dive4elements/river: backend/src/main/java/org/dive4elements/river/importer/ValueKey.java annotate

annotate backend/src/main/java/org/dive4elements/river/importer/ValueKey.java @ 5838:5aa05a7a34b7

Rename modules to more fitting names.

author	Sascha L. Teichmann <teichmann@intevation.de>
date	Thu, 25 Apr 2013 15:23:37 +0200
parents	flys-backend/src/main/java/org/dive4elements/river/importer/ValueKey.java@18619c1e7c2a
children	4dd33b86dc61

rev	line source
5829 18619c1e7c2a Repaired internal references. Sascha L. Teichmann <teichmann@intevation.de> parents: 5828 diff changeset	1 package org.dive4elements.river.importer;
501 04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	2
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	3 import java.math.BigDecimal;
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	4
503 bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	5 import java.util.Comparator;
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	6
501 04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	7 public class ValueKey
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	8 {
503 bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	9 public static final double EPSILON = 1e-6;
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	10
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	11 public static final Comparator<ValueKey> EPSILON_COMPARATOR =
771 6dc847194625 Removed trailing whitespace. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 503 diff changeset	12 new Comparator<ValueKey>()
503 bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	13 {
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	14 public int compare(ValueKey x, ValueKey y) {
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	15 int cmp = ValueKey.compare(x.a, y.a);
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	16 if (cmp != 0) return cmp;
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	17 return ValueKey.compare(x.b, y.b);
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	18 }
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	19 };
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	20
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	21 public static int compare(BigDecimal a, BigDecimal b) {
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	22 if (a == null && b == null) return 0;
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	23 if (a != null && b == null) return +1;
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	24 if (a == null && b != null) return -1;
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	25
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	26 double diff = a.doubleValue() - b.doubleValue();
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	27 if (diff < -EPSILON) return -1;
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	28 return diff > EPSILON ? +1 : 0;
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	29 }
bcc18293a547 Importer: Added unsharp lookup to avoid numerical problems. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 501 diff changeset	30
501 04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	31 protected BigDecimal a;
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	32 protected BigDecimal b;
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	33
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	34 public ValueKey() {
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	35 }
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	36
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	37 public ValueKey(BigDecimal a, BigDecimal b) {
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	38 this.a = a;
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	39 this.b = b;
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	40 }
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	41
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	42 @Override
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	43 public int hashCode() {
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	44 return ((a != null ? a.hashCode() : 0) << 16)
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	45 \| (b != null ? b.hashCode() : 0);
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	46 }
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	47
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	48 @Override
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	49 public boolean equals(Object other) {
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	50 if (!(other instanceof ValueKey)) {
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	51 return false;
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	52 }
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	53 ValueKey o = (ValueKey)other;
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	54 return !(
771 6dc847194625 Removed trailing whitespace. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 503 diff changeset	55 (a == null && o.a != null)
6dc847194625 Removed trailing whitespace. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 503 diff changeset	56 \|\| (a != null && o.a == null)
6dc847194625 Removed trailing whitespace. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 503 diff changeset	57 \|\| (a != null && !a.equals(o.a))
6dc847194625 Removed trailing whitespace. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 503 diff changeset	58 \|\| (b == null && o.b != null)
501 04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	59 \|\| (b != null && o.b == null)
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	60 \|\| (b != null && !b.equals(o.b)));
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	61 }
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	62 }
04d449f7f0c9 Importer: Change caching strategy not to cause OOM any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	63 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/importer/ValueKey.java @ 5838:5aa05a7a34b7