root / trunk / applications / appgvSIG / src / com / vividsolutions / jump / util / Block.java @ 7738
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| 1 | 312 | fernando | /*
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| 2 | * The Unified Mapping Platform (JUMP) is an extensible, interactive GUI
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| 3 | * for visualizing and manipulating spatial features with geometry and attributes.
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| 4 | *
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| 5 | * Copyright (C) 2003 Vivid Solutions
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| 6 | *
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| 7 | * This program is free software; you can redistribute it and/or
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| 8 | * modify it under the terms of the GNU General Public License
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| 9 | * as published by the Free Software Foundation; either version 2
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| 10 | * of the License, or (at your option) any later version.
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| 11 | *
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| 12 | * This program is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with this program; if not, write to the Free Software
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| 19 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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| 20 | *
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| 21 | * For more information, contact:
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| 22 | *
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| 23 | * Vivid Solutions
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| 24 | * Suite #1A
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| 25 | * 2328 Government Street
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| 26 | * Victoria BC V8T 5G5
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| 27 | * Canada
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| 28 | *
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| 29 | * (250)385-6040
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| 30 | * www.vividsolutions.com
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| 31 | */
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| 32 | package com.vividsolutions.jump.util; |
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| 33 | |||
| 34 | /**
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| 35 | * Simply a chunk of code that can be passed around. Facilitates
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| 36 | * Smalltalk-like programming. Also useful as a "lexical closure"
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| 37 | * i.e. a chunk of code with variables having long lifetimes.
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| 38 | * <p>
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| 39 | * Typically only one of the #yield methods needs to be implemented.
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| 40 | * Which one depends on the context.
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| 41 | */
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| 42 | public abstract class Block { |
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| 43 | public Object yield(Object arg1, Object arg2) { |
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| 44 | throw new UnsupportedOperationException(); |
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| 45 | } |
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| 46 | public Object yield(Object arg) { |
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| 47 | throw new UnsupportedOperationException(); |
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| 48 | } |
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| 49 | public Object yield() { |
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| 50 | throw new UnsupportedOperationException(); |
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| 51 | } |
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| 52 | } |