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brooklyn.entity.basic
[Java] Interface AbstractGroup

brooklyn.entity.Entity
  brooklyn.entity.Group
      brooklyn.entity.trait.Changeable
          brooklyn.entity.basic.AbstractGroup
              brooklyn.entity.rebind.Rebindable
All Superinterfaces:
Entity, Group, Changeable, Rebindable
public interface AbstractGroup
extends Changeable, Entity, Group

Represents a group of entities - sub-classes can support dynamically changing membership, ad hoc groupings, etc.

Synchronization model. When changing and reading the group membership, this class uses internal synchronization to ensure atomic operations and the "happens-before" relationship for reads/updates from different threads. Sub-classes should not use this same synchronization mutex when doing expensive operations - e.g. if resizing a cluster, don't block everyone else from asking for the current number of members.

Field Summary
 
Fields inherited from interface Changeable
GROUP_SIZE, MEMBER_ADDED, MEMBER_REMOVED
 
Method Summary
void setMembers(java.util.Collection m)

void setMembers(java.util.Collection mm, Predicate filter)

Removes any existing members that do not match the given filter, and adds those entities in the given collection that match the predicate.
 
Methods inherited from interface Entity
addChild, addChild, addEnricher, addGroup, addOwnedChild, addPolicy, clearOwner, clearParent, getApplication, getApplicationId, getAttribute, getChildren, getConfig, getDisplayName, getEnrichers, getEntityType, getGroups, getId, getLocations, getOwnedChildren, getOwner, getParent, getPolicies, getRebindSupport, invoke, removeChild, removeEnricher, removeOwnedChild, removePolicy, setOwner, setParent
 
Methods inherited from interface Group
addMember, getCurrentSize, getMembers, hasMember, removeMember
 

Method Detail

setMembers

public void setMembers(java.util.Collection m)

setMembers

public void setMembers(java.util.Collection mm, Predicate filter)
Removes any existing members that do not match the given filter, and adds those entities in the given collection that match the predicate.
Parameters:
mm - Entities to test against the filter, and to add
filter - Filter for entities that are to be members (or null for "all")

 

Brooklyn Multi-Cloud Application Management Platform
brooklyncentral.github.com. Apache License. © 2012.