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DATAKV-99 - Add KeyValueIterator.

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We now offer the possibility to iterate through available key/value pairs via a KeyValueIterator. The default implementation for java.util.Map based Adapters is a ForwardingKeyValueIterator delegating to the underlying entrySet iterator.

Original pull request: #7.
This commit is contained in:
Christoph Strobl
2015-05-07 14:44:55 +02:00
committed by Thomas Darimont
parent aa3204e464
commit 16dc4b5e7d
8 changed files with 372 additions and 1 deletions
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12
src/main/java/org/springframework/data/map/MapKeyValueAdapter.java
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@@ -22,7 +22,9 @@ import java.util.concurrent.ConcurrentHashMap;
import org.springframework.core.CollectionFactory;
import org.springframework.data.keyvalue.core.AbstractKeyValueAdapter;
import org.springframework.data.keyvalue.core.ForwardingKeyValueIterator;
import org.springframework.data.keyvalue.core.KeyValueAdapter;
import org.springframework.data.keyvalue.core.KeyValueIterator;
import org.springframework.util.Assert;
import org.springframework.util.ClassUtils;
@@ -133,6 +135,15 @@ public class MapKeyValueAdapter extends AbstractKeyValueAdapter {
return getKeySpaceMap(keyspace).values();
}
/*
* (non-Javadoc)
* @see org.springframework.data.keyvalue.core.KeyValueAdapter#entries(java.io.Serializable)
*/
@Override
public KeyValueIterator<Serializable, ?> entries(Serializable keyspace) {
return new ForwardingKeyValueIterator<Serializable, Object>(getKeySpaceMap(keyspace).entrySet().iterator());
}
/*
* (non-Javadoc)
* @see org.springframework.data.keyvalue.core.KeyValueAdapter#deleteAllOf(java.io.Serializable)
@@ -194,4 +205,5 @@ public class MapKeyValueAdapter extends AbstractKeyValueAdapter {
private void addMapForKeySpace(Serializable keyspace) {
store.put(keyspace, CollectionFactory.<Serializable, Object> createMap(keySpaceMapType, 1000));
}
}