org.sapia.soto
Class AttributeServiceSelector

java.lang.Object
  org.sapia.soto.AttributeServiceSelector

All Implemented Interfaces:

ServiceSelector

public class AttributeServiceSelector
extends java.lang.Object
implements ServiceSelector

This class implements a ServiceSelector that selects Soto Services based on their configured attributes.

Usage:

  // container is a SotoContainer or Env instance
  AttributeServiceSelector selector = new AttributeServiceSelector();
  selector
    .addAttribute(
      new Attribute().setName("attribute1")
     )
    .addAttribute(
      new Attribute().setName("attribute2").setValue("value2")
     );
   
  List result = services.lookup(selector, false);
  ...
 

The above example looks for all services that have an "attribute1" attribute AND an "attribute2" attribute with value "value2".

The involved classes support chained invocation, for convenience.

Author:

Yanick Duchesne

Copyright:

Copyright © 2002-2005 Sapia Open Source Software. All Rights Reserved.

License:

Read the license.txt file of the jar or visit the license page at the Sapia OSS web site

See Also:

SotoContainer.lookup(ServiceSelector,boolean), Env.lookup(ServiceSelector, boolean)

Constructor Summary

AttributeServiceSelector()

Method Summary

boolean	accepts(ServiceMetaData meta)
AttributeServiceSelector	addCriteria(Attribute attr)

Methods inherited from class java.lang.Object

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

Constructor Detail

AttributeServiceSelector

public AttributeServiceSelector()

Method Detail

addCriteria

public AttributeServiceSelector addCriteria(Attribute attr)

accepts

public boolean accepts(ServiceMetaData meta)

Specified by:

accepts in interface ServiceSelector

Parameters:

meta - a ServiceMetadata.

Returns:

true if this instance determines that the given instance should be returned in the lookup result.

See Also:

ServiceSelector.accepts(org.sapia.soto.ServiceMetaData)