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oracle.adf.view.rich.export
Class FormatHandler

java.lang.Object
oracle.adf.view.rich.export.FormatHandler

public abstract class FormatHandler

extends Object

FormatHandler handles the format specific information when export is processed.

Constructor Summary

FormatHandler()

Method Summary

abstract void	beginWrapDetailItem(ExportContext exportContext, Object label) Overridable hook for format handler when we start exporting a component which is inside detail stamp.
protected Object	createExportTarget(ExportContext exportContext) Overridable hook for format handler to create export target.
abstract void	endDataElement(ExportContext exportContext) End a data element.
abstract void	endDetailStamp(ExportContext exportContext) End a detail stamp element.
abstract void	endRowElement(ExportContext exportContext) End a row element.
abstract void	endTableElement(ExportContext exportContext) End a table element.
abstract void	endTableHeaderElement(ExportContext exportContext) End a table header element.
abstract void	endWrapDetailItem(ExportContext exportContext) Overridable hook for format handler when we end exporting a component which is inside detail stamp.
abstract String	getContentType(ExportContext exportContext) Retrieves the content type of the content this format handler generates.
String	getDefaultCharset() Gets the default charset of this export format.
abstract String	getFormatType() Retrives the export type that this format handler handles.
int	getMaximumRecords(ExportContext exportContext) Get the maximum number of rows supported by this format handler.
abstract void	postContent(ExportContext exportContext) Overridable hook for each format handler to wrap anything after we end exporting the content.
abstract void	preContent(ExportContext exportContext) Overridable hook for each format handler to inject anything before we start exporting the content of the component.
abstract Object	setupExportTarget(ExportContext exportContext) Sets up the target where the format handler dump the exported content to.
abstract void	startDataElement(ExportContext exportContext) Start a data element.
abstract void	startDetailStamp(ExportContext exportContext) Start a detail stamp element.
abstract void	startRowElement(ExportContext exportContext) Start a row element.
abstract void	startTableElement(ExportContext exportContext) Start a table element.
abstract void	startTableHeaderElement(ExportContext exportContext) Start a table header element.
abstract void	writeColSpan(ExportContext exportContext, int colspan) Handles column span attribute if it is supported.
abstract void	writeRowSpan(ExportContext exportContext, int rowspan) Handles row span attribute if it is supoorted.
abstract void	writeText(ExportContext exportContext, Object text, String property) Writes text to the export target.

Methods inherited from class java.lang.Object

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

Constructor Detail

FormatHandler

public FormatHandler()

Method Detail

getFormatType

public abstract String getFormatType()

Retrives the export type that this format handler handles.

Returns:

the export type that this format handler handles.

getContentType

public abstract String getContentType(ExportContext exportContext)

Retrieves the content type of the content this format handler generates.

Returns:

the content type of the content this format handler generates.

getDefaultCharset

public String getDefaultCharset()

Gets the default charset of this export format. The default charset is utf-8.

Returns:

the default charset.

setupExportTarget

public abstract Object setupExportTarget(ExportContext exportContext)
                                  throws IOException

Sets up the target where the format handler dump the exported content to. Each diferent format handler will need different target: Writer or OutputStream or other target that is suitable for the export format supported.

Throws:

IOException

preContent

public abstract void preContent(ExportContext exportContext)
                         throws IOException

Overridable hook for each format handler to inject anything before we start exporting the content of the component.

Throws:

IOException

postContent

public abstract void postContent(ExportContext exportContext)
                          throws IOException

Overridable hook for each format handler to wrap anything after we end exporting the content.

Throws:

IOException

startTableElement

public abstract void startTableElement(ExportContext exportContext)
                                throws IOException

Start a table element.

Throws:

IOException

endTableElement

public abstract void endTableElement(ExportContext exportContext)
                              throws IOException

End a table element.

Throws:

IOException

startRowElement

public abstract void startRowElement(ExportContext exportContext)
                              throws IOException

Start a row element.

Throws:

IOException

endRowElement

public abstract void endRowElement(ExportContext exportContext)
                            throws IOException

End a row element.

Throws:

IOException

startTableHeaderElement

public abstract void startTableHeaderElement(ExportContext exportContext)
                                      throws IOException

Start a table header element.

Throws:

IOException

endTableHeaderElement

public abstract void endTableHeaderElement(ExportContext exportContext)
                                    throws IOException

End a table header element.

Throws:

IOException

startDataElement

public abstract void startDataElement(ExportContext exportContext)
                               throws IOException

Start a data element. This is the cell if we are exporting table/tree/treeTable.

Throws:

IOException

endDataElement

public abstract void endDataElement(ExportContext exportContext)
                             throws IOException

End a data element.

Throws:

IOException

startDetailStamp

public abstract void startDetailStamp(ExportContext exportContext)
                               throws IOException

Start a detail stamp element. Any special handling can be done for each handler before exporting a detail stamp component.

Throws:

IOException

endDetailStamp

public abstract void endDetailStamp(ExportContext exportContext)
                             throws IOException

End a detail stamp element. Any wrap-up handling can be done for each handler after exporting a detail stamp component.

Throws:

IOException

writeColSpan

public abstract void writeColSpan(ExportContext exportContext,
                                  int colspan)
                           throws IOException

Handles column span attribute if it is supported.

Throws:

IOException

writeRowSpan

public abstract void writeRowSpan(ExportContext exportContext,
                                  int rowspan)
                           throws IOException

Handles row span attribute if it is supoorted.

Throws:

IOException

writeText

public abstract void writeText(ExportContext exportContext,
                               Object text,
                               String property)
                        throws IOException

Writes text to the export target.

Parameters:

text - Text to be written

property - Name of the property of attribute (if any) of the component to be associated with

Throws:

IOException

beginWrapDetailItem

public abstract void beginWrapDetailItem(ExportContext exportContext,
                                         Object label)
                                  throws IOException

Overridable hook for format handler when we start exporting a component which is inside detail stamp.

Throws:

IOException

endWrapDetailItem

public abstract void endWrapDetailItem(ExportContext exportContext)
                                throws IOException

Overridable hook for format handler when we end exporting a component which is inside detail stamp.

Throws:

IOException

getMaximumRecords

public int getMaximumRecords(ExportContext exportContext)

Get the maximum number of rows supported by this format handler. -1 means no limit.

Returns:

maximum number of rows supported by this format handler.

createExportTarget

protected Object createExportTarget(ExportContext exportContext)
                             throws IOException

Overridable hook for format handler to create export target. Default implementation is to get a writer.

Throws:

IOException

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