Package org.apache.bcel.util

Class LruCacheClassPathRepository

  • All Implemented Interfaces:
    Repository
    public class LruCacheClassPathRepository
extends java.lang.Object
    Maintains a least-recently-used (LRU) cache of JavaClass with maximum size cacheSize.

    This repository supports a class path consisting of too many JAR files to handle in ClassPathRepository or MemorySensitiveClassPathRepository without causing OutOfMemoryError.

    Since:
    6.4.0

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void clear()
      Clears all entries from cache.
      JavaClass findClass​(java.lang.String className)
      Finds the class with the name provided, if the class isn't there, return NULL.
      ClassPath getClassPath()
      Gets the ClassPath associated with this Repository
      JavaClass loadClass​(java.lang.Class<?> clazz)
      Finds the JavaClass object for a runtime Class object.
      JavaClass loadClass​(java.lang.String className)
      Finds a JavaClass object by name.
      void removeClass​(JavaClass javaClass)
      Removes class from repository
      void storeClass​(JavaClass javaClass)
      Stores the provided class under "clazz.getClassName()"

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • LruCacheClassPathRepository

        public LruCacheClassPathRepository​(ClassPath path,
                                   int cacheSize)

    • Method Detail

      • findClass

        public JavaClass findClass​(java.lang.String className)
        Description copied from interface: Repository
        Finds the class with the name provided, if the class isn't there, return NULL.
        Specified by:
        findClass in interface Repository

      • storeClass

        public void storeClass​(JavaClass javaClass)
        Description copied from interface: Repository
        Stores the provided class under "clazz.getClassName()"
        Specified by:
        storeClass in interface Repository

      • clear

        public void clear()
        Description copied from interface: Repository
        Clears all entries from cache.
        Specified by:
        clear in interface Repository

      • loadClass

        public JavaClass loadClass​(java.lang.String className)
                    throws java.lang.ClassNotFoundException
        Finds a JavaClass object by name. If it is already in this Repository, the Repository version is returned. Otherwise, the Repository's classpath is searched for the class (and it is added to the Repository if found).
        Specified by:
        loadClass in interface Repository
        Parameters:
        className - the name of the class
        Returns:
        the JavaClass object
        Throws:
        java.lang.ClassNotFoundException - if the class is not in the Repository, and could not be found on the classpath

      • loadClass

        public JavaClass loadClass​(java.lang.Class<?> clazz)
                    throws java.lang.ClassNotFoundException
        Finds the JavaClass object for a runtime Class object. If a class with the same name is already in this Repository, the Repository version is returned. Otherwise, getResourceAsStream() is called on the Class object to find the class's representation. If the representation is found, it is added to the Repository.
        Specified by:
        loadClass in interface Repository
        Parameters:
        clazz - the runtime Class object
        Returns:
        JavaClass object for given runtime class
        Throws:
        java.lang.ClassNotFoundException - if the class is not in the Repository, and its representation could not be found
        See Also:
        Class