Package org.jrdf.graph

Examples of org.jrdf.graph.Node.stringValue()

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                if (tuples != null) {
                    while (tuples.hasNext()) {
                        Map<String, Node> tuple = tuples.next();
                        Node variableValue = tuple.get(variable);
                        if (variableValue != null) {
                            res.add(variableValue.stringValue());
                        } else {
                            logger.error("Attribute query does not contain a result variable " + variable);
                            return res;
                        }
                    }
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                    while (tuples.hasNext()) {
                        Node parent = tuples.next().get("parent");
                        if (parent != null) {
                            if (parent.isURIReference()) {
                                try {
                                    PID parentPID = new PID(parent.stringValue());
                                    logger.debug("Found parent " + parentPID.toString());
                                    parentPIDs.add(parentPID.toString());
                                } catch (MalformedPIDException e) {
                                    logger.warn("parent/child relationship target is not a Fedora object" + parent.stringValue());
                                }
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                                try {
                                    PID parentPID = new PID(parent.stringValue());
                                    logger.debug("Found parent " + parentPID.toString());
                                    parentPIDs.add(parentPID.toString());
                                } catch (MalformedPIDException e) {
                                    logger.warn("parent/child relationship target is not a Fedora object" + parent.stringValue());
                                }
                            } else {
                                logger.warn("parent/child query result is not a Fedora object " + parent.stringValue());
                            }
                        } else {
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                                    parentPIDs.add(parentPID.toString());
                                } catch (MalformedPIDException e) {
                                    logger.warn("parent/child relationship target is not a Fedora object" + parent.stringValue());
                                }
                            } else {
                                logger.warn("parent/child query result is not a Fedora object " + parent.stringValue());
                            }
                        } else {
                            logger.error("parent/child tuple result did not contain parent variable");
                        }
                    }
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