Package org.opencms.file.collectors

Class CmsCategoryResourceCollector

java.lang.Object

org.opencms.file.collectors.A_CmsResourceCollector

org.opencms.file.collectors.CmsCategoryResourceCollector

All Implemented Interfaces:

java.lang.Comparable<I_CmsResourceCollector>, I_CmsCollectorPublishListProvider, I_CmsResourceCollector

public class CmsCategoryResourceCollector
extends A_CmsResourceCollector

A collector to fetch XML contents in a folder or the current site filtered by one or more given category types.

The return list will also be filtered by given key value pairs which are given as a collector parameter.

Usage: <cms:contentload collector="allKeyValuePairFiltered" param="resource=[filename]|resourceType=[resource type]|categoryTypes=[category1,category2,...]|subTree=[boolean]|sortBy=[category|date|property:[property_name]]|sortAsc=[boolean]">

Since:

7.0.0

Field Summary

Fields

Modifier and Type	Field	Description
static java.util.Comparator<CmsResource>	COMPARE_DATE_RELEASED_DESC	Compares the release date of resources in descending order.
protected static org.apache.commons.logging.Log	LOG	The log object for this class.

Fields inherited from class org.opencms.file.collectors.A_CmsResourceCollector

m_order, SEPARATOR_TEMPLATEFILE

Fields inherited from interface org.opencms.file.collectors.I_CmsResourceCollector

DEFAULT_LIMIT

Constructor Summary

Constructors

Constructor	Description
CmsCategoryResourceCollector()

Method Summary

Modifier and Type	Method	Description
protected java.util.List<CmsResource>	allKeyValuePairFiltered(CmsObject cms, java.lang.String param, int numResults)	Collects all resources for the given categories filtered and sorted by the given collector parameter.
java.util.List<java.lang.String>	getCollectorNames()	Returns a list of all collector names (Strings) this collector implementation supports.
java.lang.String	getCreateLink(CmsObject cms, java.lang.String collectorName, java.lang.String param)	Returns the link that must be executed when a user clicks on the direct edit "new" button on a list created by the named collector.
java.lang.String	getCreateParam(CmsObject cms, java.lang.String collectorName, java.lang.String param)	Returns the parameter that must be passed to the I_CmsResourceCollector.getCreateLink(CmsObject, String, String) method.
java.util.List<CmsResource>	getResults(CmsObject cms, java.lang.String collectorName, java.lang.String param)	Returns a list of CmsResource Objects that are gathered in the VFS using the named collector.
java.util.List<CmsResource>	getResults(CmsObject cms, java.lang.String collectorName, java.lang.String param, int numResults)	Returns a list of CmsResource Objects that are gathered in the VFS using the named collector.

Methods inherited from class org.opencms.file.collectors.A_CmsResourceCollector

checkParams, compareTo, createResourceForCollector, equals, getCreateInFolder, getCreateInFolder, getCreateLink, getCreateParam, getCreateTypeId, getDefaultCollectorName, getDefaultCollectorParam, getOrder, getPostCreateHandler, getPublishResources, getResults, hashCode, setDefaultCollectorName, setDefaultCollectorParam, setOrder, shrinkToFit, shrinkToFit

Methods inherited from class java.lang.Object

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

Field Detail

COMPARE_DATE_RELEASED_DESC

public static final java.util.Comparator<CmsResource> COMPARE_DATE_RELEASED_DESC

Compares the release date of resources in descending order.

LOG

protected static final org.apache.commons.logging.Log LOG

The log object for this class.

Constructor Detail

CmsCategoryResourceCollector

public CmsCategoryResourceCollector()

Method Detail

getCollectorNames

public java.util.List<java.lang.String> getCollectorNames()

Description copied from interface: I_CmsResourceCollector

Returns a list of all collector names (Strings) this collector implementation supports.

Returns:

a list of all collector names this collector implementation supports

See Also:

I_CmsResourceCollector.getCollectorNames()

getCreateLink

public java.lang.String getCreateLink(CmsObject cms,
                                      java.lang.String collectorName,
                                      java.lang.String param)
                               throws CmsException,
                                      CmsDataAccessException

Description copied from interface: I_CmsResourceCollector

Returns the link that must be executed when a user clicks on the direct edit "new" button on a list created by the named collector.

If this method returns null, it indicated that the selected collector implementation does not support a "create link", and so no "new" button will should shown on lists generated with this collector.

Parameters:

cms - the current CmsObject

collectorName - the name of the collector to use

param - an optional collector parameter

Returns:

the link to execute after a "new" button was clicked

Throws:

CmsException - if something goes wrong

CmsDataAccessException - if the parameter attribute of the corresponding collector tag is invalid

See Also:

I_CmsResourceCollector.getCreateLink(org.opencms.file.CmsObject, java.lang.String, java.lang.String)

getCreateParam

public java.lang.String getCreateParam(CmsObject cms,
                                       java.lang.String collectorName,
                                       java.lang.String param)
                                throws CmsDataAccessException

Description copied from interface: I_CmsResourceCollector

Returns the parameter that must be passed to the I_CmsResourceCollector.getCreateLink(CmsObject, String, String) method.

If this method returns null, it indicates that the selected collector implementation does not support a "create link", and so no "new" button will should shown on lists generated with this collector.

Parameters:

cms - the current CmsObject

collectorName - the name of the collector to use

param - an optional collector parameter from the current page context

Returns:

the parameter that will be passed to the I_CmsResourceCollector.getCreateLink(CmsObject, String, String) method, or null

Throws:

CmsDataAccessException - if the parameter attribute of the corresponding collector tag is invalid

See Also:

I_CmsResourceCollector.getCreateParam(org.opencms.file.CmsObject, java.lang.String, java.lang.String)

getResults

public java.util.List<CmsResource> getResults(CmsObject cms,
                                              java.lang.String collectorName,
                                              java.lang.String param)
                                       throws CmsDataAccessException,
                                              CmsException

Description copied from interface: I_CmsResourceCollector

Returns a list of CmsResource Objects that are gathered in the VFS using the named collector.

Parameters:

cms - the current CmsObject

collectorName - the name of the collector to use

param - an optional collector parameter

Returns:

a list of CmsXmlContent objects

Throws:

CmsDataAccessException - if the parameter attribute of the corresponding collector tag is invalid

CmsException - if something goes wrong

See Also:

I_CmsResourceCollector.getResults(org.opencms.file.CmsObject, java.lang.String, java.lang.String)

getResults

public java.util.List<CmsResource> getResults(CmsObject cms,
                                              java.lang.String collectorName,
                                              java.lang.String param,
                                              int numResults)
                                       throws CmsDataAccessException,
                                              CmsException

Description copied from interface: I_CmsResourceCollector

Returns a list of CmsResource Objects that are gathered in the VFS using the named collector.

This method takes as a parameter the desired number of results. If this number is -1, the number of results will only depend on the collector parameters. If it is positive, any given result number in the collector parameter string will not be used.

Parameters:

cms - the current CmsObject

collectorName - the name of the collector to use

param - an optional collector parameter

numResults - the desired number of results (overrides result number possibl

Returns:

a list of CmsXmlContent objects

Throws:

CmsDataAccessException - if the parameter attribute of the corresponding collector tag is invalid

CmsException - if something goes wrong

See Also:

I_CmsResourceCollector.getResults(org.opencms.file.CmsObject, java.lang.String, java.lang.String)

allKeyValuePairFiltered

protected java.util.List<CmsResource> allKeyValuePairFiltered(CmsObject cms,
                                                              java.lang.String param,
                                                              int numResults)
                                                       throws CmsException

Collects all resources for the given categories filtered and sorted by the given collector parameter.

Parameters:

cms - the current OpenCms user context

param - value parameter to filter the resources

numResults - number of results

Returns:

a list of resources filtered and sorted by the given collector parameter

Throws:

CmsException - if something goes wrong