DBCacheHelper

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java.lang.Object
- com.ibm.commerce.inventory.facade.server.helper.DBCacheHelper

```
public class DBCacheHelper
extends java.lang.Object
```
This help class is used to update the DOM inventory database cache when expired.

Field Summary

Fields
Modifier and Type Field and Description

static java.lang.String COPYRIGHT
IBM Copyright notice field.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static boolean`	`needToUpdateDBCache(InventoryAvailabilityType aInventoryAvailability, Invcnf aInventoryConfiguration)` This method checks whether it needs to update database cache.
`static void`	`updateDatabaseCache(java.util.List listNouns)` This method updates the database cache according to the inventory availability in external Order Management System.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - COPYRIGHT
```
public static final java.lang.String COPYRIGHT
```
    IBM Copyright notice field.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - updateDatabaseCache
```
public static void updateDatabaseCache(java.util.List listNouns)
                                throws AbstractApplicationException
```
    This method updates the database cache according to the inventory availability in external Order Management System.
    
    Parameters:
    
    listNouns - the list of InventoryAvailability Nouns got from external, which is InventoryAvailabilityType. Order Management System
    
    Throws:
    
    AbstractApplicationException
  - needToUpdateDBCache
```
public static boolean needToUpdateDBCache(InventoryAvailabilityType aInventoryAvailability,
                                          Invcnf aInventoryConfiguration)
```
    This method checks whether it needs to update database cache. In a case that the database cache is instantly expired, it makes no sense to update database cache.
    
    Parameters:
    
    aInventoryAvailability - the InventoryAvailability logical noun.
    
    aInventoryConfiguration - the inventory configuration.
    
    Returns:
    
    true if needs to update the database cache; otherwise return false.