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[Minor] Added exception when adding a resource which already exists

This commit is contained in:
Robert von Burg 2014-03-29 02:07:05 +01:00
parent 54375f1b8d
commit 86105eaba2
1 changed files with 15 additions and 1 deletions
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16
src/main/java/li/strolch/persistence/inmemory/InMemoryDao.java
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@ -1,5 +1,6 @@
package li.strolch.persistence.inmemory;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
@ -10,6 +11,7 @@ import java.util.Set;
import li.strolch.model.StrolchElement;
import li.strolch.persistence.api.StrolchDao;
import li.strolch.persistence.api.StrolchPersistenceException;
public class InMemoryDao<T extends StrolchElement> implements StrolchDao<T> {
@ -101,6 +103,12 @@ public class InMemoryDao<T extends StrolchElement> implements StrolchDao<T> {
this.elementMap.put(element.getType(), byType);
}
if (byType.containsKey(element.getId())) {
String msg = "An element already exists with the id {0}. Elements of the same class must always have a unique id, regardless of their type!"; //$NON-NLS-1$
msg = MessageFormat.format(msg, element.getId());
throw new StrolchPersistenceException(msg);
}
byType.put(element.getId(), element);
}
@ -113,7 +121,13 @@ public class InMemoryDao<T extends StrolchElement> implements StrolchDao<T> {
@Override
public void update(T element) {
save(element);
Map<String, T> byType = this.elementMap.get(element.getType());
if (byType == null) {
byType = new HashMap<>();
this.elementMap.put(element.getType(), byType);
}
byType.put(element.getId(), element);
}
@Override