RE: Help in Converting JAXB schema to XMLBeans schema

Cezar Andrei Wed, 01 Feb 2006 14:30:35 -0800

I’m not an expert in JAXB but here it is my take on it:

1) When compiling with XMLBeans the schema files, one can customize the package names and the class names through .xsdconfig file, but it doesn’t allow changing the property name. If you really care about the property name you can use Interface Extensions and delegate to the real method (go here for more details: http://wiki.apache.org/xmlbeans/ExtensionInterfacesFeature )

2) XMLBeans always generates isSet methods.

3) For properties that have maxOccurs bigger than 1, XMLBeans generates the following setters and getters:

java.util.List<LineItem> getLineItemList(); //generics are used when –javaversion 1.5 switch is used
LineItem[] getLineItemArray();
LineItem getLineItemArray(int i);
int sizeOfLineItemArray();
void setLineItemArray(LineItem[] lineItemArray);
void setLineItemArray(int i, LineItem lineItem);
LineItem insertNewLineItem(int i);
LineItem addNewLineItem();
void removeLineItem(int i);

4) XMLBeans always generates type-safe Enumeration like types for schema enumeration types.

5) I don’t understand exactly the problem here, but it seems to me that it should at least be solvable using the Interface Extension. And through the type variable on every generated type you can get to _all_ of the XML info set information on that and other types including any default/fixed values etc.

6) XMLBeans will automatically generate a type for schema type CustomDate that will allow one to play with instances of that type. Also one can verify the validity of an instance of this type at any time and can have access to the raw string. Specifically for dates, XMLBeans contains classes that follow exactly the semantics of XMLSchema date types.

I hope this helps,

Cezar, Radu, Lawrence

From: Jun Victorio [mailto:[EMAIL PROTECTED]
Sent: Tuesday, January 31, 2006 1:21 PM
To: [email protected]
Cc: [EMAIL PROTECTED]
Subject: Help in Converting JAXB schema to XMLBeans schema

Hi there,

I’m new in using xmlbeans and xml schema. We are trying to migrate an existing application that uses jaxb to xmlbeans. The current application uses jaxb 1.6 version. I have several questions regarding specific jaxb custom binding extensions that are used and try converting this to xmlbeans standard.

JAXB version:

<xsd:element name="AvailabilityResponse">

<xsd:complexType>

<xsd:sequence>

<xsd:element ref="ResponseItem" minOccurs="0" maxOccurs="unbounded">

<xsd:annotation>

<xsd:appinfo>

<jxb:property name="responseItems"/>

</xsd:appinfo>

</xsd:annotation>

</xsd:element>

</xsd:sequence>

</xsd:complexType>

</xsd:element>

How would you define this is xmlbeans schema format. Since I can not use the “jxb:property name=…”

JAXB version:

<xsd:element name="Day" type="xsd:date" minOccurs="0">

<xsd:annotation>

<xsd:appinfo>

<jxb:property generateIsSetMethod="true"/>

</xsd:appinfo>

</xsd:annotation>

</xsd:element>

Is there any corresponding xmlbeans extension for “jxb:property generateIsSetMethod=”true”/>” or attributes?

JAXB version:

<xsd:element name="BrandID" type="xsd:int" minOccurs="0" maxOccurs="unbounded">

<xsd:annotation>

<xsd:appinfo>

<jxb:property name="brandIDs" collectionType="indexed"/>

</xsd:appinfo>

</xsd:annotation>

</xsd:element>

Again is there any corresponding xmlbeans extension for: “<jxb:property name="brandIDs" collectionType="indexed"/>”

JAXB version:

<xsd:simpleType name="PartNumberConstants">

<xsd:annotation>

<xsd:appinfo>

<jxb:typesafeEnumClass/>

</xsd:appinfo>

</xsd:annotation>

<xsd:restriction base="xsd:string">

<xsd:enumeration value="INTERNAL"/>

<xsd:enumeration value="SKU"/>

<xsd:enumeration value="UPC"/>

</xsd:restriction>

</xsd:simpleType>

What’s the correponding xmlbeans extensions for: “<jxb:typesafeEnumClass/>” or is xmlbeans already has type safe enumeration build-in when you define an enumeration?

JAXB version:

<xsd:annotation>

<xsd:appinfo>

<jxb:globalBindings fixedAttributeAsConstantProperty="true" collectionType="java.util.ArrayList"/>

<jxb:schemaBindings>

<jxb:package name="com.starcomsoft.growernetwork.binding.availability"/>

</jxb:schemaBindings>

</xsd:appinfo>

</xsd:annotation>

I don’t understand the meaning of “<jxb:globalBindings fixedAttributeAsConstantProperty="true" collectionType="java.util.ArrayList"/>”. I’ve read the JAXB tutorial and still don’t fully grasp the meaning of this one. From what I know it looks like when an element is an enumeration/sets the generated Java classes will return an instance of ArrayList instead of array[]. Is there any corresponding xmlbean extension/attributes or custom binding for it?

JAXB version:

<xsd:simpleType name="CustomDate">

<xsd:annotation>

<xsd:appinfo>

<jxb:javaType name="com.starcomsoft.growernetwork.connect.messaging.CustomDate" parseMethod="fromString" printMethod="toString"/>

</xsd:appinfo>

</xsd:annotation>

<xsd:restriction base="xsd:string">

<xsd:length value="10"/>

<xsd:pattern value="\d{4}-\d{2}-\d{2}"/>

</xsd:restriction>

</xsd:simpleType>

This one jaxb provides a custom binding for a type “CustomDate” and will call the custom java class handler to process the data. How would I implement this in xmlbeans?

Any help or suggestions are greatly appreciated and also thank you in advance for all your help.

Jun Victorio

RE: Help in Converting JAXB schema to XMLBeans schema

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