package er.neo4jadaptor.ersatz.neo4j;
import java.util.Date;
import com.webobjects.eoaccess.EOAttribute;
import com.webobjects.foundation.NSTimestamp;
import er.neo4jadaptor.ersatz.Translator;
import er.neo4jadaptor.storage.neo4j.NodeStore;
/**
* Encodes {@link java.util.Date} types as {@link java.lang.Long} values being number of milliseconds in the original date.
*
* @author Jedrzej Sobanski
*/
public class Neo4JTranslator implements Translator {
public static final Neo4JTranslator instance = new Neo4JTranslator();
private Neo4JTranslator() {
}
public Object fromNeutralValue(Object value, EOAttribute att) {
if (value instanceof Date) {
Date date = (Date) value;
return date.getTime();
} else if (value instanceof NodeStore.NodeNumber) {
return ((Number) value).longValue();
} else {
return value;
}
}
private static final String NSTIMESTAMP_CANONICAL_CLASS_NAME = NSTimestamp.class.getCanonicalName();
private static final String INTEGER_CANONICAL_CLASS_NAME = Integer.class.getCanonicalName();
public Object toNeutralValue(Object value, EOAttribute att) {
if (value == null) {
return null;
}
if (att != null) {
final String typeClassName = att.valueTypeClassName();
if (NSTIMESTAMP_CANONICAL_CLASS_NAME.equals(typeClassName)) {
long l = (Long) value;
return new NSTimestamp(l);
} else if (INTEGER_CANONICAL_CLASS_NAME.equals(typeClassName)) {
return ((Number) value).intValue();
}
}
return value;
}
}