Package com.itextpdf.kernel.pdf.canvas.parser.listener

Class SimpleTextExtractionStrategy

java.lang.Object

com.itextpdf.kernel.pdf.canvas.parser.listener.SimpleTextExtractionStrategy

All Implemented Interfaces:

IEventListener, ITextExtractionStrategy

public class SimpleTextExtractionStrategy
extends java.lang.Object
implements ITextExtractionStrategy

Field Summary

Fields

Modifier and Type	Field	Description
private Vector	lastEnd
private Vector	lastStart
private java.lang.StringBuilder	result	used to store the resulting String.

Constructor Summary

Constructors

Constructor	Description
SimpleTextExtractionStrategy()

Method Summary

Modifier and Type	Method	Description
protected void	appendTextChunk(java.lang.CharSequence text)	Used to actually append text to the text results.
void	eventOccurred(IEventData data, EventType type)	Called when some event occurs during parsing a content stream.
java.lang.String	getResultantText()	Returns the result so far.
java.util.Set<EventType>	getSupportedEvents()	Provides the set of event types this listener supports.

Methods inherited from class java.lang.Object

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

Field Detail

lastStart

private Vector lastStart

lastEnd

private Vector lastEnd

result

private final java.lang.StringBuilder result

used to store the resulting String.

Constructor Detail

SimpleTextExtractionStrategy

public SimpleTextExtractionStrategy()

Method Detail

eventOccurred

public void eventOccurred(IEventData data,
                          EventType type)

Description copied from interface: IEventListener

Called when some event occurs during parsing a content stream.

Specified by:

eventOccurred in interface IEventListener

Parameters:

data - Combines the data required for processing corresponding event type.

type - Event type.

getSupportedEvents

public java.util.Set<EventType> getSupportedEvents()

Description copied from interface: IEventListener

Provides the set of event types this listener supports. Returns null if all possible event types are supported.

Specified by:

getSupportedEvents in interface IEventListener

Returns:

Set of event types supported by this listener or null if all possible event types are supported.

getResultantText

public java.lang.String getResultantText()

Returns the result so far.

Specified by:

getResultantText in interface ITextExtractionStrategy

Returns:

a String with the resulting text.

appendTextChunk

protected final void appendTextChunk(java.lang.CharSequence text)

Used to actually append text to the text results. Subclasses can use this to insert text that wouldn't normally be included in text parsing (e.g. result of OCR performed against image content)

Parameters:

text - the text to append to the text results accumulated so far