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SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--java.lang.ClassLoader | +--com.javageeks.classloader.JDBCClassLoader
Constructor Summary | |
JDBCClassLoader(java.lang.ClassLoader parent,
java.sql.Connection conn,
java.lang.String sql)
Constructor. |
|
JDBCClassLoader(java.sql.Connection conn,
java.lang.String sql)
Constructor. |
Method Summary | |
java.lang.Class |
findClass(java.lang.String className)
Called by ClassLoader.loadClass when a classname is requested. |
byte[] |
findClassBytes(java.lang.String className)
Return byte array (which will be turned into a Class instance via ClassLoader.defineClass) for class |
java.lang.String |
findLibraryPath(java.lang.String libraryName)
Return full path to native library given by the name libraryName. |
java.util.Enumeration |
findResourcesEnum(java.lang.String resourceName)
Return Enumeration of resources corresponding to resourceName. |
java.net.URL |
findResourceURL(java.lang.String resourceName)
Return URL for resource given by resourceName |
static void |
main(java.lang.String[] args)
Test driver routine; assumes an IDB database with the following schema: CREATE TABLE class_tbl ( bytecode binary, classname varchar(80) primary key ); |
Methods inherited from class java.lang.ClassLoader |
defineClass, defineClass, defineClass, definePackage, findLibrary, findLoadedClass, findResource, findResources, findSystemClass, getPackage, getPackages, getParent, getResource, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, loadClass, resolveClass, setSigners |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public JDBCClassLoader(java.sql.Connection conn, java.lang.String sql)
conn
- The JDBC Connection to use. Must be already
connected.sql
- The SQL statement to execute to retrieve the
bytecode.public JDBCClassLoader(java.lang.ClassLoader parent, java.sql.Connection conn, java.lang.String sql)
parent
- The parent ClassLoader (in the 1.2 JDK scheme
of things)conn
- The JDBC Connection to use. Must be already
connected.sql
- The SQL statement to execute to retrieve the
bytecode.Method Detail |
public byte[] findClassBytes(java.lang.String className)
findClassBytes
in interface ClassLoaderStrategy
public java.net.URL findResourceURL(java.lang.String resourceName)
findResourceURL
in interface ClassLoaderStrategy
public java.util.Enumeration findResourcesEnum(java.lang.String resourceName)
findResourcesEnum
in interface ClassLoaderStrategy
public java.lang.String findLibraryPath(java.lang.String libraryName)
findLibraryPath
in interface ClassLoaderStrategy
public java.lang.Class findClass(java.lang.String className) throws java.lang.ClassNotFoundException
findClass
in class java.lang.ClassLoader
public static void main(java.lang.String[] args) throws java.lang.Exception
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