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java.lang.Objectnet.sf.saxon.trans.DynamicLoader
public class DynamicLoader
Utility class used to perform dynamic loading of user-hook implementations
| Field Summary | |
|---|---|
protected HashMap<String,Class> |
knownClasses
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| Constructor Summary | |
|---|---|
DynamicLoader()
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| Method Summary | |
|---|---|
Class |
getClass(String className,
PrintStream traceOut,
ClassLoader classLoader)
Load a class using the class name provided. |
ClassLoader |
getClassLoader()
Get the ClassLoader supplied using the method setClassLoader(java.lang.ClassLoader). |
Object |
getInstance(String className,
ClassLoader classLoader)
Instantiate a class using the class name provided. |
Object |
getInstance(String className,
PrintStream traceOut,
ClassLoader classLoader)
Instantiate a class using the class name provided, with the option of tracing Note that the method does not check that the object is of the right class. |
protected void |
registerKnownClasses()
Register classes that might be dynamically loaded even though they are contained within Saxon itself. |
void |
setClassLoader(ClassLoader loader)
Set a ClassLoader to be used when loading external classes. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
|---|
protected HashMap<String,Class> knownClasses
| Constructor Detail |
|---|
public DynamicLoader()
| Method Detail |
|---|
protected void registerKnownClasses()
public void setClassLoader(ClassLoader loader)
loader - the ClassLoader to be used in this configurationpublic ClassLoader getClassLoader()
setClassLoader(java.lang.ClassLoader).
If none has been supplied, return null.
public Class getClass(String className,
PrintStream traceOut,
ClassLoader classLoader)
throws XPathException
This method is intended for internal use only.
className - A string containing the name of the
class, for example "com.microstar.sax.LarkDriver"traceOut - if diagnostic tracing is required, the destination for the output; otherwise nullclassLoader - The ClassLoader to be used to load the class. If this is null, then
the classLoader used will be the first one available of: the classLoader registered
with the Configuration using setClassLoader(java.lang.ClassLoader); the context class loader for
the current thread; or failing that, the class loader invoked implicitly by a call
of Class.forName() (which is the ClassLoader that was used to load the Configuration
object itself).
XPathException - if the class cannot be loaded.
public Object getInstance(String className,
ClassLoader classLoader)
throws XPathException
This method is intended for internal use only.
className - A string containing the name of the
class, for example "com.microstar.sax.LarkDriver"classLoader - The ClassLoader to be used to load the class. If this is null, then
the classLoader used will be the first one available of: the classLoader registered
with the Configuration using setClassLoader(java.lang.ClassLoader); the context class loader for
the current thread; or failing that, the class loader invoked implicitly by a call
of Class.forName() (which is the ClassLoader that was used to load the Configuration
object itself).
XPathException - if the class cannot be loaded.
public Object getInstance(String className,
PrintStream traceOut,
ClassLoader classLoader)
throws XPathException
This method is intended for internal use only.
className - A string containing the name of the
class, for example "com.microstar.sax.LarkDriver"traceOut - if attempts to load classes are to be traced, then the destination
for the trace output; otherwise nullclassLoader - The ClassLoader to be used to load the class. If this is null, then
the classLoader used will be the first one available of: the classLoader registered
with the Configuration using setClassLoader(java.lang.ClassLoader); the context class loader for
the current thread; or failing that, the class loader invoked implicitly by a call
of Class.forName() (which is the ClassLoader that was used to load the Configuration
object itself).
XPathException - if the class cannot be loaded.
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