InvalidQueryException on XPath Query with Numeric Node Name

Problem, Question

You receive the following exception when you attempt to do an xpath query which contains a node that has a name beginning with a digit.

Caused by: javax.jcr.query.InvalidQueryException: Parse error: data is not a RelationQueryNode
 at org.apache.jackrabbit.core.query.xpath.XPathQueryBuilder.visit(XPathQueryBuilder.java:504)
 at org.apache.jackrabbit.core.query.xpath.SimpleNode.jjtAccept(SimpleNode.java:80)
 at org.apache.jackrabbit.core.query.xpath.SimpleNode.childrenAccept(SimpleNode.java:89)
 at org.apache.jackrabbit.core.query.xpath.XPathQueryBuilder.visit(XPathQueryBuilder.java:551)
 at org.apache.jackrabbit.core.query.xpath.SimpleNode.jjtAccept(SimpleNode.java:80)
 at org.apache.jackrabbit.core.query.xpath.SimpleNode.childrenAccept(SimpleNode.java:89)
 at org.apache.jackrabbit.core.query.xpath.XPathQueryBuilder.visit(XPathQueryBuilder.java:551)
 at org.apache.jackrabbit.core.query.xpath.SimpleNode.jjtAccept(SimpleNode.java:80)
 at org.apache.jackrabbit.core.query.xpath.SimpleNode.childrenAccept(SimpleNode.java:89)
 at org.apache.jackrabbit.core.query.xpath.XPathQueryBuilder.visit(XPathQueryBuilder.java:551)
 at org.apache.jackrabbit.core.query.xpath.SimpleNode.jjtAccept(SimpleNode.java:80)
 at org.apache.jackrabbit.core.query.xpath.SimpleNode.childrenAccept(SimpleNode.java:89)
 at org.apache.jackrabbit.core.query.xpath.XPathQueryBuilder.visit(XPathQueryBuilder.java:551)
 at org.apache.jackrabbit.core.query.xpath.SimpleNode.jjtAccept(SimpleNode.java:80)
 at org.apache.jackrabbit.core.query.xpath.SimpleNode.childrenAccept(SimpleNode.java:89)
 at org.apache.jackrabbit.core.query.xpath.XPathQueryBuilder.visit(XPathQueryBuilder.java:551)
 at org.apache.jackrabbit.core.query.xpath.SimpleNode.jjtAccept(SimpleNode.java:80)
 at org.apache.jackrabbit.core.query.xpath.SimpleNode.childrenAccept(SimpleNode.java:89)
 at org.apache.jackrabbit.core.query.xpath.XPathQueryBuilder.visit(XPathQueryBuilder.java:551)
 at org.apache.jackrabbit.core.query.xpath.SimpleNode.jjtAccept(SimpleNode.java:80)
 at org.apache.jackrabbit.core.query.xpath.SimpleNode.childrenAccept(SimpleNode.java:89)
 at org.apache.jackrabbit.core.query.xpath.XPathQueryBuilder.visit(XPathQueryBuilder.java:551)
 at org.apache.jackrabbit.core.query.xpath.SimpleNode.jjtAccept(SimpleNode.java:80)
 at org.apache.jackrabbit.core.query.xpath.SimpleNode.childrenAccept(SimpleNode.java:89)
 at org.apache.jackrabbit.core.query.xpath.XPathQueryBuilder.createPathQueryNode(XPathQueryBuilder.java:734)
 at org.apache.jackrabbit.core.query.xpath.XPathQueryBuilder.visit(XPathQueryBuilder.java:372)
 at org.apache.jackrabbit.core.query.xpath.SimpleNode.jjtAccept(SimpleNode.java:80)
 at org.apache.jackrabbit.core.query.xpath.XPathQueryBuilder.<init>(XPathQueryBuilder.java:297)
 at org.apache.jackrabbit.core.query.xpath.XPathQueryBuilder.createQuery(XPathQueryBuilder.java:331)
 at org.apache.jackrabbit.core.query.xpath.QueryBuilder.createQueryTree(QueryBuilder.java:39)
 at org.apache.jackrabbit.core.query.QueryParser.parse(QueryParser.java:57)
 at org.apache.jackrabbit.core.query.lucene.QueryImpl.<init>(QueryImpl.java:91)
 at com.day.crx.query.lucene.CRXExecutableQueryImpl.<init>(CRXExecutableQueryImpl.java:64)
 at com.day.crx.query.lucene.LuceneHandler.createExecutableQuery(LuceneHandler.java:381)
 at org.apache.jackrabbit.core.query.QueryImpl.init(QueryImpl.java:127)
 at org.apache.jackrabbit.core.SearchManager.createQuery(SearchManager.java:305)
 at org.apache.jackrabbit.core.query.QueryManagerImpl.createQuery(QueryManagerImpl.java:94)

Resolution, Answer

Use this method to encode the numeric node's name using the following method: org.apache.jackrabbit.util.ISO9075.encode(name)
Or alternatively use JCR SQL instead of XPath.

Applies to

CRX 1.x

References

• See http://issues.apache.org/jira/browse/JCR-579 "Digit" name support missing in XPath AQT parser. - ASF JIRA]