Package org.apache.lucene.util

Class ClasspathResourceLoader

java.lang.Object

org.apache.lucene.util.ClasspathResourceLoader

All Implemented Interfaces:

ResourceLoader

public final class ClasspathResourceLoader
extends Object
implements ResourceLoader

Simple ResourceLoader that uses ClassLoader.getResourceAsStream(String) and Class.forName(String,boolean,ClassLoader) to open resources and classes, respectively.

To use this class with the Java Module System, you must open all modules on classpath that contain resources to the org.apache.lucene.core module, otherwise resources can't be looked up. It is recommended to use ModuleResourceLoader for such use cases as this would limit to certain modules.

See Also:

• ModuleResourceLoader

Constructor Summary

Constructors

Constructor	Description
ClasspathResourceLoader(Class<?> clazz)	Creates an instance using the context classloader to load Resources and classes Resources are resolved relative to the given class, if path is not absolute.
ClasspathResourceLoader(ClassLoader loader)	Creates an instance using the given classloader to load Resources and classes.

Method Summary

Modifier and Type	Method	Description
<T> Class<? extends T>	findClass(String cname, Class<T> expectedType)	Finds class of the name and expected type
InputStream	openResource(String resource)	Opens a named resource

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.lucene.util.ResourceLoader

newInstance

Constructor Details

ClasspathResourceLoader

public ClasspathResourceLoader(ClassLoader loader)

Creates an instance using the given classloader to load Resources and classes. Resource paths must be absolute.

ClasspathResourceLoader

public ClasspathResourceLoader(Class<?> clazz)

Creates an instance using the context classloader to load Resources and classes Resources are resolved relative to the given class, if path is not absolute.

Method Details

openResource

public InputStream openResource(String resource)
                         throws IOException

Description copied from interface: ResourceLoader

Opens a named resource

Specified by:

openResource in interface ResourceLoader

Throws:

IOException

findClass

public <T> Class<? extends T> findClass(String cname,
 Class<T> expectedType)

Description copied from interface: ResourceLoader

Finds class of the name and expected type

Specified by:

findClass in interface ResourceLoader