graphdb/src/main/java/com/tinkerpop/blueprints/impls/orient/OrientBaseGraph.java
public OrientEdge getEdge(final Object id) {
    makeActive();

    if (null == id)
      throw ExceptionFactory.edgeIdCanNotBeNull();

    if (id instanceof OrientEdge)
      return (OrientEdge) id;
    else if (id instanceof ODocument)
      return new OrientEdge(this, (OIdentifiable) id);

    final OIdentifiable rec;
    if (id instanceof OIdentifiable)
      rec = (OIdentifiable) id;
    else {
      final String str = id.toString();

      int pos = str.indexOf("->");

      if (pos > -1) {
        // DUMMY EDGE: CREATE IT IN MEMORY
        final String from = str.substring(0, pos);
        final String to = str.substring(pos + 2);
        return getEdgeInstance(new ORecordId(from), new ORecordId(to), null);
      }

      try {
        rec = new ORecordId(str);
      } catch (IllegalArgumentException iae) {
        // orientdb throws IllegalArgumentException: Argument 'xxxx' is
        // not a RecordId in form of string. Format must be:
        // [#]<cluster-id>:<cluster-position>
        return null;
      }
    }

    final ODocument doc = rec.getRecord();
    if (doc == null)
      return null;

    final OClass cls = doc.getSchemaClass();
    if (cls != null) {
      if (cls.isVertexType())
        throw new IllegalArgumentException("Cannot retrieve an edge with the RID " + id + " because it is a vertex");

      if (!cls.isEdgeType())
        throw new IllegalArgumentException("Class '" + doc.getClassName() + "' is not an edge class");
    }

    return new OrientEdge(this, rec);
  }
public OrientEdge getEdge(final Object id) {
    makeActive();

    if (null == id)
      throw ExceptionFactory.edgeIdCanNotBeNull();

    if (id instanceof OrientEdge)
      return (OrientEdge) id;
    else if (id instanceof ODocument)
      return new OrientEdge(this, (OIdentifiable) id);

    final OIdentifiable rec;
    if (id instanceof OIdentifiable)
      rec = (OIdentifiable) id;
    else {
      final String str = id.toString();

      int pos = str.indexOf("->");

      if (pos > -1) {
        // DUMMY EDGE: CREATE IT IN MEMORY
        final String from = str.substring(0, pos);
        final String to = str.substring(pos + 2);
        return getEdgeInstance(new ORecordId(from), new ORecordId(to), null);
      }

      try {
        rec = new ORecordId(str);
      } catch (IllegalArgumentException iae) {
        // orientdb throws IllegalArgumentException: Argument 'xxxx' is
        // not a RecordId in form of string. Format must be:
        // [#]<cluster-id>:<cluster-position>
        return null;
      }
    }

    final ODocument doc = rec.getRecord();
    if (doc == null)
      return null;

    final OClass cls = doc.getSchemaClass();
    if (cls != null) {
      if (cls.isVertexType())
        throw new IllegalArgumentException("Cannot retrieve an edge with the RID " + id + " because it is a vertex");

      if (!cls.isEdgeType())
        throw new IllegalArgumentException("Class '" + doc.getClassName() + "' is not an edge class");
    }

    return new OrientEdge(this, rec);
  }
public OrientEdge getEdge ( final Object id ) { makeActive ( ) ; if ( null == id ) throw ExceptionFactory . edgeIdCanNotBeNull ( ) ; if ( id instanceof OrientEdge ) return ( OrientEdge ) id ; else if ( id instanceof ODocument ) return new OrientEdge ( this , ( OIdentifiable ) id ) ; final OIdentifiable rec ; if ( id instanceof OIdentifiable ) rec = ( OIdentifiable ) id ; else { final String str = id . toString ( ) ; int pos = str . indexOf ( "->" ) ; if ( pos > - 1 ) { // DUMMY EDGE: CREATE IT IN MEMORY final String from = str . substring ( 0 , pos ) ; final String to = str . substring ( pos + 2 ) ; return getEdgeInstance ( new ORecordId ( from ) , new ORecordId ( to ) , null ) ; } try { rec = new ORecordId ( str ) ; } catch ( IllegalArgumentException iae ) { // orientdb throws IllegalArgumentException: Argument 'xxxx' is // not a RecordId in form of string. Format must be: // [#]<cluster-id>:<cluster-position> return null ; } } final ODocument doc = rec . getRecord ( ) ; if ( doc == null ) return null ; final OClass cls = doc . getSchemaClass ( ) ; if ( cls != null ) { if ( cls . isVertexType ( ) ) throw new IllegalArgumentException ( "Cannot retrieve an edge with the RID " + id + " because it is a vertex" ) ; if ( ! cls . isEdgeType ( ) ) throw new IllegalArgumentException ( "Class '" + doc . getClassName ( ) + "' is not an edge class" ) ; } return new OrientEdge ( this , rec ) ; }
Returns a edge by an ID.

@param id Can by a String, ODocument or an OIdentifiable object.
Returns a edge by an ID .