package xapi.util.impl;
import xapi.collect.api.Fifo;
import xapi.collect.impl.SimpleFifo;
import xapi.util.api.RemovalHandler;
/**
* Handy wrapper class for bundling multiple RemovesHandlers into a single callback.
*
* Most often used to combie multiple RemovalHandler objects into a single returned object.
*
* @author James X. Nelson (james@wetheinter.net, @james)
*
*/
public class RemovesMultiHandlers implements RemovalHandler{
private final Fifo<RemovalHandler> handles;
public RemovesMultiHandlers() {
// we by default use the simple, concurrent fifo, to avoid dependency
// on the injection library too early in our module structure
handles = new SimpleFifo<RemovalHandler>();
}
@Override
public void remove() {
while(!handles.isEmpty()){
RemovalHandler handle = handles.take();
handle.remove();
}
}
/**
* Push a handler onto our callback stack
*
* @param handle - Handler to be called on remove
* @return - this, for chaining
*/
public RemovesMultiHandlers addHandler(RemovalHandler handle){
handles.give(handle);
return this;
}
}