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Table 2. Mapping between built-in XSD schema and JavaBean properties (continued)
Header Header
anySimpleType String
Any String
There are cases in which a simple XML data type must be mapped to the
corresponding Java wrapper class for the Java primitive type:
v an element declaration with the nillable attribute set to True
v an element declaration with the minOccurs attribute set to 0 (zero) and the
maxOccurs attribute set to 1 (one) or absent
v an attribute declaration with the use attribute set to optional or absent and
carrying neither the default nor the fixed attribute
The following shows examples of each:
v
<xsd:element name="code" type="xsd:int" nillable="true"/>
v <xsd:element name="code2" type="xsd:int" minOccurs=""></xsd:element>
v <xsd:element name="">
<xsd:complexType>
<xsd:sequence/>
<xsd:attribute name="">
</xsd:attribute></xsd:complexType>
</xsd:element>
The element/attribute declarations for code, code2, code3 above are all mapped to
the java.lang.Integer type.
JavaBean Metadata ASI format: The metadata is derived mostly from the structure of
the bean. Other metadata, such as containedType and maxLength are not normal
parts of a JavaBean structure, so they must be part of the annotation maps.
Annotation maps:
Annotations are not normally part of a JavaBean structure, so JavaBeanRecords
must contain annotations in a specific format to be usable by the metadata API.
The JavaBeanRecord must implement the BeanMetadata interface.
public interface BeanMetadata {
public Map getObjectAnnotations();
public Map getPropertyAnnotations();
public Set getSetAttributes();
}
Each property (if it needs metadata) will have its own Map, which will be stored
in the propertyAnnotations map, using the property name as key.
Reserved keys in the propertyAnnotations map:
v ContainedType
The class of the object that this property contains
v PrimaryKey:
Whether this property is key
v DefaultValue:
The default value
v MaxLength:
The maximum length of this property.
116 WebSphere Adapters: WebSphere Adapter Toolkit User Guide
- WebSphere 1
- Contents 5
- WebSphere Adapter Toolkit 7
- IBM WebSphere Adapters 8
- Business 9
- Architectural overview 10
- JCA connector component 11
- Metadata 13
- Operating system requirements 17
- Samples overview 18
- Developer 19
- Modify the module 30
- Test the sample 31
- Troubleshooting the samples 34
- Specify project properties 37
- Specify project facets 38
- Specify generation options 40
- Data Binding classes 44
- Using the Overview pane 64
- Generated bean properties 73
- Data model 75
- After-images versus deltas 76
- Verbs versus operations 77
- Business object standards 77
- Inbound event notification 85
- Event Store Requirements 87
- Adapter Requirements 87
- Application Requirements 87
- Transaction Support Methods 93
- One way callback events 96
- Callback event sender 97
- Outbound support 103
- Application sign-on 104
- Implementing outbound support 105
- Using command patterns 111
- Data and metadata 121
- The Metadata API 125
- Factory classes 126
- Interfaces 126
- Interface Type: 127
- Types of enterprise metadata 130
- Metadata discovery 133
- OutboundConnectionType 134
- InboundConnectionType 135
- MetadataConnection 136
- Namespace definition 142
- Implementing a data handler 164
- Implementing a data binding 165
- Discovery-service.xml 168
- Initialize input method 169
- Initialize output method 169
- Set managed connection method 170
- Get next method 170
- Clone method 171
- Close method 171
- Extract method 171
- Data binding implementation 172
- DataBinding generator 173
- Problem determination 174
- Logging and tracing messages 180
- Validating the code 199
- Developing JUnit tests 201
- Installing the test client 204
- Saving business object data 205
- Using an execution trace 206
- Testing inbound functionality 206
- WebSphere Application Server 209
- Reference 214
- Terminology 214
- Trademarks and service marks 219
- Printed in USA 226
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