oracle.javatools.editor.language
Class LanguageModule

java.lang.Object
  oracle.javatools.editor.language.LanguageModule

public abstract class LanguageModule

extends java.lang.Object

The LanguageModule interface acts as a registration vehicle and factory for the services used for editing a particular language. It takes care of registering the file types supported by this language, and the styles (language features) used for rendering. It is also the factory for creating a LanguageSupport instance for this language.

LanguageModule implementations are automatically registered in the framework when a new instance of that implementation is instantiated. During this registration process, the styles for the module are initialized, and the supported file types registered. Because of this auto-registration, LanguageModule instances are intended to be singleton instances.

This class provides a number of predefined file type constants. These may be returned in getSupportedFileTypes(). If you wish your implementation to override one of the default ones in supporting a particular file type, simply return that file type in your implementation of getSupportedFileTypes().

Pre-defined LanguageModules are loaded using Class.forName() and instantiated so that the base editor does not have a direct dependency on various supports except for the default, built-in one for plain text. This allows clients to drop supports which they do not need.

See Also:

LanguageRegistry, LanguageSupport

Field Summary

static java.lang.String	FILETYPE_C The file suffix *.c.
static java.lang.String	FILETYPE_CPLUSPLUS The file suffix *.cplusplus.
static java.lang.String	FILETYPE_CPP The file suffix *.cpp.
static java.lang.String	FILETYPE_CPP2 The file suffix *.c++.
static java.lang.String	FILETYPE_CSS The file suffix *.css.
static java.lang.String	FILETYPE_DTD The file suffix *.dtd.
static java.lang.String	FILETYPE_H The file suffix *.h.
static java.lang.String	FILETYPE_HTM The file suffix *.htm.
static java.lang.String	FILETYPE_HTML The file suffix *.html.
static java.lang.String	FILETYPE_IDL The file suffix *.idl.
static java.lang.String	FILETYPE_JAVA The file suffix *.java.
static java.lang.String	FILETYPE_JS The file suffix *.js.
static java.lang.String	FILETYPE_JSP The file suffix *.jsp.
static java.lang.String	FILETYPE_LOG The file suffix *.log.
static java.lang.String	FILETYPE_PHP The file suffix *.php
static java.lang.String	FILETYPE_PHP3 The file suffix *.php3
static java.lang.String	FILETYPE_PHP4 The file suffix *.php4
static java.lang.String	FILETYPE_PLS The file suffix *.pls.
static java.lang.String	FILETYPE_PLSQL The file suffix *.plsql.
static java.lang.String	FILETYPE_PROPERTIES The file suffix *.properties.
static java.lang.String	FILETYPE_RTS The file suffix *.rts.
static java.lang.String	FILETYPE_SQL The file suffix *.sql.
static java.lang.String	FILETYPE_SQLJ The file suffix *.sqlj.
static java.lang.String	FILETYPE_TEXT The file suffix *.text.
static java.lang.String	FILETYPE_TXT The file suffix *.txt.
static java.lang.String	FILETYPE_XML The file suffix *.xml.
static java.lang.String	FILETYPE_XSL The file suffix *.xsl.

Constructor Summary

protected

LanguageModule() Construct a new LanguageModule.

Method Summary

static LanguageSupport	createDefaultSupport() Static factory routine to create a default LanguageSupport for editing plain text.
abstract LanguageSupport	createLanguageSupport() Creates a new LanguageSupport instance for editing this specific language.
static LanguageSupport	createSupportForFileType(java.lang.String fileName) Static factory routine to create a LanguageSupport for the given filename based on the currently registered LanguageModules.
abstract java.lang.String	getContentSample() Fetches a sample of the content that can be edited by this language module.
static LanguageModule	getDefaultModule() Static utility routine to fetch the default language module used for plain content.
static java.lang.String	getFileType(java.lang.String fileName) Retrieve the file type based on the given filename.
static StyleRegistry	getGlobalStyleRegistry() Convenience routine to fetch the global style registry.
static java.util.Iterator	getLanguageIterator() Fetch an Iterator for all the language modules.
static LanguageModule	getModuleForFileType(java.lang.String fileName) Utility routine to fetch the LanguageModule registered for the given filetype.
java.lang.String	getName() Fetches the name of this language module.
abstract java.lang.String	getPresentationName() Fetch the visible or presentation name of this language module.
abstract java.lang.String[]	getStyleNames() Fetches an array of style names for the BaseStyles specific to this language.
abstract java.lang.String[]	getSupportedFileTypes() Fetches an array of supported file suffixes.
protected void	initializeModule() Initialize the language module.
void	registerModule(LanguageModule module) Registers this language module with the framework.
static void	registerModuleForFileType(LanguageModule module, java.lang.String fileName) Utility routine to register the LanguageModule for the given file type.
abstract void	registerStyles(StyleRegistry registry) Register the styles used by the highlighter in this language.
java.lang.String	toString() Fetches the human-readable name of the module.

Methods inherited from class java.lang.Object

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

Field Detail

FILETYPE_TXT

public static final java.lang.String FILETYPE_TXT

The file suffix *.txt.

See Also:

Constant Field Values

FILETYPE_TEXT

public static final java.lang.String FILETYPE_TEXT

The file suffix *.text.

See Also:

Constant Field Values

FILETYPE_LOG

public static final java.lang.String FILETYPE_LOG

The file suffix *.log.

See Also:

Constant Field Values

FILETYPE_JAVA

public static final java.lang.String FILETYPE_JAVA

The file suffix *.java.

See Also:

Constant Field Values

FILETYPE_JSP

public static final java.lang.String FILETYPE_JSP

The file suffix *.jsp.

See Also:

Constant Field Values

FILETYPE_PHP

public static final java.lang.String FILETYPE_PHP

The file suffix *.php

See Also:

Constant Field Values

FILETYPE_PHP3

public static final java.lang.String FILETYPE_PHP3

The file suffix *.php3

See Also:

Constant Field Values

FILETYPE_PHP4

public static final java.lang.String FILETYPE_PHP4

The file suffix *.php4

See Also:

Constant Field Values

FILETYPE_HTML

public static final java.lang.String FILETYPE_HTML

The file suffix *.html.

See Also:

Constant Field Values

FILETYPE_HTM

public static final java.lang.String FILETYPE_HTM

The file suffix *.htm.

See Also:

Constant Field Values

FILETYPE_SQLJ

public static final java.lang.String FILETYPE_SQLJ

The file suffix *.sqlj.

See Also:

Constant Field Values

FILETYPE_SQL

public static final java.lang.String FILETYPE_SQL

The file suffix *.sql.

See Also:

Constant Field Values

FILETYPE_PLS

public static final java.lang.String FILETYPE_PLS

The file suffix *.pls.

See Also:

Constant Field Values

FILETYPE_PLSQL

public static final java.lang.String FILETYPE_PLSQL

The file suffix *.plsql.

See Also:

Constant Field Values

FILETYPE_PROPERTIES

public static final java.lang.String FILETYPE_PROPERTIES

The file suffix *.properties.

See Also:

Constant Field Values

FILETYPE_RTS

public static final java.lang.String FILETYPE_RTS

The file suffix *.rts.

See Also:

Constant Field Values

FILETYPE_XML

public static final java.lang.String FILETYPE_XML

The file suffix *.xml.

See Also:

Constant Field Values

FILETYPE_DTD

public static final java.lang.String FILETYPE_DTD

The file suffix *.dtd.

See Also:

Constant Field Values

FILETYPE_XSL

public static final java.lang.String FILETYPE_XSL

The file suffix *.xsl.

See Also:

Constant Field Values

FILETYPE_IDL

public static final java.lang.String FILETYPE_IDL

The file suffix *.idl.

See Also:

Constant Field Values

FILETYPE_C

public static final java.lang.String FILETYPE_C

The file suffix *.c.

See Also:

Constant Field Values

FILETYPE_CPP2

public static final java.lang.String FILETYPE_CPP2

The file suffix *.c++.

See Also:

Constant Field Values

FILETYPE_CPP

public static final java.lang.String FILETYPE_CPP

The file suffix *.cpp.

See Also:

Constant Field Values

FILETYPE_CPLUSPLUS

public static final java.lang.String FILETYPE_CPLUSPLUS

The file suffix *.cplusplus.

See Also:

Constant Field Values

FILETYPE_CSS

public static final java.lang.String FILETYPE_CSS

The file suffix *.css.

See Also:

Constant Field Values

FILETYPE_H

public static final java.lang.String FILETYPE_H

The file suffix *.h.

See Also:

Constant Field Values

FILETYPE_JS

public static final java.lang.String FILETYPE_JS

The file suffix *.js.

See Also:

Constant Field Values

Constructor Detail

LanguageModule

protected LanguageModule()

Construct a new LanguageModule. This will automatically register this language module class.

Method Detail

createDefaultSupport

public static LanguageSupport createDefaultSupport()

Static factory routine to create a default LanguageSupport for editing plain text.

Returns:

a default language support instance

getDefaultModule

public static LanguageModule getDefaultModule()

Static utility routine to fetch the default language module used for plain content.

Returns:

the default language module

createSupportForFileType

public static LanguageSupport createSupportForFileType(java.lang.String fileName)

Static factory routine to create a LanguageSupport for the given filename based on the currently registered LanguageModules. The file type is based on the trailing suffix of the filename.

Parameters:

fileName - the name of the file from which the file type is derived

Returns:

a new language support instance for the given file type

getModuleForFileType

public static LanguageModule getModuleForFileType(java.lang.String fileName)

Utility routine to fetch the LanguageModule registered for the given filetype. The file type is based on the trailing suffix of the filename.

Parameters:

fileName - the name of the file from which the file type is derived

Returns:

the language module registered to support this file type

registerModuleForFileType

public static void registerModuleForFileType(LanguageModule module,
                                             java.lang.String fileName)

Utility routine to register the LanguageModule for the given file type. The file type is based on the trailing suffix of the filename

Parameters:

module - the language module to register to support this file type

fileName - the name of the file from which the file type is derived

getFileType

public static java.lang.String getFileType(java.lang.String fileName)

Retrieve the file type based on the given filename. This is done by getting the trailing suffix without the dot "." character. If a dot is not found, it is just assumed that the file name is the suffix. Either way, it is converted to lowercase when returned to ensure that when we get or put from our map, that we can find the type correctly.

Parameters:

fileName - the file name to get the type for

Returns:

the file type found

getGlobalStyleRegistry

public static StyleRegistry getGlobalStyleRegistry()

Convenience routine to fetch the global style registry.

Returns:

the global style registry

registerModule

public void registerModule(LanguageModule module)

Registers this language module with the framework. This will instruct the module to register its styles, and will also register all of the file types that the module can support. If the module has been registered before, it will not be registered again.

Parameters:

module - the language module to register

getLanguageIterator

public static java.util.Iterator getLanguageIterator()

Fetch an Iterator for all the language modules. that have been registered.

Returns:

an iterator for all registered modules

initializeModule

protected void initializeModule()

Initialize the language module. Subclasses that have extra initialization to perform besides creating styles and registering file types may override this method.

getName

public java.lang.String getName()

Fetches the name of this language module. This may be used for registration or debugging purposes.

Returns:

name of this language module.

getPresentationName

public abstract java.lang.String getPresentationName()

Fetch the visible or presentation name of this language module. This is generally a translated name that can be used for UI purposes.

Returns:

the name of this module in human-readable (translated) form

toString

public java.lang.String toString()

Fetches the human-readable name of the module.

Returns:

the module name

getSupportedFileTypes

public abstract java.lang.String[] getSupportedFileTypes()

Fetches an array of supported file suffixes.

Returns:

a string array of the supported file suffixes.

getStyleNames

public abstract java.lang.String[] getStyleNames()

Fetches an array of style names for the BaseStyles specific to this language. This can be used for example, for a syntax highlighting options panel that displays styles by language category. Note that the internal names, not the presentation names of the styles should be returned here.

Returns:

a string array of the language style names

getContentSample

public abstract java.lang.String getContentSample()

Fetches a sample of the content that can be edited by this language module. This may be used for UI purposes, such as being displayed in the editor of the syntax highlighting options panel that shows that the language styles look like.

Returns:

a sample of the type of document that this module can edit

registerStyles

public abstract void registerStyles(StyleRegistry registry)

Register the styles used by the highlighter in this language.

Parameters:

registry - the StyleRegistry (for lookups of derived styles)

createLanguageSupport

public abstract LanguageSupport createLanguageSupport()

Creates a new LanguageSupport instance for editing this specific language.

Returns:

a new LanguageSupport instance