Class LengthLimitingDocument
- java.lang.Object
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- javax.swing.text.AbstractDocument
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- javax.swing.text.PlainDocument
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- org.pentaho.reporting.engine.classic.core.modules.gui.commonswing.LengthLimitingDocument
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- All Implemented Interfaces:
Serializable
,Document
public class LengthLimitingDocument extends PlainDocument
This Document restricts the size of the contained plain text to the given number of characters.- Author:
- Thomas Morgner
- See Also:
- Serialized Form
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Nested Class Summary
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Nested classes/interfaces inherited from class javax.swing.text.AbstractDocument
AbstractDocument.AbstractElement, AbstractDocument.AttributeContext, AbstractDocument.BranchElement, AbstractDocument.Content, AbstractDocument.DefaultDocumentEvent, AbstractDocument.ElementEdit, AbstractDocument.LeafElement
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Field Summary
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Fields inherited from class javax.swing.text.PlainDocument
lineLimitAttribute, tabSizeAttribute
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Fields inherited from class javax.swing.text.AbstractDocument
BAD_LOCATION, BidiElementName, ContentElementName, ElementNameAttribute, listenerList, ParagraphElementName, SectionElementName
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Fields inherited from interface javax.swing.text.Document
StreamDescriptionProperty, TitleProperty
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Constructor Summary
Constructors Constructor Description LengthLimitingDocument()
Creates a new LengthLimitingDocument, with no limitation.LengthLimitingDocument(int maxlen)
Creates a new LengthLimitingDocument with the given limitation.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
getMaxLength()
Returns the defined maximum number characters for this document.void
insertString(int offs, String str, AttributeSet a)
Inserts the string into the document.void
setMaxLength(int maxlen)
Sets the maximum number of characters for this document.-
Methods inherited from class javax.swing.text.PlainDocument
createDefaultRoot, getDefaultRootElement, getParagraphElement, insertUpdate, removeUpdate
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Methods inherited from class javax.swing.text.AbstractDocument
addDocumentListener, addUndoableEditListener, createBranchElement, createLeafElement, createPosition, dump, fireChangedUpdate, fireInsertUpdate, fireRemoveUpdate, fireUndoableEditUpdate, getAsynchronousLoadPriority, getAttributeContext, getBidiRootElement, getContent, getCurrentWriter, getDocumentFilter, getDocumentListeners, getDocumentProperties, getEndPosition, getLength, getListeners, getProperty, getRootElements, getStartPosition, getText, getText, getUndoableEditListeners, postRemoveUpdate, putProperty, readLock, readUnlock, remove, removeDocumentListener, removeUndoableEditListener, render, replace, setAsynchronousLoadPriority, setDocumentFilter, setDocumentProperties, writeLock, writeUnlock
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Constructor Detail
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LengthLimitingDocument
public LengthLimitingDocument()
Creates a new LengthLimitingDocument, with no limitation.
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LengthLimitingDocument
public LengthLimitingDocument(int maxlen)
Creates a new LengthLimitingDocument with the given limitation. No more than maxlen characters can be added to the document. If maxlen is negative, then no length check is performed.- Parameters:
maxlen
- the maximum number of elements in this document
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Method Detail
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setMaxLength
public void setMaxLength(int maxlen)
Sets the maximum number of characters for this document. Existing characters are not removed.- Parameters:
maxlen
- the maximum number of characters in this document.
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getMaxLength
public int getMaxLength()
Returns the defined maximum number characters for this document.- Returns:
- the maximum number of characters
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insertString
public void insertString(int offs, String str, AttributeSet a) throws BadLocationException
Inserts the string into the document. If the length of the document would violate the maximum characters restriction, then the string is cut down so that- Specified by:
insertString
in interfaceDocument
- Overrides:
insertString
in classPlainDocument
- Parameters:
offs
- the offset, where the string should be inserted into the documentstr
- the string that should be inserteda
- the attribute set assigned for the document- Throws:
BadLocationException
- if the offset is not correct
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