File	Doc	Category	Size	Date	Package
Repository.java	API Doc	Java SE 5 API	9503	Fri Aug 26 14:55:16 BST 2005	com.sun.org.apache.bcel.internal

Repository

• java.lang.Object

Fields Summary
private static ClassPath	class_path
private static HashMap	classes
private static JavaClass	OBJECT

Constructors Summary

Methods Summary
public static com.sun.org.apache.bcel.internal.classfile.JavaClass	addClass(com.sun.org.apache.bcel.internal.classfile.JavaClass clazz) Add clazz to repository if there isn't an equally named class already in there. return old entry in repository String name = clazz.getClassName(); JavaClass cl = (JavaClass)classes.get(name); if(cl == null) classes.put(name, cl = clazz); return cl;
public static void	clearCache() Clear the repository. classes = new HashMap(); OBJECT = lookupClass("java.lang.Object"); if(OBJECT == null) System.err.println("Warning: java.lang.Object not found on CLASSPATH!"); else classes.put("java.lang.Object", OBJECT);
public static com.sun.org.apache.bcel.internal.classfile.JavaClass[]	getInterfaces(com.sun.org.apache.bcel.internal.classfile.JavaClass clazz) return all interfaces implemented by class and its super classes and the interfaces that those interfaces extend, and so on ClassVector vec = new ClassVector(); ClassQueue queue = new ClassQueue(); queue.enqueue(clazz); while(!queue.empty()) { clazz = queue.dequeue(); String s = clazz.getSuperclassName(); String[] interfaces = clazz.getInterfaceNames(); if(clazz.isInterface()) vec.addElement(clazz); else if(!s.equals("java.lang.Object")) queue.enqueue(lookupClass(s)); for(int i=0; i < interfaces.length; i++) queue.enqueue(lookupClass(interfaces[i])); } return vec.toArray();
public static com.sun.org.apache.bcel.internal.classfile.JavaClass[]	getInterfaces(java.lang.String class_name) return all interfaces implemented by class and its super classes and the interfaces that extend those interfaces, and so on return getInterfaces(lookupClass(class_name));
private static final com.sun.org.apache.bcel.internal.classfile.JavaClass	getSuperClass(com.sun.org.apache.bcel.internal.classfile.JavaClass clazz) if(clazz == OBJECT) return null; return lookupClass(clazz.getSuperclassName());
public static com.sun.org.apache.bcel.internal.classfile.JavaClass[]	getSuperClasses(com.sun.org.apache.bcel.internal.classfile.JavaClass clazz) return list of super classes of clazz in ascending order, i.e., Object is always the last element ClassVector vec = new ClassVector(); for(clazz = getSuperClass(clazz); clazz != null; clazz = getSuperClass(clazz)) vec.addElement(clazz); return vec.toArray();
public static com.sun.org.apache.bcel.internal.classfile.JavaClass[]	getSuperClasses(java.lang.String class_name) return list of super classes of clazz in ascending order, i.e., Object is always the last element. "null", if clazz cannot be found. JavaClass jc = lookupClass(class_name); return (jc == null? null : getSuperClasses(jc));
public static boolean	implementationOf(com.sun.org.apache.bcel.internal.classfile.JavaClass clazz, com.sun.org.apache.bcel.internal.classfile.JavaClass inter) return true, if clazz is an implementation of interface inter if(clazz == inter) return true; JavaClass[] super_interfaces = getInterfaces(clazz); for(int i=0; i < super_interfaces.length; i++) if(super_interfaces[i] == inter) return true; return false;
public static boolean	implementationOf(java.lang.String clazz, java.lang.String inter) return true, if clazz is an implementation of interface inter return implementationOf(lookupClass(clazz), lookupClass(inter));
public static boolean	implementationOf(com.sun.org.apache.bcel.internal.classfile.JavaClass clazz, java.lang.String inter) return true, if clazz is an implementation of interface inter return implementationOf(clazz, lookupClass(inter));
public static boolean	implementationOf(java.lang.String clazz, com.sun.org.apache.bcel.internal.classfile.JavaClass inter) return true, if clazz is an implementation of interface inter return implementationOf(lookupClass(clazz), inter);
public static boolean	instanceOf(com.sun.org.apache.bcel.internal.classfile.JavaClass clazz, com.sun.org.apache.bcel.internal.classfile.JavaClass super_class) return true, if clazz is an instance of super_class if(clazz == super_class) return true; JavaClass[] super_classes = getSuperClasses(clazz); for(int i=0; i < super_classes.length; i++) if(super_classes[i] == super_class) return true; if(super_class.isInterface()) return implementationOf(clazz, super_class); return false;
public static boolean	instanceOf(java.lang.String clazz, java.lang.String super_class) return true, if clazz is an instance of super_class return instanceOf(lookupClass(clazz), lookupClass(super_class));
public static boolean	instanceOf(com.sun.org.apache.bcel.internal.classfile.JavaClass clazz, java.lang.String super_class) return true, if clazz is an instance of super_class return instanceOf(clazz, lookupClass(super_class));
public static boolean	instanceOf(java.lang.String clazz, com.sun.org.apache.bcel.internal.classfile.JavaClass super_class) return true, if clazz is an instance of super_class return instanceOf(lookupClass(clazz), super_class);
public static com.sun.org.apache.bcel.internal.classfile.JavaClass	lookupClass(java.lang.String class_name) return class object for given fully qualified class name. // should be final ... clearCache(); if(class_name == null || class_name.equals("")) throw new RuntimeException("Invalid class name"); class_name = class_name.replace('/", '."); JavaClass clazz = (JavaClass)classes.get(class_name); if(clazz == null) { try { InputStream is = class_path.getInputStream(class_name); clazz = new ClassParser(is, class_name).parse(); class_name = clazz.getClassName(); } catch(IOException e) { return null; } classes.put(class_name, clazz); } return clazz;
public static ClassPath.ClassFile	lookupClassFile(java.lang.String class_name) return class file object for given Java class. try { return class_path.getClassFile(class_name); } catch(IOException e) { return null; }
public static void	removeClass(java.lang.String clazz) Remove class with given (fully qualifid) name from repository. classes.remove(clazz);
public static void	removeClass(com.sun.org.apache.bcel.internal.classfile.JavaClass clazz) Remove given class from repository. removeClass(clazz.getClassName());