Access resources without rules

Rules are not required to to access resources. It is possible to directly access resources, using only the ResourceCollection name; you do not need to know the Resource or ResourceDomain implementation class names. The API is com.ibm.wcp.runtime.util.RuntimeUtils.

RuntimeUtils methods:

public static Resource findById(String collectionName, String name, RequestContext context)

Retrieves data based on a collection name and ID. Returns Resource, a resource instance.
  • collectionName: name of resource collection to use to access data.
  • name: key to use for lookup
  • requestContext: RequestContext to be passed to the resource collection

public static Enumeration findResourcesByProperty(String collectionName, String name, String value, RequestContext context)

Retrieves data based on a collection name, property name, and value. Returns Enumeration, an enumeration of resource instances.
  • collectionName: name of resource collection to use to access data
  • name: property to use for lookup
  • value: property value to use for lookup

public static Enumeration findResourcesByQuery(String collectionName, Query query, RequestContext context) throws QueryException

Retrieve data based on a collection name and Query. Returns Enumeration, an enumeration of resource instances.
  • collectionName: name of resource collection to use to access data
  • query: Query object to use for lookup
Note: You can invoke any of the RuntimeUtil APIs with or without a supplied RequestContext.

PersonalizationContext methods:

public String getTranslatedUsername(String collectionName)

Returns the username that Personalization will use for the specified collection. Can return null if no user has been established.

Note: User should issue setRequestUsername(String aName) to establish the name to be translated.

 

 

Examples of usage

Simple case (no user translation needed):

Resource res = com.ibm.wcp.runtime.util.RuntimeUtils.findById("Personnel", "000330");

Advanced case (using ID translation) 

String collectionName = "Personnel";
RequestContext context = com.ibm.servlet.personalization.context.PersonalizationContext.getRequestContext();
context.setRequestUsername("000330");  // a valid user ID
String idToFind = context.getTranslatedUsername(collectionName);

Parent topic: Resources, resources instances, and resource collections

Parent topic: Personalization programming reference

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