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 // Copyright 2006, 2007, 2008, 2010 The Apache Software Foundation
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 // http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package org.apache.tapestry5.services;
A thin wrapper around a set of AliasContributions. An org.apache.tapestry5.ioc.ObjectProvider is contributed to the org.apache.tapestry5.ioc.services.MasterObjectProvider service, to allow contributed objects to replace other objects (typically, built in services).

public interface AliasManager
{
    
Filters down the contributions based on the mode. Each contribution will identify a contribution type and a non-null object that implements the type and may identify a mode. Only contributions where the mode is blank or the mode matches the provided mode are returned. Mode specific contributions quietly override non-specific contributions (where the mode is blank).

Parameters:
mode
Returns:
map from contribution type to contribution object
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