1 | /*
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2 | * Licensed to the Apache Software Foundation (ASF) under one or more
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3 | * contributor license agreements. See the NOTICE file distributed with
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4 | * this work for additional information regarding copyright ownership.
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5 | * The ASF licenses this file to You under the Apache License, Version 2.0
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6 | * (the "License"); you may not use this file except in compliance with
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7 | * the License. You may obtain a copy of the License at
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8 | *
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9 | * http://www.apache.org/licenses/LICENSE-2.0
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10 | *
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11 | * Unless required by applicable law or agreed to in writing, software
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12 | * distributed under the License is distributed on an "AS IS" BASIS,
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13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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14 | * See the License for the specific language governing permissions and
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15 | * limitations under the License.
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16 | */
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17 | package org.apache.commons.collections;
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18 |
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19 | /**
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20 | * Defines a functor interface implemented by classes that create objects.
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21 | * <p>
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22 | * A <code>Factory</code> creates an object without using an input parameter.
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23 | * If an input parameter is required, then {@link Transformer} is more appropriate.
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24 | * <p>
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25 | * Standard implementations of common factories are provided by
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26 | * {@link FactoryUtils}. These include factories that return a constant,
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27 | * a copy of a prototype or a new instance.
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28 | *
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29 | * @since Commons Collections 2.1
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30 | * @version $Revision: 646777 $ $Date: 2008-04-10 14:33:15 +0200 (jeu., 10 avr. 2008) $
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31 | *
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32 | * @author Arron Bates
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33 | * @author Stephen Colebourne
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34 | */
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35 | public interface Factory {
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36 |
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37 | /**
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38 | * Create a new object.
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39 | *
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40 | * @return a new object
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41 | * @throws FunctorException (runtime) if the factory cannot create an object
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42 | */
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43 | public Object create();
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44 |
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45 | }
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