[OrientDb] using the index java api

gistfile1.java

//from: https://groups.google.com/forum/?fromgroups=#!searchin/orient-database/OIdentifiable/orient-database/fwAmlTJy4-c/ne3wpgbSJOEJ

public static ODocument getDoc(String name){
	OGraphDatabase db = OGraphDatabase ((ODatabaseRecordTx)ODatabaseRecordThreadLocal.INSTANCE.get());
	OIndex idx = db.getMetadata().getIndexManager().getIndex("doc.name"); //<<---- the index name
	ORecordId record = (ORecordId) idx.get( name );
	return (ODocument) record.getRecord();
}