org.mmbase.module.builders
Class Attachments

java.lang.Object
  org.mmbase.util.functions.FunctionProvider
      org.mmbase.module.core.MMTable
          org.mmbase.module.core.MMObjectBuilder
              org.mmbase.module.builders.AbstractServletBuilder
                  org.mmbase.module.builders.Attachments

All Implemented Interfaces:

EventListener, NodeEventListener, RelationEventListener

Direct Known Subclasses:

ReferredAttachments, Resources

public class Attachments
extends AbstractServletBuilder

This builder can be used for 'attachments' builders. That is builders which have a 'handle' field and are associated with the 'attachments servlet.

Version:

$Id: Attachments.java 40155 2009-12-08 15:55:13Z michiel $

Author:

cjr@dds.nl, Michiel Meeuwissen

Field Summary

protected Set<String>	ATTACHMENTS_HANDLE_FIELDS
static String	FIELD_SIZE

Fields inherited from class org.mmbase.module.builders.AbstractServletBuilder

externalUrlField, FIELD_FILENAME, FIELD_HANDLE, FIELD_MIMETYPE, FORMAT_PARAMETERS, GUI_PARAMETERS, legalizeFileName, MIMETYPE_PARAMETERS, PROPERTY_EXTERNAL_URL_FIELD, usesBridgeServlet

Fields inherited from class org.mmbase.module.core.MMObjectBuilder

AGE_PARAMETERS, broadCastChanges, DEFAULT_ALINEA, DEFAULT_EOL, description, descriptions, EVENT_TYPE_LOCAL, EVENT_TYPE_REMOTE, FIELD_NUMBER, FIELD_OBJECT_TYPE, FIELD_OWNER, fields, genericBlobCache, getFunctions, GUI_INDICATOR, guiFunction, infoFunction, internalVersion, nodeCache, oType, pluralNames, searchAge, singularNames, SYSTEM_OWNER, TEMPNODE_DEFAULT_SIZE, TMP_FIELD_EXISTS, TMP_FIELD_NUMBER, virtual, WRAP_PARAMETERS, wrapFunction

Fields inherited from class org.mmbase.module.core.MMTable

maxNodesFromQuery, mmb, storageConnector, tableName

Fields inherited from class org.mmbase.util.functions.FunctionProvider

functions

Constructor Summary

Attachments()

Method Summary

protected void	checkHandle(MMObjectNode node) If mimetype is not filled on storage in the database, then we can try to do smart things.
protected Object	executeFunction(MMObjectNode node, String function, List<?> args) Implements 'mimetype' function (Very simply for attachments, because they have the field).
protected String	getAssociation() This functions should return a string identifying where it is for.
protected String	getDefaultPath() If no servlet path can be found via the association (if the servlet did not 'associate' itself with something, like servdb), then the getServletPath function will fall back to this.
protected String	getGuiForNewAttachment(MMObjectNode node)
protected Set<String>	getHandleFields() Returns the fields which tell something about the 'handle' field, and can be calculated from it.
protected String	getSGUIIndicator(MMObjectNode node, Parameters a) 'Servlet' builders need a way to transform security to the servlet, in the gui functions, so they have to implement the 'SGUIIndicators'

Methods inherited from class org.mmbase.module.builders.AbstractServletBuilder

addFileName, commit, getBinary, getDefaultFileName, getFileName, getGUIIndicator, getGUIIndicator, getMimeType, getServletPath, getServletPath, getSession, getSuperGUIIndicator, init, insert

Methods inherited from class org.mmbase.module.core.MMObjectBuilder

addEventListener, addField, addLocalObserver, addRemoteObserver, broadcastChanges, checkAddTmpField, clearBlobCache, create, createAlias, createAlias, delete, equals, equals, executeFunction, fieldLocalChanged, getAncestors, getBlobCache, getClassName, getConfigFile, getConfigResource, getDataTypeCollector, getDBState, getDBType, getDefaultTeaser, getDefaultUrl, getDescendants, getDescription, getDescription, getDescriptions, getEmptyNode, getField, getFieldNames, getFields, getFields, getFunction, getFunctionParameters, getFunctions, getGUIIndicator, getHTML, getInitParameter, getInitParameters, getInitParameters, getInternalVersion, getList, getLocaleGUIIndicator, getLocaleGUIIndicator, getMachineName, getMaintainer, getNewNode, getNewTmpNode, getNextField, getNextField, getNode, getNode, getNode, getNodeFromCache, getNodeGUIIndicator, getNumber, getObjectType, getObjectValue, getParentBuilder, getPluralName, getPluralName, getPluralNames, getRelations_main, getSearchAge, getShort, getShortedByte, getShortedInputStream, getShortedText, getSingularName, getSingularName, getSingularNames, getSmartPath, getTmpNode, getURLEncode, getValue, getVersion, getWAP, getXMLPath, hasField, hashCode, hashCode, hostname_function, insert, isExtensionOf, isNodeCached, isNull, isVirtual, loadInitParameters, newFunctionInstance, nodeLocalChanged, nodeRemoteChanged, notify, notify, preCommit, process, removeEventListener, removeField, removeLocalObserver, removeNode, removeRelations, removeRemoteObserver, removeSyncNodes, replace, safeCache, sendFieldChangeSignal, setDefaults, setDescription, setDescriptions, setFields, setInitParameter, setMaintainer, setPluralNames, setSearchAge, setSingularNames, setUniqueValue, setUniqueValue, setValue, setValue, setVersion, setXMLPath, shutdown, testValidData, toString, toString, update, updateFields, wrap

Methods inherited from class org.mmbase.module.core.MMTable

count, count, created, getFullTableName, getMMBase, getNode, getNodes, getNodes, getNodes, getNodeType, getStorageConnector, getTableName, search, searchVector, setMMBase, setTableName, size

Methods inherited from class org.mmbase.util.functions.FunctionProvider

addFunction, createParameters, getFunction, getFunctions, getFunctionValue

Methods inherited from class java.lang.Object

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

Field Detail

FIELD_SIZE

public static final String FIELD_SIZE

See Also:

Constant Field Values

ATTACHMENTS_HANDLE_FIELDS

protected final Set<String> ATTACHMENTS_HANDLE_FIELDS

Constructor Detail

Attachments

public Attachments()

Method Detail

getAssociation

protected String getAssociation()

Description copied from class: AbstractServletBuilder

This functions should return a string identifying where it is for. This is used when communicating with MMBaseServlet, to find the right servlet. For example 'images' or 'attachments'.

Specified by:

getAssociation in class AbstractServletBuilder

getDefaultPath

protected String getDefaultPath()

Description copied from class: AbstractServletBuilder

If no servlet path can be found via the association (if the servlet did not 'associate' itself with something, like servdb), then the getServletPath function will fall back to this. For example 'img.db' or 'attachment.db'.

Specified by:

getDefaultPath in class AbstractServletBuilder

getGuiForNewAttachment

protected String getGuiForNewAttachment(MMObjectNode node)
                                 throws IOException

Throws:

IOException

Since:

MMBase-1.9.2

getSGUIIndicator

protected String getSGUIIndicator(MMObjectNode node,
                                  Parameters a)

Description copied from class: AbstractServletBuilder

'Servlet' builders need a way to transform security to the servlet, in the gui functions, so they have to implement the 'SGUIIndicators'

Specified by:

getSGUIIndicator in class AbstractServletBuilder

getHandleFields

protected Set<String> getHandleFields()

Description copied from class: AbstractServletBuilder

Returns the fields which tell something about the 'handle' field, and can be calculated from it.

Specified by:

getHandleFields in class AbstractServletBuilder

checkHandle

protected void checkHandle(MMObjectNode node)

If mimetype is not filled on storage in the database, then we can try to do smart things.

Overrides:

checkHandle in class AbstractServletBuilder

executeFunction

protected Object executeFunction(MMObjectNode node,
                                 String function,
                                 List<?> args)

Implements 'mimetype' function (Very simply for attachments, because they have the field).

Overrides:

executeFunction in class AbstractServletBuilder

Since:

MMBase-1.6.1

See Also:

MMObjectBuilder.executeFunction(org.mmbase.module.core.MMObjectNode, java.lang.String, java.util.List)