Java code for validating xml against dtd
This Validator could be used to determine if when marshalled a graph of objects would produce valid XML. Error Handler Wrapper.error(Error Handler Wrapper.java:131) at org.apache.xerces.Since JAXB 1.0 had standard interfaces backed by vendor specific implementation classes it was easy for vendors to code generate the necessary validation logic. Xml Root Element; @Xml Root Element public class Customer In this example we will create an instance of Customer that would produce an XML document that does not conform to our XML schema. XMLError Reporter.report Error(XMLError Reporter.java:384) at org.apache.xerces. XMLError Reporter.report Error(XMLError Reporter.java:318) at org.apache.xerces.xs. XMLSchema Validator$XSIError Reporter.report Error(XMLSchema Validator.java:417) at org.apache.xerces.xs. This provides a useful mechanism to ignore validation constraints. SAXParse Exception: cvc-max Length-valid: Value 'Jane Doe' with length = '8' is not facet-valid with respect to max Length '5' for type 'string With Max Size5'. Error Handler Wrapper.create SAXParse Exception(Error Handler Wrapper.java:195) at org.apache.xerces. If you re-throw the exception then parsing stops, and if you swallow the exception parsing continues.
As for DTD validation to find little on the Internet, I would like to explain briefly how this is possible by simply using Java resources. An external component has delivered a XHTML file, which should have been “xhtml1-strict” according to the W3C schema definition.
One method of constraining and validating the content of XML files is the Document Type Definition.
Although part of the XML specification, DTDs (and XML files that reference them) aren't quite as straight-forward to parse as the standalone -type syntax we've come to know and love.
To validate XML data with a DTD stored in the same file: A popular processor for XPath/XQuery and XSLT is Saxon. NET APIs, for our demos we use the Kernow tool, which provides a convenient interface for working with XML queries.
Kernow incorporates Saxon for its query processing, so with Kernow you'll be all set to experiment with XML querying.