Class Javah
java.lang.Object
org.apache.tools.ant.ProjectComponent
org.apache.tools.ant.Task
org.apache.tools.ant.taskdefs.optional.Javah
- All Implemented Interfaces:
- Cloneable
Generates JNI header files using javah.
 This task can take the following arguments:
 
- classname - the fully-qualified name of a class
- outputFile - Concatenates the resulting header or source files for all the classes listed into this file
- destdir - Sets the directory where javah saves the header files or the stub files
- classpath
- bootclasspath
- force - Specifies that output files should always be written (JDK1.2 only)
- old - Specifies that old JDK1.0-style header files should be generated (otherwise output file contain JNI-style native method function prototypes) (JDK1.2 only)
- stubs - generate C declarations from the Java object file (used with old)
- verbose - causes javah to print a message to stdout concerning the status of the generated files
- extdirs - Override location of installed extensions
<class name="xxx"> elements within the task.
 When this task executes, it will generate C header and source files that are needed to implement native methods.
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Nested Class SummaryNested ClassesModifier and TypeClassDescriptionclassA class corresponding the the nested "class" element.
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Field SummaryFields inherited from class org.apache.tools.ant.ProjectComponentdescription, location, project
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Constructor SummaryConstructors
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Method SummaryModifier and TypeMethodDescriptionvoidadd(JavahAdapter adapter) Set the adapter explicitly.voidaddFileSet(FileSet fs) Add a fileset.Adds an implementation specific command-line argument.Adds path to bootstrap class files.Adds class to process.Path to use for classpath.The classpath to use when loading the javah implementation if it is not a built-in one.voidexecute()Execute the taskThe bootclasspath to use.String[]Names of the classes to process.The classpath to use.String[]Returns the (implementation specific) settings given as nested arg elements.The destination directory, if any.booleangetForce()Whether output files should always be written.booleangetOld()Whether old JDK1.0-style header files should be generated.The destination file, if any.booleangetStubs()Whether C declarations from the Java object file should be generated.booleanWhether verbose output should get generated.voidLogs the compilation parameters, adds the files to compile and logs the "niceSourceList"protected voidLogs the compilation parameters, adds the files to compile and logs the "niceSourceList"voidsetBootclasspath(Path src) location of bootstrap class files.voidTo the bootstrap path, this adds a reference to a classpath defined elsewhere.voidthe fully-qualified name of the class (or classes, separated by commas).voidsetClasspath(Path src) the classpath to use.voidAdds a reference to a classpath defined elsewhere.voidsetDestdir(File destDir) Set the destination directory into which the Java source files should be compiled.voidsetForce(boolean force) If true, output files should always be written (JDK1.2 only).voidsetImplementation(String impl) Choose the implementation for this particular task.voidsetOld(boolean old) If true, specifies that old JDK1.0-style header files should be generated.voidsetOutputFile(File outputFile) Concatenates the resulting header or source files for all the classes listed into this file.voidsetStubs(boolean stubs) If true, generate C declarations from the Java object file (used with old).voidsetVerbose(boolean verbose) If true, causes Javah to print a message concerning the status of the generated files.Methods inherited from class org.apache.tools.ant.TaskbindToOwner, getOwningTarget, getRuntimeConfigurableWrapper, getTaskName, getTaskType, getWrapper, handleErrorFlush, handleErrorOutput, handleFlush, handleInput, handleOutput, init, isInvalid, log, log, log, log, maybeConfigure, perform, reconfigure, setOwningTarget, setRuntimeConfigurableWrapper, setTaskName, setTaskTypeMethods inherited from class org.apache.tools.ant.ProjectComponentclone, getDescription, getLocation, getProject, setDescription, setLocation, setProject
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Constructor Details- 
Javahpublic Javah()No arg constructor.
 
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Method Details- 
setClassthe fully-qualified name of the class (or classes, separated by commas).- Parameters:
- cls- the classname (or classnames).
 
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createClassAdds class to process.- Returns:
- a ClassArgumentto be configured.
 
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addFileSet
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getClassesNames of the classes to process.- Returns:
- the array of classes.
- Since:
- Ant 1.6.3
 
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setDestdirSet the destination directory into which the Java source files should be compiled.- Parameters:
- destDir- the destination directory.
 
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getDestdirThe destination directory, if any.- Returns:
- the destination directory.
- Since:
- Ant 1.6.3
 
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setClasspath
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createClasspath
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setClasspathRefAdds a reference to a classpath defined elsewhere.- Parameters:
- r- a reference to a classpath.
- To do:
- this needs to be documented in the HTML docs.
 
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getClasspath
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setBootclasspathlocation of bootstrap class files.- Parameters:
- src- the bootstrap classpath.
 
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createBootclasspathAdds path to bootstrap class files.- Returns:
- a path to be configured.
 
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setBootClasspathRefTo the bootstrap path, this adds a reference to a classpath defined elsewhere.- Parameters:
- r- a reference to a classpath
- To do:
- this needs to be documented in the HTML.
 
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getBootclasspathThe bootclasspath to use.- Returns:
- the bootclass path.
- Since:
- Ant 1.6.3
 
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setOutputFileConcatenates the resulting header or source files for all the classes listed into this file.- Parameters:
- outputFile- the output file.
 
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getOutputfileThe destination file, if any.- Returns:
- the destination file.
- Since:
- Ant 1.6.3
 
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setForcepublic void setForce(boolean force) If true, output files should always be written (JDK1.2 only).- Parameters:
- force- the value to use.
 
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getForcepublic boolean getForce()Whether output files should always be written.- Returns:
- the force attribute.
- Since:
- Ant 1.6.3
 
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setOldpublic void setOld(boolean old) If true, specifies that old JDK1.0-style header files should be generated. (otherwise output file contain JNI-style native method function prototypes) (JDK1.2 only).- Parameters:
- old- if true use old 1.0 style header files.
 
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getOldpublic boolean getOld()Whether old JDK1.0-style header files should be generated.- Returns:
- the old attribute.
- Since:
- Ant 1.6.3
 
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setStubspublic void setStubs(boolean stubs) If true, generate C declarations from the Java object file (used with old).- Parameters:
- stubs- if true, generated C declarations.
 
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getStubspublic boolean getStubs()Whether C declarations from the Java object file should be generated.- Returns:
- the stubs attribute.
- Since:
- Ant 1.6.3
 
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setVerbosepublic void setVerbose(boolean verbose) If true, causes Javah to print a message concerning the status of the generated files.- Parameters:
- verbose- if true, do verbose printing.
 
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getVerbosepublic boolean getVerbose()Whether verbose output should get generated.- Returns:
- the verbose attribute.
- Since:
- Ant 1.6.3
 
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setImplementationChoose the implementation for this particular task.- Parameters:
- impl- the name of the implementation.
- Since:
- Ant 1.6.3
 
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createArgAdds an implementation specific command-line argument.- Returns:
- a ImplementationSpecificArgument to be configured.
- Since:
- Ant 1.6.3
 
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getCurrentArgsReturns the (implementation specific) settings given as nested arg elements.- Returns:
- the arguments.
- Since:
- Ant 1.6.3
 
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createImplementationClasspathThe classpath to use when loading the javah implementation if it is not a built-in one.- Returns:
- Path
- Since:
- Ant 1.8.0
 
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addSet the adapter explicitly.- Parameters:
- adapter- JavahAdapter
- Since:
- Ant 1.8.0
 
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executeExecute the task- Overrides:
- executein class- Task
- Throws:
- BuildException- is there is a problem in the task execution.
 
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logAndAddFilesLogs the compilation parameters, adds the files to compile and logs the "niceSourceList"- Parameters:
- cmd- the command line.
 
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logAndAddFilesToCompileLogs the compilation parameters, adds the files to compile and logs the "niceSourceList"- Parameters:
- cmd- the command line to add parameters to.
 
 
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