oracle.toplink.essentials.mappings.TypedAssociation Maven / Gradle / Ivy
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package oracle.toplink.essentials.mappings;
import oracle.toplink.essentials.descriptors.DescriptorEvent;
/**
* Purpose: Generic association object.
* This can be used to map hashtable/map containers where the key and value are non-typed primitives.
*
* @author James Sutherland
* @since TOPLink/Java 3.0
*/
public class TypedAssociation extends Association {
protected Class keyType;
protected Class valueType;
/**
* Default constructor.
*/
public TypedAssociation() {
super();
}
/**
* PUBLIC:
* Create an association.
*/
public TypedAssociation(Object key, Object value) {
super(key, value);
if (key != null) {
this.keyType = key.getClass();
}
this.value = value;
if (value != null) {
this.valueType = value.getClass();
}
}
/**
* PUBLIC:
* Return the class of the key.
*/
public Class getKeyType() {
return keyType;
}
/**
* PUBLIC:
* Return the class of the value.
*/
public Class getValueType() {
return valueType;
}
/**
* INTERNAL:
* Handler for the descriptor post build event.
* Convert the key and values to their appropriate type.
*/
public void postBuild(DescriptorEvent event) {
setKey(event.getSession().getDatasourceLogin().getDatasourcePlatform().getConversionManager().convertObject(getKey(), getKeyType()));
setValue(event.getSession().getDatasourceLogin().getDatasourcePlatform().getConversionManager().convertObject(getValue(), getValueType()));
}
/**
* PUBLIC:
* Set the class of the key.
*/
public void setKeyType(Class keyType) {
this.keyType = keyType;
}
/**
* PUBLIC:
* Set the class of the value.
*/
public void setValueType(Class valueType) {
this.valueType = valueType;
}
}