Mercurial > hg > blitz_stable

annotate src/org/prevayler/PrevalentSystem.java @ 27:511648fa4d64 Version 2.1

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Version to 2.1
author Dan Creswell <dan.creswell@gmail.com>
date Mon, 04 Jan 2010 13:00:40 +0000
parents 3dc0c5604566
children
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1 /*
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2 The copyright of all source code included in this Prevayler distribution is
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3 held by Klaus Wuestefeld, except the files that specifically state otherwise.
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4 All rights are reserved. "PREVAYLER" is a trademark of Klaus Wuestefeld.
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5
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6
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7 BSD License:
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8
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9 Redistribution and use in source and binary forms, with or without
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10 modification, are permitted provided that the following conditions are met:
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11
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12 - Redistributions of source code must retain the above copyright notice, this
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13 list of conditions and the following disclaimer.
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14
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15 - Redistributions in binary form must reproduce the above copyright notice,
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16 this list of conditions and the following disclaimer in the documentation
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17 and/or other materials provided with the distribution.
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18
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19 - Neither the name of Prevayler nor the names of its contributors may be used
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20 to endorse or promote products derived from this software without specific
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21 prior written permission.
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22
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23
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24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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25 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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26 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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27 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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28 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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29 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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30 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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31 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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32 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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33 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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34 POSSIBILITY OF SUCH DAMAGE.
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35 */
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36
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37 package org.prevayler;
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38
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39 import java.io.Serializable;
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40
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41
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42 /**
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43 * A system that implements this interface can be made transparently persistent with Prevayler. All business objects in this system must be deterministic. i.e.: Any two PrevalentSystems of the same class must produce the same results given the same commands.
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44 * @see org.prevayler.Prevayler
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45 */
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46 public interface PrevalentSystem extends Serializable {
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47
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48 /**
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49 * Sets the clock to be used by this system for ALL its date/time related functions. This method is called only once by Prevayler during the first system initialization.
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50 */
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51 public void clock(AlarmClock clock);
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52
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53 /**
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54 * Returns the clock used by this system for ALL its date/time related functions.
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55 */
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56 public AlarmClock clock();
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57
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58 public void add(SnapshotContributor aContributor);
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59
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60 /**
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61 This method would typically be used, for example, when something is
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62 about to be deleted or freed (perhaps as part of delete all Entry's)
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63 and thus doesn't wish to provide contributions any longer
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64 */
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65 public void remove(SnapshotContributor aContributor);
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66
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67 public Serializable[] getSnapshotContributions();
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68 }