ConcurrentReferenceCachingMetadataReaderFactory (Spring Boot Docs 2.0.0.RELEASE API)

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 and 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

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and 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 Detail
  - 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 Detail
  - 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.

Class ConcurrentReferenceCachingMetadataReaderFactory

Constructor Summary

Method Summary

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

Methods inherited from class java.lang.Object

Constructor Detail

ConcurrentReferenceCachingMetadataReaderFactory

ConcurrentReferenceCachingMetadataReaderFactory

ConcurrentReferenceCachingMetadataReaderFactory

Method Detail

getMetadataReader

createMetadataReader

clearCache