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annotate src/org/dancres/blitz/entry/ci/CacheLine.java @ 0:3dc0c5604566

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Initial checkin of blitz 2.0 fcs - no installer yet.
author Dan Creswell <dan.creswell@gmail.com>
date Sat, 21 Mar 2009 11:00:06 +0000
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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.entry.ci;
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
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2
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Dan Creswell <dan.creswell@gmail.com>
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3 import java.util.Set;
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4 import java.util.HashSet;
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5
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Dan Creswell <dan.creswell@gmail.com>
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6 import java.util.ArrayList;
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Dan Creswell <dan.creswell@gmail.com>
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7 import java.util.LinkedList;
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8 import java.util.List;
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Dan Creswell <dan.creswell@gmail.com>
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9
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Dan Creswell <dan.creswell@gmail.com>
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10 import org.dancres.blitz.oid.OID;
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11
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Dan Creswell <dan.creswell@gmail.com>
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12 import org.dancres.blitz.entry.TupleLocator;
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Dan Creswell <dan.creswell@gmail.com>
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13 import org.dancres.blitz.entry.EntrySleeve;
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14
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
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15 /**
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16 Maintains a list of all entries with the same hashcode for a particular
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Dan Creswell <dan.creswell@gmail.com>
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17 field.
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18 */
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19 class CacheLine {
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20 private Set theIds = new HashSet();
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Dan Creswell <dan.creswell@gmail.com>
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21
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22 TupleLocator getLocator() {
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23 if (theIds.size() == 0)
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24 return ArrayLocatorImpl.EMPTY_LOCATOR;
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25 else
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26 return new CacheLineLocatorImpl(getIdList(), this);
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Dan Creswell <dan.creswell@gmail.com>
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27 }
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28
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29 private Object[] getIdList() {
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30 Object[] myIds = new Object[theIds.size()];
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
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31 theIds.toArray(myIds);
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32
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33 return myIds;
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34 }
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35
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Dan Creswell <dan.creswell@gmail.com>
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36 void insert(EntrySleeve aSleeve) {
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37 theIds.add(aSleeve.getOID());
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Dan Creswell <dan.creswell@gmail.com>
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38 }
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39
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40 void remove(EntrySleeve aSleeve) {
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41 theIds.remove(aSleeve.getOID());
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42 }
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43
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44 int getSize() {
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45 return theIds.size();
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Dan Creswell <dan.creswell@gmail.com>
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46 }
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47 }