The MapPropertyInfo.java Java example source code
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package com.sun.xml.internal.bind.v2.model.core;
import java.util.Map;
import javax.xml.namespace.QName;
/**
* Property that maps to the following schema fragment.
*
* <pre><![CDATA[
* <xs:complexType>
* <xs:sequence>
* <xs:element name="entry" minOccurs="0" maxOccurs="unbounded">
* <xs:complexType>
* <xs:sequence>
* <xs:element name="key" type="XXXX"/>
* <xs:element name="value" type="YYYY"/>
* </xs:sequence>
* </xs:complexType>
* </xs:element>
* </xs:sequence>
* </xs:complexType>
* </xmp></pre>
*
* <p>
* This property is used to represent a default binding of a {@link Map} property.
* ({@link Map} properties with adapters will be represented by {@link ElementPropertyInfo}.)
*
*
* <h2>Design Thinking Led to This</h2>
* <p>
* I didn't like the idea of adding such a special-purpose {@link PropertyInfo} to a model.
* The alternative was to implicitly assume an adapter, and have internal representation of
* the Entry class ready.
* But the fact that the key type and the value type changes with the parameterization makes
* it very difficult to have such a class (especially inside Annotation Processing, where we can't even generate
* classes.)
*
* @author Kohsuke Kawaguchi
*/
public interface MapPropertyInfo<T,C> extends PropertyInfo<T,C> {
/**
* Gets the wrapper element name.
*
* @return
* always non-null.
*/
QName getXmlName();
/**
* Returns true if this property is nillable
* (meaning the absence of the value is treated as nil='true')
*
* <p>
* This method is only used when this property is a collection.
*/
boolean isCollectionNillable();
/**
* Type of the key of the map. K of {@code HashMap<K,V>}
*
* @return never null.
*/
NonElement<T,C> getKeyType();
/**
* Type of the value of the map. V of {@code HashMap<K,V>}
*
* @return never null.
*/
NonElement<T,C> getValueType();
// TODO
// Adapter<T,C> getKeyAdapter();
// Adapter<T,C> getValueAdapter();
}
</pre>
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