org.apache.jackrabbit.server.io
Class FileExportCommand

java.lang.Object
  org.apache.jackrabbit.server.io.AbstractCommand
      org.apache.jackrabbit.server.io.AbstractExportCommand
          org.apache.jackrabbit.server.io.FileExportCommand

All Implemented Interfaces:

org.apache.commons.chain.Command, org.apache.jackrabbit.JcrConstants

public class FileExportCommand

extends AbstractExportCommand

This Class implements a export command that returns the data included in the jcr:data property of a nt:resource node.

Field Summary

Fields inherited from interface org.apache.jackrabbit.JcrConstants

JCR_AUTOCREATED, JCR_BASEVERSION, JCR_CHILD, JCR_CHILDNODEDEFINITION, JCR_CONTENT, JCR_CREATED, JCR_DATA, JCR_DEFAULTPRIMARYTYPE, JCR_DEFAULTVALUES, JCR_ENCODING, JCR_FROZENMIXINTYPES, JCR_FROZENNODE, JCR_FROZENPRIMARYTYPE, JCR_FROZENUUID, JCR_HASORDERABLECHILDNODES, JCR_ISCHECKEDOUT, JCR_ISMIXIN, JCR_LANGUAGE, JCR_LASTMODIFIED, JCR_LOCKISDEEP, JCR_LOCKOWNER, JCR_MANDATORY, JCR_MERGEFAILED, JCR_MIMETYPE, JCR_MIXINTYPES, JCR_MULTIPLE, JCR_NAME, JCR_NODETYPENAME, JCR_ONPARENTVERSION, JCR_PATH, JCR_PREDECESSORS, JCR_PRIMARYITEMNAME, JCR_PRIMARYTYPE, JCR_PROPERTYDEFINITION, JCR_PROTECTED, JCR_REQUIREDPRIMARYTYPES, JCR_REQUIREDTYPE, JCR_ROOTVERSION, JCR_SAMENAMESIBLINGS, JCR_SCORE, JCR_STATEMENT, JCR_SUCCESSORS, JCR_SUPERTYPES, JCR_SYSTEM, JCR_UUID, JCR_VALUECONSTRAINTS, JCR_VERSIONABLEUUID, JCR_VERSIONHISTORY, JCR_VERSIONLABELS, JCR_VERSIONSTORAGE, MIX_LOCKABLE, MIX_REFERENCEABLE, MIX_VERSIONABLE, NT_BASE, NT_CHILDNODEDEFINITION, NT_FILE, NT_FOLDER, NT_FROZENNODE, NT_HIERARCHYNODE, NT_LINKEDFILE, NT_NODETYPE, NT_PROPERTYDEFINITION, NT_QUERY, NT_RESOURCE, NT_UNSTRUCTURED, NT_VERSION, NT_VERSIONEDCHILD, NT_VERSIONHISTORY, NT_VERSIONLABELS

Constructor Summary

FileExportCommand()

Method Summary

boolean	canHandle(Node node) Checks if the given node can be handled by this export command.
boolean	exportNode(ExportContext context, Node content) Exports the node by returning the content of the jcr:data property of the content node.
String	getDefaultContentType() Returns the default content type

Methods inherited from class org.apache.jackrabbit.server.io.AbstractExportCommand

execute, execute

Methods inherited from class org.apache.jackrabbit.server.io.AbstractCommand

execute, getId, setEnabled, setId

Methods inherited from class java.lang.Object

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

Constructor Detail

FileExportCommand

public FileExportCommand()

Method Detail

exportNode

public boolean exportNode(ExportContext context,
                          Node content)
                   throws Exception

Exports the node by returning the content of the jcr:data property of the content node.

Specified by:

exportNode in class AbstractExportCommand

Parameters:

context - the export context

content - the content node

Returns:

true

Throws:

Exception - if an error occurrs

getDefaultContentType

public String getDefaultContentType()

Returns the default content type

Specified by:

getDefaultContentType in class AbstractExportCommand

Returns:

"application/octet-stream".

canHandle

public boolean canHandle(Node node)

Checks if the given node can be handled by this export command. This is the case, if the node contains a 'jcr:content' node which is of node type 'nt:resource'.

Specified by:

canHandle in class AbstractExportCommand

Parameters:

node - the node to be exported

Returns:

true if the correct node is passed; false otherwise.