Class ClassBodyEvaluator

Method Details

• setDefaultImports

  public void setDefaultImports(String[] optionalDefaultImports)

  Description copied from interface: IClassBodyEvaluator

  "Default imports" add to the system import "java.lang", i.e. the evaluator may refer to classes imported by default imports without having to explicitly declare IMPORT statements.

  Notice that JDK 5 "static imports" are also supported, as shown in the following example.

  Example:

       sc.setDefaultImports(new String[] {
           "java.util.Map",                          // Single type import
           "java.io.*",                              // Type-import-on-demand
           "static java.util.Collections.EMPTY_MAP", // Single static import
           "static java.util.Collections.*",         // Static-import-on-demand
       });

  Specified by:

  setDefaultImports in interface IClassBodyEvaluator

• setClassName

  public void setClassName(String className)

  Description copied from interface: IClassBodyEvaluator

  Set the name of the generated class. Defaults to IClassBodyEvaluator.DEFAULT_CLASS_NAME. In most cases, there is no need to set this name, because the generated class is loaded into its own ClassLoader where its name cannot collide with classes generated by other evaluators.

  One reason to use this function is to have a class name in a non-default package, which can be relevant when types and members with DEFAULT accessibility are accessed.

  Specified by:

  setClassName in interface IClassBodyEvaluator

• setExtendedClass

  public void setExtendedClass(Class optionalExtendedType)

  Description copied from interface: IClassBodyEvaluator

  Set a particular superclass that the generated class will extend. If null is passed, the generated class will extend Object.

  The common reason to set a base class for an evaluator is that the generated class can directly access the base superclass's (non-private) members.

  Specified by:

  setExtendedClass in interface IClassBodyEvaluator

• setExtendedType

  @Deprecated public void setExtendedType(Class optionalExtendedClass)

  Deprecated.

  Specified by:

  setExtendedType in interface IClassBodyEvaluator

• setImplementedInterfaces

  public void setImplementedInterfaces(Class[] implementedTypes)

  Description copied from interface: IClassBodyEvaluator

  Set a particular set of interfaces that the generated class will implement.

  Specified by:

  setImplementedInterfaces in interface IClassBodyEvaluator

• setImplementedTypes

  @Deprecated public void setImplementedTypes(Class[] implementedInterfaces)

  Deprecated.

  Specified by:

  setImplementedTypes in interface IClassBodyEvaluator

• cook

  public void cook(Scanner scanner) throws CompileException, IOException

  Description copied from class: SimpleCompiler

  Scans, parses and ompiles a given compilation unit from the given scanner. After completion, SimpleCompiler.getClassLoader() returns a ClassLoader that allows for access to the compiled classes.

  Overrides:

  cook in class SimpleCompiler

  Throws:

  CompileException

  IOException

• makeCompilationUnit

  protected final Java.CompilationUnit makeCompilationUnit(Parser optionalParser) throws CompileException, IOException

  Create a Java.CompilationUnit, set the default imports, and parse the import declarations.

  If the optionalParser is given, a sequence of IMPORT directives is parsed from it and added to the compilation unit.

  Throws:

  CompileException

  IOException

• addPackageMemberClassDeclaration

  protected Java.PackageMemberClassDeclaration addPackageMemberClassDeclaration(Location location, Java.CompilationUnit compilationUnit) throws CompileException

  To the given Java.CompilationUnit, add

  • A class declaration with the configured name, superclass and interfaces
  • A method declaration with the given return type, name, parameter names and values and thrown exceptions

  Returns:

  The created Java.ClassDeclaration object

  Throws:

  CompileException

• compileToClass

  protected final Class compileToClass(Java.CompilationUnit compilationUnit, String newClassName) throws CompileException

  Compile the given compilation unit, load all generated classes, and return the class with the given name.

  Parameters:

  compilationUnit -

  newClassName - The fully qualified class name

  Returns:

  The loaded class

  Throws:

  CompileException

• getClazz

  public Class getClazz()

  Description copied from interface: IClassBodyEvaluator

  Returns the loaded Class.

  This method must only be called after exactly one of the ICookable.cook(String, java.io.Reader) methods was called.

  Specified by:

  getClazz in interface IClassBodyEvaluator

• createInstance

  public Object createInstance(Reader reader) throws CompileException, IOException

  Description copied from interface: IClassBodyEvaluator

  Scans, parses and compiles a class body from the tokens delivered by the the given Reader, then creates and returns an instance of that class.

  Specified by:

  createInstance in interface IClassBodyEvaluator

  Parameters:

  reader - Source of class body tokens

  Returns:

  An object that extends the optionalExtendedType and implements the given implementedTypes

  Throws:

  CompileException

  IOException

• createFastClassBodyEvaluator

  public static Object createFastClassBodyEvaluator(Scanner scanner, Class optionalBaseType, ClassLoader optionalParentClassLoader) throws CompileException, IOException

  Use createInstance(Reader) instead:

   IClassBodyEvaluator cbe = CompilerFactoryFactory.getDefaultCompilerFactory().newClassBodyEvaluator();
   if (optionalBaseType != null) {
       if (optionalBaseType.isInterface()) {
           cbe.setImplementedInterfaces(new Class[] { optionalBaseType });
       } else {
           cbe.setExtendedClass(optionalBaseType);
       }
   }
   cbe.setParentClassLoader(optionalParentClassLoader);
   cbe.createInstance(reader);
   

  Throws:

  CompileException

  IOException

  See Also:

  • createInstance(Reader)

• createFastClassBodyEvaluator

  @Deprecated public static Object createFastClassBodyEvaluator(Scanner scanner, String className, Class optionalExtendedClass, Class[] implementedInterfaces, ClassLoader optionalParentClassLoader) throws CompileException, IOException

  Deprecated.

  Use createInstance(Reader) instead:

   IClassBodyEvaluator cbe = CompilerFactoryFactory.getDefaultCompilerFactory().newClassBodyEvaluator();
   cbe.setExtendedClass(optionalExtendedClass);
   cbe.setImplementedInterfaces(implementedInterfaces);
   cbe.setParentClassLoader(optionalParentClassLoader);
   cbe.createInstance(reader);
   

  Throws:

  CompileException

  IOException

  See Also:

  • createInstance(Reader)