Part of my xsd file looks like this:
<xs:complexType name="group">
<xs:sequence maxOccurs="unbounded" minOccurs="1">
<xs:element name="title" type="xs:string"/>
<xs:element name="description" type="xs:string"/>
<xs:element name="module" type="module" nillable="true" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="name" type="xs:string" />
</xs:complexType>
When I generate my classes using Jaxb in Eclipse. The "Group" class generates a method called:
public List<JAXBElement<?>> getTitleAndDescriptionAndModule();
How do I change the xsd so that I get getter for each of the elements?
Related
I'm struggling to understand why XJC is generating an ObjectFactory that wraps instances of the class corresponding to the root element in a JAXBElement wrapper.
The root element does not use an anonymous complex type. (You have to be a little careful when reviewing this schema because there are pairs of complexType names that at first glance look the same, but one is plural and the other singular -- e.g. optionalParametersType and optionalParameterType)
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xjc="http://java.sun.com/xml/ns/jaxb/xjc"
xmlns:jaxb="http://java.sun.com/xml/ns/jaxb"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns="urn:com-mbm-parameters"
targetNamespace="urn:com-mbm-parameters"
elementFormDefault="qualified"
jaxb:version="2.0">
<xs:element name="parameters" type="parametersType" />
<xs:complexType name="parametersType">
<xs:sequence>
<xs:element name="option-parameters" type="optionParametersType" minOccurs="0" maxOccurs="1"/>
<xs:element name="positional-parameters" type="positionalParametersType" minOccurs="0" maxOccurs="1"/>
<xs:element name="mutually-exclusive-parameters" type="mutuallyExclusiveParametersType" minOccurs="0" maxOccurs="1"/>
</xs:sequence>
<xs:attribute name="properties-file" type="xs:string" use="optional"/>
</xs:complexType>
<!--
-->
<xs:complexType name="optionParametersType">
<xs:sequence>
<xs:element name="option-parameter" type="optionParameterType" minOccurs="1" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<!--
-->
<xs:complexType name="optionParameterType">
<xs:sequence>
<xs:element name="description" type="descriptionType" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="type" type="xs:string" use="required"/>
<xs:attribute name="id" type="xs:string" use="required"/>
<xs:attribute name="name" type="xs:string" use="required"/>
<xs:attribute name="command-line-name" type="xs:string" use="optional"/>
<xs:attribute name="default-value" type="xs:string" use="optional"/>
</xs:complexType>
<!--
-->
<xs:complexType name="positionalParametersType">
<xs:sequence>
<xs:element name="positional-parameter" type="positionalParameterType" minOccurs="1" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<!--
-->
<xs:complexType name="positionalParameterType">
<xs:sequence>
<xs:element name="description" type="descriptionType" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="type" type="xs:string" use="required"/>
<xs:attribute name="id" type="xs:string" use="required"/>
<xs:attribute name="name" type="xs:string" use="required"/>
</xs:complexType>
<!--
-->
<xs:complexType name="descriptionType">
<xs:attribute name="forValue" type="xs:string" use="required"/>
</xs:complexType>
<!--
-->
<xs:complexType name="mutuallyExclusiveParametersType">
<xs:sequence>
<xs:element name="mutually-exclusive-parameter-set" type="mutuallyExclusiveParameterSetType" minOccurs="1" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<!--
-->
<xs:complexType name="mutuallyExclusiveParameterSetType">
<xs:sequence>
<xs:element name="mutually-exclusive-parameter" type="mutuallyExclusiveParameterType" minOccurs="1" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<!--
-->
<xs:complexType name="mutuallyExclusiveParameterType">
<xs:attribute name="id" type="xs:string" use="required"/>
<xs:attribute name="value" type="xs:string" use="required"/>
</xs:complexType>
</xs:schema>
Here's the snippet of ObjectFactory that returns instances of the ParametersType class:
/**
* Create an instance of {#link JAXBElement }{#code <}{#link ParametersType }{#code >}}
*
*/
#XmlElementDecl(namespace = "urn:com-mbm-parameters", name = "parameters")
public JAXBElement<ParametersType> createParameters(ParametersType value) {
return new JAXBElement<ParametersType>(_Parameters_QNAME, ParametersType.class, null, value);
}
This is the only place the JAXBElement is used within the entire ObjectFactory, so it's not there to disambiguate two or more possible elements.
Any idea why this is happening and how to remove the need to use the wrapper?
You get JAXBElement for top-level elements, which, in this case, is your parameters element.
The rationale is to separate types and elements (which you can see as instances of types). So it is, actually, to disambiguate two or more possible elements - you may have another schema which has a different element of the same parametersType. Global elements are sometimes references via <xs:element ref="..."/>, they can have substitution groups etc., so in general always have JAXBElements for global elements is not completely unreasonable. I'm not saying it is the best design decision, I'm just saying there is some rationale in it.
To get rid of the wrapper, try using xjc:simple or adding #XmlRootElement annotation on your own:
https://stackoverflow.com/a/39778670/303810
JAXB xjc:simple binding does not generate #XmlRootElement for base class
But better don't fight it, embrace it.
I have a complex XML Structure as below which needs to be unmarshalled:
<abc>
<pqr>
<attribute>name</attribute>
<entry>
<priorityKey>
<class>123</class>
<reason>abc</reason>
</prioritykey>
<priority> 1 </priority>
</entry>
<entry>
<prioritykey>
<class>456</class>
<reason>abc1</reason>
</prioritykey>
<priority>2</priority>
</entry>
</pqr>
<pqr>
'''
'''
</pqr>
</abc>
abc is the root node. It can have multiple pqr elements. Each pqr element has one attribute node and multiple entry nodes. So I believe it will be of type HashMap(entry,attribute).
Each entry in turn has prioritykey and priority which I believe will be of type HashMap (prioritykey,priority).
Need to unmarshall this xml but not getting how to configure the XMLAdapter
Here, create the contract first. I created one as part of my learning process...
<xs:element name="abc" type="abcType" />
<xs:complexType name="abcType">
<xs:sequence>
<xs:element name="pqr" type="pqrType" minOccurs="1"
maxOccurs="unbounded" />
</xs:sequence>
</xs:complexType>
<xs:complexType name="pqrType">
<xs:sequence>
<xs:element name="attribute" type="xs:string" minOccurs="1"
maxOccurs="1" />
<xs:element name="entry" type="entryType" minOccurs="1"
maxOccurs="unbounded" />
</xs:sequence>
</xs:complexType>
<xs:complexType name="entryType" >
<xs:sequence>
<xs:element name="priorityKey" type="priorityKeyType"
minOccurs="1" maxOccurs="1" />
<xs:element name="priority" type="xs:int" minOccurs="1"
maxOccurs="1" />
</xs:sequence>
</xs:complexType>
<xs:complexType name="priorityKeyType">
<xs:sequence>
<xs:element name="class" type="xs:int" minOccurs="1"
maxOccurs="1" />
<xs:element name="reason" type="xs:string" minOccurs="1"
maxOccurs="1" />
</xs:sequence>
</xs:complexType>
Copy and save this in an fileName.xsd file.
Now, generate JAXB classes or artifacts. If you are using an IDE, then this is simple. Click on the fileName.xsd file and you should get some option to generate JAXB artifacts. Otherwise, you can always use jaxb-xjc.jar present in the lib present in the JAXB download.
Command for the same - java -jar jaxb-xjc.jar fileName.xsd.
As the artifacts are in place, you can use them to unmarshall the xml content in question.
I have a xsd where there are 2 complextype elements under <Customer> complextype. One is <NormalCustomer> and <PrivilegedCustomer>. In my xml, I want either Normal or Privileged customer to be present under <Customer> tag based on the id attribute of Normal/Privileged customers.
below is my xsd
<xs:choice>
<xs:element name="normalCustomer" type="tns:normalCustomer" minOccurs="0" nillable="true"/>
<xs:element name="privilegedcustomer" type="tns:privilegedcustomer" minOccurs="0" nillable="true"/>
</xs:choice>
Complextype NormalCustomer
<xs:complexType name="normalCustomer">
<xs:sequence>
<xs:element name="id" type="xs:long"/>
<xs:element name="customerName" type="xs:string" minOccurs="1"/>
<xs:element name="customerType" type="xs:string" minOccurs="1"/>
</xs:sequence>
</xs:complexType>
Complextype PrivilegedCustomer
<xs:complexType name="privilegedCustomer">
<xs:sequence>
<xs:element name="id" type="xs:long"/>
<xs:element name="customerName" type="xs:string" minOccurs="1"/>
<xs:element name="customerType" type="xs:string" minOccurs="1"/>
</xs:sequence>
</xs:complexType>
Note: Am using JAXB for processing
Please suggest me how can I modify the tag to achieve my requirement.
Remove minOccurs="0" nillable="true" from both elements. The <xs:choice> enforces that exactly one of the elements are present. If none present are allowed, add minOccurs="0" to <xs:choice>.
Im generating a JAXB Marshalling-Unmarshalling Tool.
I have a set of annotated java classes, selecting all i auto generated JAXB schema in eclipse. I want to remove from schema, some of the fields which i dont want for some reason (May be later ill use them). I tried removed a field from schema like below
Schema Before removing
<xs:complexType name="Address">
<xs:sequence>
<xs:element name="buildingNo" type="xs:string" minOccurs="0"/>
<xs:element name="buildingName" type="xs:string" minOccurs="0"/>
<xs:element name="city" type="xs:string" minOccurs="0"/>
<xs:element name="country" type="xs:string" minOccurs="0"/>
</xs:sequence>
</xs:complexType>
Schema after removing buildingNo
<xs:complexType name="Address">
<xs:sequence>
<xs:element name="buildingName" type="xs:string" minOccurs="0"/>
<xs:element name="city" type="xs:string" minOccurs="0"/>
<xs:element name="country" type="xs:string" minOccurs="0"/>
</xs:sequence>
</xs:complexType>
If i try to marshall address object based on above schema im getting error like buildingNo not found instead found buildingName,....
How to remove unused fields from schema??
I'm using the JAXB xjc tool to generate some Java interface files from xsds. I'm running into a problem where I'm getting a tonne of errors of the form:
org.xml.sax.SAXParseException: ct-props-correct.4: Error for type 'COCT_MT110200CA.PayeeRole'. Duplicate attribute uses with the same name and target namespace are specified. Name of duplicate attribute use is 'nullFlavor'.
The relevant parts of the schema are as follows:
<xs:complexType name="COCT_MT110200CA.Holder">
<xs:sequence>
<xs:group ref="InfrastructureRootElements"/>
<xs:element name="payeeRole" type="COCT_MT110200CA.PayeeRole" minOccurs="1" maxOccurs="1">
</xs:element>
</xs:sequence>
<xs:attributeGroup ref="InfrastructureRootAttributes"/>
<xs:attribute name="nullFlavor" type="NullFlavor" use="optional"/>
<xs:attribute name="typeCode" type="ParticipationType" use="optional" fixed="HLD"/>
</xs:complexType>
Where COCT_MT110200CA.PayeeRole is defined as:
<xs:complexType name="COCT_MT110200CA.PayeeRole">
<xs:sequence>
<xs:group ref="InfrastructureRootElements"/>
<xs:element name="id" type="II" minOccurs="0" maxOccurs="unbounded">
</xs:element>
<xs:choice>
<xs:element name="payeePerson" type="COCT_MT110200CA.PayeePerson" nillable="true"
minOccurs="0"
maxOccurs="1">
</xs:element>
<xs:element name="payeeOrganization" type="COCT_MT110200CA.PayeeOrganization"
nillable="true"
minOccurs="0"
maxOccurs="1">
</xs:element>
</xs:choice>
</xs:sequence>
<xs:attributeGroup ref="InfrastructureRootAttributes"/>
<xs:attribute name="nullFlavor" type="NullFlavor" use="optional"/>
<xs:attribute name="classCode" type="RoleClass" use="optional" fixed="PAYEE"/>
</xs:complexType>
Any thoughts? I don't see anything wrong with this myself...
Oooh, I think I figured this out, there was a pesky attributeGroup (InfrastructureRootAttributes) there, and in that attributeGroup was the nullFlavor duplicate...