Java Doc for ViewBlob.java in  » J2EE » Expresso » com » jcorporate » expresso » services » controller » dbmaint » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » Expresso » com.jcorporate.expresso.services.controller.dbmaint   Source Cross Reference   Class Diagram   Java Document (Java Doc)   com.jcorporate.expresso.services.controller.dbmaint.DynamicCmd    com.jcorporate.expresso.services.controller.dbmaint.ViewBlob ViewBlob public class ViewBlob extends DynamicCmd (Code) This state allows for viewing of BLOB data types. It supports standard blob types by sending a mime type of application/x-unknown, and is supports MediaDbObjects be setting MIME type, file name, and size to that of the file that was originally uploaded to the database table. author:    Michael Rimov version:    $Revision: 1.11 $ on $Date: 2004/11/17 20:48:18 $ Constructor Summary public   ViewBlob()      Constructor that sets the necessary description and key name. Method Summary public  void run(ControllerRequest newRequest, ControllerResponse newResponse)      Download the BLOB field. protected  void sendBlobField(ControllerRequest newRequest, ControllerResponse newResponse, JDBCDataObject dbobj, String fieldName)      Sends a BLOB field to the client browser. protected  void sendMediaObjectField(ControllerRequest newRequest, ControllerResponse newResponse, MediaDBObject dbobj, String fieldName)      Sends a Media DBObject's BLOB fields to the client. protected  void sendStream(InputStream is, ServletResponse response)      Sends the given stream to the client servlet output stream. Constructor Detail ViewBlob public ViewBlob()(Code) Constructor that sets the necessary description and key name. Method Detail run public void run(ControllerRequest newRequest, ControllerResponse newResponse) throws com.jcorporate.expresso.core.controller.NonHandleableException, com.jcorporate.expresso.core.controller.ControllerException(Code) Download the BLOB field. Parameters:   newRequest - The ControllerRequest Object Parameters:   newResponse - The ControllerREsponse OBject sendBlobField protected void sendBlobField(ControllerRequest newRequest, ControllerResponse newResponse, JDBCDataObject dbobj, String fieldName) throws ControllerException, NonHandleableException(Code) Sends a BLOB field to the client browser. Parameters:   newRequest - The ControllerRequest object Parameters:   newResponse - The ControllerResponse object Parameters:   dbobj - the DBObject to get the BLOB field from. Parameters:   fieldName - the name of the field in the DBObject to send throws:   ControllerException - upon error throws:   NonHandleableException - upon fatal error sendMediaObjectField protected void sendMediaObjectField(ControllerRequest newRequest, ControllerResponse newResponse, MediaDBObject dbobj, String fieldName) throws ControllerException, NonHandleableException(Code) Sends a Media DBObject's BLOB fields to the client. Parameters:   newRequest - the controller request object Parameters:   newResponse - the controller response object (Must be in a Servletenvironment) Parameters:   dbobj - THe Media DBObject derived class to send Parameters:   fieldName - the field name in the dbobject to send throws:   ControllerException - upon error throws:   NonHandleableException - upon fatal error sendStream protected void sendStream(InputStream is, ServletResponse response) throws java.io.IOException(Code) Sends the given stream to the client servlet output stream. Parameters:   is - The InputStream to send to the client. Parameters:   response - The ServletResponse by which to get the OutputStream. throws:   java.io.IOException - upon error getting the OutputStream tothe client. Fields inherited from com.jcorporate.expresso.services.controller.dbmaint.DynamicCmd protected boolean countTotalRecords(Code)(Java Doc) public static String masterObjKey(Code)(Java Doc) protected boolean showNext(Code)(Java Doc) protected boolean showPrev(Code)(Java Doc) Methods inherited from com.jcorporate.expresso.services.controller.dbmaint.DynamicCmd protected void addParams(Transition t) throws ControllerException(Code)(Java Doc) protected String decode(String orig)(Code)(Java Doc) protected String getControllerName() throws ControllerException(Code)(Java Doc) protected DBObject getCurrentDBObj() throws ControllerException(Code)(Java Doc) protected DataObject getDataObject() throws ControllerException(Code)(Java Doc) protected String getFieldsParam() throws ControllerException(Code)(Java Doc) protected Map getFixedFields() throws ControllerException(Code)(Java Doc) protected String getKeyParameter(DataObject srcDBObj) throws ControllerException(Code)(Java Doc) protected DataObject getMyDataObject()(Code)(Java Doc) public int getPageNumber() throws ControllerException(Code)(Java Doc) protected String getSearchParam() throws ControllerException(Code)(Java Doc) protected void initializeDBObj() throws ControllerException(Code)(Java Doc) protected boolean isKeyField(String fieldName) throws DBException, ControllerException(Code)(Java Doc) protected DataObject retrieveMyDBObject() throws DBException, ControllerException(Code)(Java Doc) public void run(ControllerRequest newParams, ControllerResponse newResponse) throws ControllerException, NonHandleableException(Code)(Java Doc) protected void setFields(DataObject myDBObj, String fieldPairs) throws DBException(Code)(Java Doc) protected void setFieldsParam(String newParam)(Code)(Java Doc) protected void setMyDataObject(DataObject myDBObj)(Code)(Java Doc) protected void setSearchParam(String newParam)(Code)(Java Doc) protected void showBlobViewLink(String fieldName, DataObject dbobj, Input myElement, String controller) throws DBException, ControllerException(Code)(Java Doc) protected synchronized void showEditLink(String fieldName, String oneFieldValue, DataObject currentRecord, Output myElement) throws DBException, ControllerException(Code)(Java Doc) protected synchronized void showEditLink(String fieldName, String oneFieldValue, DataObject currentRecord, Output myElement, String controller) throws DBException, ControllerException(Code)(Java Doc) protected void showOptions() throws DBException, ControllerException(Code)(Java Doc) protected void showUserName(String theDescrip) throws ControllerException(Code)(Java Doc)