Examples of org.apache.cayenne.map.Relationship

org.apache.cayenne.map.Relationship
Defines a relationship between two entities. In a DataMap graph relationships represent "arcs" connecting entity "nodes". Relationships are directional, i.e. they have a notion of source and target entity. This makes DataMap a "digraph".

    public void arcDeleted(Object nodeId, Object targetNodeId, Object arcId) {
        DataObject source = findObject(nodeId);


        // find whether this is to-one or to-many
        ObjEntity sourceEntity = context.getEntityResolver().lookupObjEntity(source);
        Relationship relationship = sourceEntity.getRelationship(arcId.toString());


        DataObject target = findObject(targetNodeId);
        if (relationship.isToMany()) {
            source.removeToManyTarget(relationship.getName(), target, false);
        }
        else {
            source.setToOneTarget(relationship.getName(), null, false);
        }
    }

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                EJBQLJoin join = new EJBQLOuterJoin(-1);
                join.jjtAddChild(path, 0);
                join.jjtAddChild(joinId, 1);
                getJoinAppender().visitOuterJoin(join);


                Relationship lastRelationship = currentEntity
                        .getRelationship(lastPathComponent);
                ObjEntity targetEntity = (ObjEntity) lastRelationship.getTargetEntity();


                this.lastAlias = context.getTableAlias(fullPath, targetEntity
                        .getDbEntityName());
            }

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            return false;
        }


        Iterator it = anObjEntity.getRelationships().iterator();
        while (it.hasNext()) {
            Relationship r = (Relationship) it.next();
            if (r.isToMany()) {
                return true;
            }
        }


        return false;

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            return false;
        }


        Iterator it = anObjEntity.getDeclaredRelationships().iterator();
        while (it.hasNext()) {
            Relationship r = (Relationship) it.next();
            if (r.isToMany()) {
                return true;
            }
        }


        return false;

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            return false;
        }


        Iterator it = anObjEntity.getRelationships().iterator();
        while (it.hasNext()) {
            Relationship r = (Relationship) it.next();
            if (false == r.isToMany()) {
                return true;
            }
        }


        return false;

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            return false;
        }


        Iterator it = anObjEntity.getDeclaredRelationships().iterator();
        while (it.hasNext()) {
            Relationship r = (Relationship) it.next();
            if (!r.isToMany()) {
                return true;
            }
        }


        return false;

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            return false;
        }
        
        Iterator it = entity.getDeclaredRelationships().iterator();
        while(it.hasNext()) {
            Relationship r = (Relationship) it.next();
            if(r.isToMany()) {
                return true;
            }
        }


        return false;

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            return false;
        }
        
        Iterator it = entity.getRelationships().iterator();
        while(it.hasNext()) {
            Relationship r = (Relationship) it.next();
            if(r.isToMany()) {
                return true;
            }
        }


        return false;

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            return false;
        }
        
        Iterator it = entity.getDeclaredRelationships().iterator();
        while(it.hasNext()) {
            Relationship r = (Relationship) it.next();
            if(r.isToMany()) {
                return true;
            }
        }


        return false;

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            return false;
        }
        
        Iterator it = entity.getRelationships().iterator();
        while(it.hasNext()) {
            Relationship r = (Relationship) it.next();
            if(r.isToMany()) {
                return true;
            }
        }


        return false;

View Full Code Here

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