org.springframework.integration.metadata

Class PropertiesPersistingMetadataStore

java.lang.Object

org.springframework.integration.metadata.PropertiesPersistingMetadataStore

All Implemented Interfaces:

DisposableBean, InitializingBean, ConcurrentMetadataStore, MetadataStore

public class PropertiesPersistingMetadataStore
extends Object
implements ConcurrentMetadataStore, InitializingBean, DisposableBean

Properties file-based implementation of MetadataStore. To avoid conflicts each instance should be constructed with the unique key from which unique file name will be generated. The file name will be 'persistentKey' + ".last.entry". Files will be written to the 'java.io.tmpdir' + "/spring-integration/".

Since:

2.0

Author:

Oleg Zhurakousky, Mark Fisher, Gary Russell

Constructor Summary

Constructors

Constructor and Description
PropertiesPersistingMetadataStore()

Method Summary

Methods

Modifier and Type	Method and Description
void	afterPropertiesSet()
void	destroy()
String	get(String key) Reads a value for the given key from this MetadataStore.
void	put(String key, String value) Writes a key value pair to this MetadataStore.
String	putIfAbsent(String key, String value) Atomically insert the key into the store.
String	remove(String key) Remove a value for the given key from this MetadataStore.
boolean	replace(String key, String oldValue, String newValue) Atomically replace the value for the key in the store if the old value matches the oldValue argument.
void	setBaseDirectory(String baseDirectory)

Methods inherited from class java.lang.Object

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

Constructor Detail

PropertiesPersistingMetadataStore

public PropertiesPersistingMetadataStore()

Method Detail

setBaseDirectory

public void setBaseDirectory(String baseDirectory)

afterPropertiesSet

public void afterPropertiesSet()
                        throws Exception

Specified by:

afterPropertiesSet in interface InitializingBean

Throws:

Exception

put

public void put(String key,
       String value)

Description copied from interface: MetadataStore

Writes a key value pair to this MetadataStore.

Specified by:

put in interface MetadataStore

Parameters:

key - The key.

value - The value.

get

public String get(String key)

Description copied from interface: MetadataStore

Reads a value for the given key from this MetadataStore.

Specified by:

get in interface MetadataStore

Parameters:

key - The key.

Returns:

The value.

remove

public String remove(String key)

Description copied from interface: MetadataStore

Remove a value for the given key from this MetadataStore.

Specified by:

remove in interface MetadataStore

Parameters:

key - The key.

Returns:

The previous value associated with key, or null if there was no mapping for key.

putIfAbsent

public String putIfAbsent(String key,
                 String value)

Description copied from interface: ConcurrentMetadataStore

Atomically insert the key into the store.

Specified by:

putIfAbsent in interface ConcurrentMetadataStore

Parameters:

key - The key.

value - The value.

Returns:

null if successful, the old value otherwise.

replace

public boolean replace(String key,
              String oldValue,
              String newValue)

Description copied from interface: ConcurrentMetadataStore

Atomically replace the value for the key in the store if the old value matches the oldValue argument.

Specified by:

replace in interface ConcurrentMetadataStore

Parameters:

key - The key.

oldValue - The old value.

newValue - The new value.

Returns:

true if successful.

destroy

public void destroy()
             throws Exception

Specified by:

destroy in interface DisposableBean

Throws:

Exception