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Code Issues Releases Wiki Activity

add handler if neighborhood tree is null

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oblonski 2015-03-06 16:15:12 +01:00
parent 5648630b0a
commit 708400a34a
3 changed files with 32 additions and 0 deletions
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5
jsprit-core/pom.xml
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@ -82,6 +82,11 @@
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-math3</artifactId>
<version>3.4</version>
</dependency>
</dependencies>

11
jsprit-core/src/main/java/jsprit/core/algorithm/ruin/JobNeighborhoodsImpl.java
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@ -31,6 +31,17 @@ class JobNeighborhoodsImpl implements JobNeighborhoods {
public Iterator<Job> getNearestNeighborsIterator(int nNeighbors, Job neighborTo){
TreeSet<ReferencedJob> tree = distanceNodeTree.get(neighborTo.getId());
if(tree == null) return new Iterator<Job>() {
@Override
public boolean hasNext() {
return false;
}
@Override
public Job next() {
return null;
}
};
Iterator<ReferencedJob> descendingIterator = tree.iterator();
return new NearestNeighborhoodIterator(descendingIterator, nNeighbors);
}

16
jsprit-core/src/main/java/jsprit/core/algorithm/ruin/JobNeighborhoodsImplWithCapRestriction.java
View file

@ -32,8 +32,24 @@ class JobNeighborhoodsImplWithCapRestriction implements JobNeighborhoods {
logger.info("intialise " + this);
}
/*
TODO: obviously nearestNeighbor does not work with a single customer
*/
public Iterator<Job> getNearestNeighborsIterator(int nNeighbors, Job neighborTo){
TreeSet<ReferencedJob> tree = distanceNodeTree.get(neighborTo.getId());
if(tree == null) return new Iterator<Job>() {
@Override
public boolean hasNext() {
return false;
}
@Override
public Job next() {
return null;
}
};
Iterator<ReferencedJob> descendingIterator = tree.iterator();
return new NearestNeighborhoodIterator(descendingIterator, nNeighbors);
}