svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.remoteclient / src / main / java / org / gvsig / remoteclient / taskplanning / FIFOTaskPlanner.java @ 40559
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | 40435 | jjdelcerro | *
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4 | 40559 | jjdelcerro | * Copyright (C) 2007-2013 gvSIG Association.
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5 | 40435 | jjdelcerro | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | 40559 | jjdelcerro | * as published by the Free Software Foundation; either version 3
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9 | 40435 | jjdelcerro | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | 40559 | jjdelcerro | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | 40435 | jjdelcerro | *
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21 | 40559 | jjdelcerro | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | 40435 | jjdelcerro | */
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24 | /* CVS MESSAGES:
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25 | *
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26 | * $Id: FIFOTaskPlanner.java 29670 2009-06-29 17:17:55Z jpiera $
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27 | * $Log$
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28 | * Revision 1.1 2006-05-12 07:15:45 jaume
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29 | * *** empty log message ***
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30 | *
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31 | * Revision 1.1 2006/05/11 17:18:06 jaume
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32 | * Un planificador, monitorizador, de descargas que trabaja en segundo plano
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33 | *
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34 | *
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35 | */
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36 | package org.gvsig.remoteclient.taskplanning; |
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37 | |||
38 | /**
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39 | * A simple FIFO task planner. The tasks returned by this planner are executed
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40 | * enterely. It does not issue another task until the current is finished.
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41 | * @author jaume
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42 | *
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43 | */
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44 | public class FIFOTaskPlanner implements ITaskPlanner { |
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45 | IQueue queue; |
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46 | |||
47 | /**
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48 | * Creates a new instance of FIFOTaskPlanner that will work against the
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49 | * queue passed as paramenter
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50 | * @param queue, the IQueue to be planned
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51 | */
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52 | public FIFOTaskPlanner(IQueue queue) {
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53 | this.queue = queue;
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54 | } |
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55 | |||
56 | |||
57 | public IRunnableTask nextTask() {
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58 | synchronized (this) { |
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59 | return (IRunnableTask) queue.getTasks().remove(0); |
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60 | } |
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61 | } |
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62 | /**
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63 | * FIFO plans have no previous tasks so, null is always returned.
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64 | */
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65 | public IRunnableTask previousTask() {
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66 | return null; |
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67 | } |
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68 | |||
69 | } |