Package org.springframework.boot.type.classreading

Class ConcurrentReferenceCachingMetadataReaderFactory

java.lang.Object

org.springframework.core.type.classreading.SimpleMetadataReaderFactory

org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory

All Implemented Interfaces:

MetadataReaderFactory

public class ConcurrentReferenceCachingMetadataReaderFactory
extends SimpleMetadataReaderFactory

Caching implementation of the MetadataReaderFactory interface backed by a ConcurrentReferenceHashMap, caching MetadataReader per Spring Resource handle (i.e. per ".class" file).

Since:

1.4.0

Author:

Phillip Webb

See Also:

• CachingMetadataReaderFactory

Constructor Summary

Constructors

Constructor	Description
ConcurrentReferenceCachingMetadataReaderFactory()	Create a new ConcurrentReferenceCachingMetadataReaderFactory instance for the default class loader.
ConcurrentReferenceCachingMetadataReaderFactory(ClassLoader classLoader)	Create a new ConcurrentReferenceCachingMetadataReaderFactory instance for the given class loader.
ConcurrentReferenceCachingMetadataReaderFactory(ResourceLoader resourceLoader)	Create a new ConcurrentReferenceCachingMetadataReaderFactory instance for the given resource loader.

Method Summary

Modifier and Type	Method	Description
void	clearCache()	Clear the entire MetadataReader cache, removing all cached class metadata.
protected MetadataReader	createMetadataReader(Resource resource)	Create the meta-data reader.
MetadataReader	getMetadataReader(Resource resource)

Methods inherited from class org.springframework.core.type.classreading.SimpleMetadataReaderFactory

getMetadataReader, getResourceLoader

Methods inherited from class java.lang.Object

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

Constructor Details

ConcurrentReferenceCachingMetadataReaderFactory

public ConcurrentReferenceCachingMetadataReaderFactory()

Create a new ConcurrentReferenceCachingMetadataReaderFactory instance for the default class loader.

ConcurrentReferenceCachingMetadataReaderFactory

public ConcurrentReferenceCachingMetadataReaderFactory(ResourceLoader resourceLoader)

Create a new ConcurrentReferenceCachingMetadataReaderFactory instance for the given resource loader.

Parameters:

resourceLoader - the Spring ResourceLoader to use (also determines the ClassLoader to use)

ConcurrentReferenceCachingMetadataReaderFactory

public ConcurrentReferenceCachingMetadataReaderFactory(ClassLoader classLoader)

Create a new ConcurrentReferenceCachingMetadataReaderFactory instance for the given class loader.

Parameters:

classLoader - the ClassLoader to use

Method Details

getMetadataReader

public MetadataReader getMetadataReader(Resource resource)
                                 throws IOException

Specified by:

getMetadataReader in interface MetadataReaderFactory

Overrides:

getMetadataReader in class SimpleMetadataReaderFactory

Throws:

IOException

createMetadataReader

protected MetadataReader createMetadataReader(Resource resource)
                                       throws IOException

Create the meta-data reader.

Parameters:

resource - the source resource.

Returns:

the meta-data reader

Throws:

IOException - on error

clearCache

public void clearCache()

Clear the entire MetadataReader cache, removing all cached class metadata.