundException

run

public static boolean run(OpenJPAConfiguration conf,
                          String[] args,
                          Options opts)
                   throws IOException,
                          ClassNotFoundException

Run the application id tool with the given command-line and given configuration. Returns false if invalid options were given.

Throws:

IOException

ClassNotFoundException

run

public static boolean run(OpenJPAConfiguration conf,
                          String[] args,
                          ApplicationIdTool.Flags flags,
                          ClassLoader loader)
                   throws IOException,
                          ClassNotFoundException

Run the tool. Returns false if invalid options were given.

Throws:

IOException

ClassNotFoundException