Spring/spring-data-neo4j
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more efficient support for mutating operations of managed relationship set

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This commit is contained in:
Michael Hunger
2011-04-28 11:16:22 +02:00
parent 373b446332
commit e2f749db91
2 changed files with 65 additions and 1 deletions
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35
spring-data-neo4j/src/main/java/org/springframework/data/graph/neo4j/fieldaccess/ManagedFieldAccessorSet.java
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@@ -24,11 +24,11 @@ import org.springframework.data.graph.neo4j.support.DoReturn;
import java.lang.reflect.Field;
import java.util.AbstractSet;
import java.util.Collection;
import java.util.Iterator;
import java.util.Set;
/**
* TODO handle all mutating methods
* @param <T>
*/
public class ManagedFieldAccessorSet<ENTITY,T> extends AbstractSet<T> {
@@ -99,4 +99,37 @@ public class ManagedFieldAccessorSet<ENTITY,T> extends AbstractSet<T> {
if (res) update();
return res;
}
@Override
public boolean removeAll(Collection<?> c) {
if (delegate.removeAll(c)) {
update();
return true;
}
return false;
}
@Override
public boolean remove(Object o) {
if (delegate.remove(o)) {
update();
return true;
}
return false;
}
@Override
public boolean retainAll(Collection<?> c) {
if (delegate.retainAll(c)) {
update();
return true;
}
return false;
}
@Override
public void clear() {
delegate.clear();
update();
}
}

31
spring-data-neo4j/src/test/java/org/springframework/data/graph/neo4j/support/NodeEntityRelationshipTest.java
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@@ -181,6 +181,37 @@ public class NodeEntityRelationshipTest {
group.getPersons().remove(david);
assertEquals(Collections.singleton(michael), group.getPersons());
}
@Test
@Transactional
public void testRemoveAllFromOneToManyRelationship() {
Person michael = persistedPerson("Michael", 35);
Person david = persistedPerson("David", 25);
Group group = new Group().persist();
group.setPersons(new HashSet<Person>(Arrays.asList(michael, david)));
group.getPersons().removeAll(Collections.singleton(david));
assertEquals(Collections.singleton(michael), group.getPersons());
}
@Test
@Transactional
public void testRetainAllFromOneToManyRelationship() {
Person michael = persistedPerson("Michael", 35);
Person david = persistedPerson("David", 25);
Group group = new Group().persist();
group.setPersons(new HashSet<Person>(Arrays.asList(michael, david)));
group.getPersons().retainAll(Collections.singleton(david));
assertEquals(Collections.singleton(david), group.getPersons());
}
@Test
@Transactional
public void testClearFromOneToManyRelationship() {
Person michael = persistedPerson("Michael", 35);
Person david = persistedPerson("David", 25);
Group group = new Group().persist();
group.setPersons(new HashSet<Person>(Arrays.asList(michael, david)));
group.getPersons().clear();
assertEquals(Collections.<Person>emptySet(), group.getPersons());
}
@Test
@Transactional