程序包 cn.taketoday.core.type.classreading

类 ConcurrentReferenceCachingMetadataReaderFactory

java.lang.Object

cn.taketoday.core.type.classreading.SimpleMetadataReaderFactory

cn.taketoday.core.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory

所有已实现的接口:

MetadataReaderFactory

public class ConcurrentReferenceCachingMetadataReaderFactory
extends SimpleMetadataReaderFactory

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

从以下版本开始:

4.0

作者:

Phillip Webb, Harry Yang 2021/11/26 21:51

另请参阅:

• CachingMetadataReaderFactory

字段概要

字段

修饰符和类型	字段	说明
private final ConcurrentReferenceHashMap<Resource,MetadataReader>	cache

构造器概要

构造器

构造器	说明
ConcurrentReferenceCachingMetadataReaderFactory()	Create a new ConcurrentReferenceCachingMetadataReaderFactory instance for the default class loader.
ConcurrentReferenceCachingMetadataReaderFactory(ResourceLoader resourceLoader)	Create a new ConcurrentReferenceCachingMetadataReaderFactory instance for the given resource loader.
ConcurrentReferenceCachingMetadataReaderFactory(ClassLoader classLoader)	Create a new ConcurrentReferenceCachingMetadataReaderFactory instance for the given class loader.

方法概要

修饰符和类型	方法	说明
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)	Obtain a MetadataReader for the given resource.

从类继承的方法 cn.taketoday.core.type.classreading.SimpleMetadataReaderFactory

getMetadataReader, getResourceLoader

从类继承的方法 java.lang.Object

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

字段详细资料

cache

private final ConcurrentReferenceHashMap<Resource,MetadataReader> cache

构造器详细资料

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.

参数:

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

ConcurrentReferenceCachingMetadataReaderFactory

public ConcurrentReferenceCachingMetadataReaderFactory(ClassLoader classLoader)

Create a new ConcurrentReferenceCachingMetadataReaderFactory instance for the given class loader.

参数:

classLoader - the ClassLoader to use

方法详细资料

getMetadataReader

public MetadataReader getMetadataReader(Resource resource)
                                 throws IOException

从接口复制的说明: MetadataReaderFactory

Obtain a MetadataReader for the given resource.

指定者:

getMetadataReader 在接口中 MetadataReaderFactory

覆盖:

getMetadataReader 在类中 SimpleMetadataReaderFactory

参数:

resource - the resource (pointing to a ".class" file)

返回:

a holder for the ClassReader instance (never null)

抛出:

IOException - in case of I/O failure

ClassFormatException - in case of an incompatible class format

createMetadataReader

protected MetadataReader createMetadataReader(Resource resource)
                                       throws IOException

Create the meta-data reader.

参数:

resource - the source resource.

返回:

the meta-data reader

抛出:

IOException - on error

clearCache

public void clearCache()

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