Examples of javax.xml.xquery.XQException

javax.xml.xquery.XQException
An exception that provides information on XQJ, XQuery or other errors reported by an XQJ implementation.

Each XQException provides several kinds of information:
- a string describing the error. This is used as the Java Exception message, available via the method getMessage.
- the cause of the error. This is used as the Java Exception cause, available via the method getCause.
- the vendor code identifying the error. Available via the method getVendorCode. Refer to the vendor documentation which specific codes can be returned.
- a chain of XQException objects. If more than one error occurred the exceptions are referenced via this chain.
Note that XQException has a subclass {@link XQQueryException XQQueryException} providing more detailedinformation about errors that occurred during the processing of a query. An implementation throws a base XQException when an error occurs in the XQJ implementation. Further, implementations are encouraged to use the more detailed XQQueryException in case of an error reported by the XQuery engine.

It is possible that during the processing of a query that one or more errors could occur, each with their own potential causal relationship. This means that when an XQJ application catches an XQException, there is a possibility that there may be additional XQException objects chained to the original thrown XQException. To access the additional chained XQException objects, an application would recursively invoke getNextException until a null value is returned.

An XQException may have a causal relationship, which consists of one or more Throwable instances which caused the XQException to be thrown. The application may recursively call the method getCause, until a null value is returned, to navigate the chain of causes.

            type = ((DocumentNodeTest)type).getElementTest();
        }
        if (type instanceof NodeTest) {
            if ((((NodeTest)type).getNodeKindMask() &
                    (1<<Type.DOCUMENT | 1<<Type.TEXT | 1<<Type.COMMENT | 1<<Type.PROCESSING_INSTRUCTION | 1<<Type.NAMESPACE)) != 0) {
                throw new XQException("getTypeName() failed: itemType is not a document, element, or attribute test");
            }
            SchemaType t = ((NodeTest)type).getContentType();
            if (t != null) {
                int fp = ((NodeTest)type).getContentType().getFingerprint();
                NamePool pool = config.getNamePool();
                String uri = pool.getURI(fp);
                String local = pool.getLocalName(fp);
                return new QName(uri, local);
            }
        }
        throw new XQException("getTypeName() failed: itemType is not a document, element, or attribute test");
    }

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                                return new Long(((Int64Value)p).longValue());
                            case StandardNames.XS_SHORT:
                            case StandardNames.XS_UNSIGNED_BYTE:
                                return new Short((short)((Int64Value)p).longValue());
                            default:
                                throw new XQException("Unrecognized integer subtype " + sub);
                        }
                    }
                case StandardNames.XS_QNAME:
                    return ((QualifiedNameValue)p).toJaxpQName();
                case StandardNames.XS_STRING:
                case StandardNames.XS_UNTYPED_ATOMIC:
                    return p.getStringValue();
                case StandardNames.XS_TIME:
                    return new SaxonXMLGregorianCalendar((CalendarValue)p);
                case StandardNames.XS_DAY_TIME_DURATION:
                    return new SaxonDuration((DurationValue)p);
                case StandardNames.XS_YEAR_MONTH_DURATION:
                    return new SaxonDuration((DurationValue)p);
                default:
                    throw new XQException("unsupported type");
            }
        } else {
            return NodeOverNodeInfo.wrap((NodeInfo)item);
        }
    }

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                return node;
            } else {
                throw new XPathException("Java object cannot be converted to an XQuery value");
            }
        } catch (XPathException e) {
            XQException xqe = new XQException(e.getMessage());
            xqe.initCause(e);
            throw xqe;
        }
    }

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    public Item convertToItem(Object value, XQItemType type) throws XQException {
        if (((SaxonXQItemType)type).getSaxonItemType() instanceof ExternalObjectType) {
            return new ObjectValue(value, ((ExternalObjectType)((SaxonXQItemType)type).getSaxonItemType()));
        } else {
            throw new XQException("Supplied Java object cannot be converted to an XQItem");
        }
    }

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        //
    }


    public void executeCommand(Reader command) throws XQException {
        checkNotClosed();
        throw new XQException("Saxon does not recognize any non-XQuery commands");
    }

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        throw new XQException("Saxon does not recognize any non-XQuery commands");
    }


    public void executeCommand(String command) throws XQException {
        checkNotClosed();
        throw new XQException("Saxon does not recognize any non-XQuery commands");
    }

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            StaticQueryContext env = sqc.getSaxonStaticQueryContext();
            XQueryExpression exp = env.compileQuery(query, null);
            SaxonXQPreparedExpression pe = new SaxonXQPreparedExpression(connection, exp, sqc, context);
            return pe.executeQuery();
        } catch (XPathException e) {
            XQException xqe = new XQException(e.getMessage());
            xqe.initCause(e);
            throw xqe;
        } catch (IOException e) {
            XQException xqe = new XQException(e.getMessage());
            xqe.initCause(e);
            throw xqe;
        }
    }

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            StaticQueryContext env = sqc.getSaxonStaticQueryContext();
            XQueryExpression exp = env.compileQuery(query);
            SaxonXQPreparedExpression pe = new SaxonXQPreparedExpression(connection, exp, sqc, context);
            return pe.executeQuery();
        } catch (XPathException e) {
            XQException xqe = new XQException(e.getMessage());
            xqe.initCause(e);
            throw xqe;
        } catch (IOException e) {
            XQException xqe = new XQException(e.getMessage());
            xqe.initCause(e);
            throw xqe;
        }
    }

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            SaxonXQPreparedExpression pe = new SaxonXQPreparedExpression(connection, exp, sqc, context);
            XQResultSequence result = pe.executeQuery();
            ((Closable)result).setClosableContainer(this);
            return result;
        } catch (XPathException e) {
            XQException xqe = new XQException(e.getMessage());
            xqe.initCause(e);
            throw xqe;
        }
    }

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     * @throws XQException The Saxon implementation of this method always throws
     * an XQException, indicating that Saxon does not support connection to a JDBC data source.
     */


    public XQConnection getConnection(Connection con) throws XQException {
        throw new XQException("Saxon cannot connect to a SQL data source");
    }

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Related Classes of javax.xml.xquery.XQException

net.sf.saxon.xqj.Closable

net.sf.saxon.xqj.SaxonXQDataSource

net.sf.saxon.xqj.SaxonXQExpression

net.sf.saxon.xqj.SaxonXQExpressionContext

net.sf.saxon.xqj.SaxonXQItem

net.sf.saxon.xqj.SaxonXQItemType

net.sf.saxon.xqj.SaxonXQStaticContext

net.sf.saxon.xqj.StandardObjectConverter

org.pdf4j.saxon.xqj.Closable

org.pdf4j.saxon.xqj.SaxonXQDataSource

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