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annotate src/org/dancres/blitz/arc/BackingStore.java @ 32:243c74d599bf

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author Dan Creswell <dan.creswell@gmail.com>
date Sat, 12 Jun 2010 10:41:47 +0100
parents 3dc0c5604566
children
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3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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1 package org.dancres.blitz.arc;
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2
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3 import java.io.IOException;
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4
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5 import org.dancres.blitz.cache.Identifiable;
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
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6 import org.dancres.blitz.cache.Identifier;
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7
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Dan Creswell <dan.creswell@gmail.com>
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8 /**
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9 Implementers of this class will be able to store and recover entities based
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
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10 on an Identifier.
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11 */
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12 public interface BackingStore {
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13 /**
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14 @return Identifiable associated with Identifier or <code>null</code>
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15 if it cannot be found.
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16 */
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17 public Identifiable load(Identifier anId) throws IOException;
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18
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19 /**
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20 Must deal with handling of delete, update and write. All saves
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21 MUST be done asynchronously. i.e. ArcCache does not expect this
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
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22 method to block. This is required to avoid the risk of deadlock under
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23 various circumstances.
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24 */
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25 public void save(Identifiable anIdentifiable) throws IOException;
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26
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27 public String getName();
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28 }