Reinstate FixedSizeSortedMap superclass to avoid binary incompatibility

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/collections/trunk@131771 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Stephen Colebourne 2004-06-03 22:26:52 +00:00
parent 0684127337
commit f98c8827f6
3 changed files with 79 additions and 13 deletions

View File

@ -15,9 +15,20 @@
*/ */
package org.apache.commons.collections.map; package org.apache.commons.collections.map;
import java.util.Comparator; import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.Collection;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.SortedMap; import java.util.SortedMap;
import org.apache.commons.collections.BoundedMap;
import org.apache.commons.collections.collection.UnmodifiableCollection;
import org.apache.commons.collections.set.UnmodifiableSet;
/** /**
* Decorates another <code>SortedMap</code> to fix the size blocking add/remove. * Decorates another <code>SortedMap</code> to fix the size blocking add/remove.
* <p> * <p>
@ -34,14 +45,17 @@ import java.util.SortedMap;
* This class is Serializable from Commons Collections 3.1. * This class is Serializable from Commons Collections 3.1.
* *
* @since Commons Collections 3.0 * @since Commons Collections 3.0
* @version $Revision: 1.7 $ $Date: 2004/04/09 10:36:01 $ * @version $Revision: 1.8 $ $Date: 2004/06/03 22:26:52 $
* *
* @author Stephen Colebourne * @author Stephen Colebourne
* @author Paul Jack * @author Paul Jack
*/ */
public class FixedSizeSortedMap public class FixedSizeSortedMap
extends FixedSizeMap extends AbstractSortedMapDecorator
implements SortedMap { implements SortedMap, BoundedMap, Serializable {
/** Serialization version */
private static final long serialVersionUID = 3126019624511683653L;
/** /**
* Factory method to create a fixed size sorted map. * Factory method to create a fixed size sorted map.
@ -64,7 +78,6 @@ public class FixedSizeSortedMap
super(map); super(map);
} }
//-----------------------------------------------------------------------
/** /**
* Gets the map being decorated. * Gets the map being decorated.
* *
@ -74,6 +87,63 @@ public class FixedSizeSortedMap
return (SortedMap) map; return (SortedMap) map;
} }
//-----------------------------------------------------------------------
/**
* Write the map out using a custom routine.
*/
private void writeObject(ObjectOutputStream out) throws IOException {
out.defaultWriteObject();
out.writeObject(map);
}
/**
* Read the map in using a custom routine.
*/
private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
in.defaultReadObject();
map = (Map) in.readObject();
}
//-----------------------------------------------------------------------
public Object put(Object key, Object value) {
if (map.containsKey(key) == false) {
throw new IllegalArgumentException("Cannot put new key/value pair - Map is fixed size");
}
return map.put(key, value);
}
public void putAll(Map mapToCopy) {
for (Iterator it = mapToCopy.keySet().iterator(); it.hasNext(); ) {
if (mapToCopy.containsKey(it.next()) == false) {
throw new IllegalArgumentException("Cannot put new key/value pair - Map is fixed size");
}
}
map.putAll(mapToCopy);
}
public void clear() {
throw new UnsupportedOperationException("Map is fixed size");
}
public Object remove(Object key) {
throw new UnsupportedOperationException("Map is fixed size");
}
public Set entrySet() {
Set set = map.entrySet();
return UnmodifiableSet.decorate(set);
}
public Set keySet() {
Set set = map.keySet();
return UnmodifiableSet.decorate(set);
}
public Collection values() {
Collection coll = map.values();
return UnmodifiableCollection.decorate(coll);
}
//----------------------------------------------------------------------- //-----------------------------------------------------------------------
public SortedMap subMap(Object fromKey, Object toKey) { public SortedMap subMap(Object fromKey, Object toKey) {
SortedMap map = getSortedMap().subMap(fromKey, toKey); SortedMap map = getSortedMap().subMap(fromKey, toKey);
@ -90,16 +160,12 @@ public class FixedSizeSortedMap
return new FixedSizeSortedMap(map); return new FixedSizeSortedMap(map);
} }
public Comparator comparator() { public boolean isFull() {
return getSortedMap().comparator(); return true;
} }
public Object firstKey() { public int maxSize() {
return getSortedMap().firstKey(); return size();
}
public Object lastKey() {
return getSortedMap().lastKey();
} }
} }