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package javax.enterprise.deploy.spi;
import java.beans.PropertyChangeListener;
import javax.enterprise.deploy.model.*;
import javax.enterprise.deploy.spi.exceptions.ConfigurationException;
import javax.enterprise.deploy.spi.exceptions.BeanNotFoundException;
/**
* The DConfigBean is a deployment configuration bean (DConfigBean)
* that is associated with one or more deployment descriptor beans,
* (DDBean). A DConfigBean represents a logical grouping of deployment
* configuration data to be presented to the Deployer. A DConfigBean
* provides zero or more XPaths that identifies the XML information
* it requires. A DConfigBean may contain other DConfigBeans and
* regular JavaBeans. The top most DConfigBean is a DConfigBeanRoot
* object which represents a single XML instance document.
*
* <p>
* A DConfigBean is created by calling DConfigBean.getDConfigBean(DDBean)
* method, where DConfigBean is the object that provided the XPath which
* the DDBean represents.
*
* <p>
* A DConfigBean is a JavaBean component that presents the dynamic
* deployment configuration information for a J2EE plugin to the deployer.
* It is a JavaBean. The JavaBean architecture was chosen because
* of its versatility in providing both simple and complex components.
* JavaBeans also enable the development of property sheets and property
* editors, as well as sophisticated customization wizards.
*
* <p>
* It is expected that a plugin vendor will provide a Property Editor
* for any complex datatype in a DConfigBean that a deployer needs to edit
* through a property sheet. The Property Editor should be implemented
* and made available to a tool according to the guidelines defined in the
* JavaBeans API Specification version 1.01.
*/
public interface DConfigBean
{
/**
* Return the JavaBean containing the deployment
* descriptor XML text associated with this DConfigBean.
* @return The bean class containing the XML text for
* this DConfigBean.
*/
public DDBean getDDBean();
/**
* Return a list of XPaths designating the deployment descriptor
* information this DConfigBean requires.
*
* A given server vendor will need to specify some server-specific
* information. Each String returned by this method is an XPath
* describing a certain portion of the standard deployment descriptor
* for which there is corresponding server-specific configuration.
*
* @return a list of XPath Strings representing XML data to be retrieved
* or 'null' if there are none.
*/
public String[] getXpaths();
/**
* Return the JavaBean containing the server-specific deployment
* configuration information based upon the XML data provided
* by the DDBean.
*
* @return The DConfigBean to display the server-specific properties
* for the standard bean.
* @param bean The DDBean containing the XML data to be
* evaluated.
* @throws ConfigurationException reports errors in generating
* a configuration bean. This DDBean is considered
* undeployable to this server until this exception
* is resolved.
* A suitably descriptive message is required so the user
* can diagnose the error.
*/
public DConfigBean getDConfigBean(DDBean bean)
throws ConfigurationException;
/**
* Remove a child DConfigBean from this bean.
*
* @param bean The child DConfigBean to be removed.
* @throws BeanNotFoundException the bean provided
* is not in the child list of this bean.
*/
public void removeDConfigBean(DConfigBean bean)
throws BeanNotFoundException;
/**
* A notification that the DDBean provided in the
* event has changed and this bean or its child beans need
* to reevaluate themselves.
*
* @param event an event containing a reference to the
* DDBean which has changed.
*/
public void notifyDDChange(XpathEvent event);
/**
* Register a property listener for this bean.
* @param pcl PropertyChangeListener to add
*/
public void addPropertyChangeListener(PropertyChangeListener pcl);
/**
* Unregister a property listener for this bean.
* @param pcl Listener to remove.
*/
public void removePropertyChangeListener(PropertyChangeListener pcl);
}
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