com.jalios.jcms.policy
Class BasicChannelPolicyFilter

java.lang.Object
  com.jalios.jcms.policy.AbstractPolicyFilter
      com.jalios.jcms.policy.BasicChannelPolicyFilter

All Implemented Interfaces:

PluginComponent, ChannelPolicyFilter, PolicyFilter, Comparable

public class BasicChannelPolicyFilter
extends AbstractPolicyFilter
implements ChannelPolicyFilter, PluginComponent

This class allow developers to put hooks to change channel mechanism behaviour. To get more information about the current request in hooks, the method Channel#getCurrentJcmsContext() must be called.

Since:

jcms-5.7.0

Version:

$Revision: 22357 $

Author:

Jean-Philippe Encausse

See Also:

ChannelPolicyFilter

Field Summary

static String

REVISION

Fields inherited from class com.jalios.jcms.policy.AbstractPolicyFilter

order

Constructor Summary

BasicChannelPolicyFilter()

Method Summary

void	checkJAVAMetaTemplates(Map templateMap, String className, org.jdom.Element typeElt, boolean isExtension) This method is a Hook to generate custom JAVA templates for a given type or extension
void	checkJSPMetaTemplates(Map templateMap, String className, org.jdom.Element typeElt, boolean isExtension) This method is a Hook to generate custom JSP templates for a given type or extension
Data	getData(String id) Retrieve a Data from its id.
boolean	init(Plugin plugin) Initialize the component with the given plugin configuration

Methods inherited from class com.jalios.jcms.policy.AbstractPolicyFilter

compareTo, equals, getOrder, setOrder

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.lang.Comparable

compareTo

Field Detail

REVISION

public static final String REVISION

See Also:

Constant Field Values

Constructor Detail

BasicChannelPolicyFilter

public BasicChannelPolicyFilter()

Method Detail

init

public boolean init(Plugin plugin)

Description copied from interface: PluginComponent

Initialize the component with the given plugin configuration

Specified by:

init in interface PluginComponent

Parameters:

plugin - the calling plugin

Returns:

true if the component has been correctly initialized.

Since:

jcms-5.7.1

See Also:

PluginComponent.init(Plugin)

checkJSPMetaTemplates

public void checkJSPMetaTemplates(Map templateMap,
                                  String className,
                                  org.jdom.Element typeElt,
                                  boolean isExtension)

Description copied from interface: ChannelPolicyFilter

This method is a Hook to generate custom JSP templates for a given type or extension

The templateMap contains the template file to generate.

• Keys: the name of the file to generate in Type folder
• Values: the name of the metatemplate file to use (in WEB-INF/template/ folder)

Specified by:

checkJSPMetaTemplates in interface ChannelPolicyFilter

Parameters:

templateMap - The map of key/value = file/template

className - The classname of the processing type

typeElt - The XML Element of the processing type

isExtension - boolean true if the type is an Extension Called in private method com.jalios.jcms.TypeProcessor#generateTypeJSP(String, Element)

Since:

jcms-5.7.0

See Also:

ChannelPolicyFilter.checkJSPMetaTemplates(Map, String, Element, boolean)

checkJAVAMetaTemplates

public void checkJAVAMetaTemplates(Map templateMap,
                                   String className,
                                   org.jdom.Element typeElt,
                                   boolean isExtension)

Description copied from interface: ChannelPolicyFilter

This method is a Hook to generate custom JAVA templates for a given type or extension

The templateMap contains the template file to generate.

• Keys: the name of the file (without .java extension)
• Values: the name of the metatemplate file to use (in WEB-INF/template/ folder)

Specified by:

checkJAVAMetaTemplates in interface ChannelPolicyFilter

Parameters:

templateMap - The map of key/value = file/template

className - The classname of the processing type

typeElt - The XML Element of the processing type

isExtension - boolean true if the type is an Extension Called in private method com.jalios.jcms.TypeProcessor#processTypes()

Since:

jcms-5.7.0

See Also:

ChannelPolicyFilter.checkJAVAMetaTemplates(Map, String, Element, boolean)

getData

public Data getData(String id)

Description copied from interface: ChannelPolicyFilter

Retrieve a Data from its id.

This method is invoked only when JCMS internal method could not find any data associated with the specified id (and if no other ChannelPolicyFilter did return a Data).
May be invoked frequently !! Ensure high performance.

This hook can be implemented by plugins creating transient Data (e.g through QueryFilter).

Example :

  public Data getData(String id) {
    if (!id.startsWith("someprefix_") {
      return null;
    }
    // perform data retrieval (preferably using a internal cache on your side)
    // ...
  }
 

Specified by:

getData in interface ChannelPolicyFilter

Parameters:

id - the id to look for (never null)

Returns:

a Data or null if no Data matching the specified id could be found

Since:

jcms-6.0

See Also:

ChannelPolicyFilter.getData(String)