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Fixed issue 100 by adding support for deserialization of collections of elements that do not implement Comparable.

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This commit is contained in:
Inderjeet Singh 2009-03-12 01:59:48 +00:00
parent 3d1f7251c1
commit a595032a90
2 changed files with 37 additions and 7 deletions
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15
gson/src/main/java/com/google/gson/DefaultTypeAdapters.java
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@ -31,6 +31,7 @@ import java.util.Calendar;
import java.util.Collection;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
@ -79,7 +80,7 @@ final class DefaultTypeAdapters {
private static final StringTypeAdapter STRING_TYPE_ADAPTER = new StringTypeAdapter();
private static final PropertiesCreator PROPERTIES_CREATOR = new PropertiesCreator();
private static final TreeSetCreator TREE_SET_CREATOR = new TreeSetCreator();
private static final HashSetCreator HASH_SET_CREATOR = new HashSetCreator();
private static final GregorianCalendarTypeAdapter GREGORIAN_CALENDAR_TYPE_ADAPTER =
new GregorianCalendarTypeAdapter();
@ -178,8 +179,8 @@ final class DefaultTypeAdapters {
map.register(List.class, COLLECTION_TYPE_ADAPTER);
map.register(Queue.class, COLLECTION_TYPE_ADAPTER);
map.register(Set.class, TREE_SET_CREATOR);
map.register(SortedSet.class, TREE_SET_CREATOR);
map.register(Set.class, HASH_SET_CREATOR);
map.register(SortedSet.class, HASH_SET_CREATOR);
map.register(Properties.class, PROPERTIES_CREATOR);
map.makeUnmodifiable();
return map;
@ -779,13 +780,13 @@ final class DefaultTypeAdapters {
}
}
private static class TreeSetCreator implements InstanceCreator<TreeSet<?>> {
public TreeSet<?> createInstance(Type type) {
return new TreeSet<Object>();
private static class HashSetCreator implements InstanceCreator<HashSet<?>> {
public HashSet<?> createInstance(Type type) {
return new HashSet<Object>();
}
@Override
public String toString() {
return TreeSetCreator.class.getSimpleName();
return HashSetCreator.class.getSimpleName();
}
}
}

29
gson/src/test/java/com/google/gson/functional/CollectionTest.java
View File

@ -30,10 +30,12 @@ import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Queue;
import java.util.Set;
/**
* Functional tests for Json serialization and deserialization of collections.
@ -315,4 +317,31 @@ public class CollectionTest extends TestCase {
return collection;
}
}
private static class Entry {
int value;
Entry() {
this(10);
}
Entry(int value) {
this.value = value;
}
}
public void testSetSerialization() {
Set<Entry> set = new HashSet<Entry>();
set.add(new Entry(1));
set.add(new Entry(2));
String json = gson.toJson(set);
assertTrue(json.contains("1"));
assertTrue(json.contains("2"));
}
public void testSetDeserialization() {
String json = "[{value:1},{value:2}]";
Type type = new TypeToken<Set<Entry>>() {}.getType();
Set<Entry> set = gson.fromJson(json, type);
assertEquals(2, set.size());
for (Entry entry : set) {
assertTrue(entry.value == 1 || entry.value == 2);
}
}
}