Package com.zfabrik.components.provider.util

Class FSComponentRepositoryHelper<DB extends FSComponentExtRepositoryDB<? extends FSCRDBComponent>>

java.lang.Object

com.zfabrik.components.provider.util.FSComponentRepositoryHelper<DB>

public class FSComponentRepositoryHelper<DB extends FSComponentExtRepositoryDB<? extends FSCRDBComponent>>
extends java.lang.Object

General repo implementation helper class. Can be forced to purge repo cache on init by setting the system prop com.zfabrik.cr.purge

Author:

hb

Field Summary

Fields

Modifier and Type	Field	Description
static long	DEF_EVICTION_DELAY

Constructor Summary

Constructors

Constructor	Description
FSComponentRepositoryHelper(java.lang.Class<DB> clz, java.io.File root)	Compatibility constructor with empty check properties.
FSComponentRepositoryHelper(java.lang.Class<DB> clz, java.io.File root, java.util.Properties checkProps)	Initialize a repo helper with a specific DB class, a local store folder and a set of check props that are to be found again to validate the repository storage.

Method Summary

Modifier and Type	Method	Description
void	evictLocalComponent(java.lang.String name)
java.io.File	getComponentFolder(FSCRDBComponent c)
java.io.File	getComponentRIFolder(java.lang.String name)
Lock	lockComponent(java.lang.String component)
Lock	lockDB()
DB	readDB()
void	saveDB(DB db)
void	setEvictionDelay(long evictionDelay)

Methods inherited from class java.lang.Object

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

Field Detail

DEF_EVICTION_DELAY

public static final long DEF_EVICTION_DELAY

See Also:

Constant Field Values

Constructor Detail

FSComponentRepositoryHelper

public FSComponentRepositoryHelper(java.lang.Class<DB> clz,
                                   java.io.File root)

Compatibility constructor with empty check properties.

FSComponentRepositoryHelper

public FSComponentRepositoryHelper(java.lang.Class<DB> clz,
                                   java.io.File root,
                                   java.util.Properties checkProps)

Initialize a repo helper with a specific DB class, a local store folder and a set of check props that are to be found again to validate the repository storage. If the latter check fails, local repository content will be evicted.

Method Detail

setEvictionDelay

public void setEvictionDelay(long evictionDelay)

lockDB

public Lock lockDB()
            throws java.io.IOException

Throws:

java.io.IOException

lockComponent

public Lock lockComponent(java.lang.String component)
                   throws java.io.IOException

Throws:

java.io.IOException

getComponentFolder

public java.io.File getComponentFolder(FSCRDBComponent c)

getComponentRIFolder

public java.io.File getComponentRIFolder(java.lang.String name)

evictLocalComponent

public void evictLocalComponent(java.lang.String name)
                         throws java.io.IOException

Throws:

java.io.IOException

readDB

public DB readDB()
          throws java.io.IOException

Throws:

java.io.IOException

saveDB

public void saveDB(DB db)
            throws java.io.IOException

Throws:

java.io.IOException