Module java.desktop
Package javax.swing.text

Class DocumentFilter.FilterBypass

java.lang.Object
javax.swing.text.DocumentFilter.FilterBypass
Enclosing class:
DocumentFilter
public abstract static class DocumentFilter.FilterBypass extends Object
Used as a way to circumvent calling back into the Document to change it. Document implementations that wish to support a DocumentFilter must provide an implementation that will not callback into the DocumentFilter when the following methods are invoked from the DocumentFilter.
Since:
1.4

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    FilterBypass()
    Constructor for subclasses to call.

  • Method Summary

    Modifier and Type
    Method
    Description
    abstract Document
    getDocument()
    Returns the Document the mutation is occurring on.
    abstract void
    insertString(int offset, String string, AttributeSet attr)
    Inserts the specified text, bypassing the DocumentFilter.
    abstract void
    remove(int offset, int length)
    Removes the specified region of text, bypassing the DocumentFilter.
    abstract void
    replace(int offset, int length, String string, AttributeSet attrs)
    Deletes the region of text from offset to offset + length, and replaces it with text.

    Methods declared in class java.lang.Object

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

  • Constructor Details

    • FilterBypass

      protected FilterBypass()
      Constructor for subclasses to call.

  • Method Details

    • getDocument

      public abstract Document getDocument()
      Returns the Document the mutation is occurring on.
      Returns:
      Document that remove/insertString will operate on

    • remove

      public abstract void remove(int offset, int length) throws BadLocationException
      Removes the specified region of text, bypassing the DocumentFilter.
      Parameters:
      offset - the offset from the beginning >= 0
      length - the number of characters to remove >= 0
      Throws:
      BadLocationException - some portion of the removal range was not a valid part of the document. The location in the exception is the first bad position encountered.

    • insertString

      public abstract void insertString(int offset, String string, AttributeSet attr) throws BadLocationException
      Inserts the specified text, bypassing the DocumentFilter.
      Parameters:
      offset - the offset into the document to insert the content >= 0. All positions that track change at or after the given location will move.
      string - the string to insert
      attr - the attributes to associate with the inserted content. This may be null if there are no attributes.
      Throws:
      BadLocationException - the given insert position is not a valid position within the document

    • replace

      public abstract void replace(int offset, int length, String string, AttributeSet attrs) throws BadLocationException
      Deletes the region of text from offset to offset + length, and replaces it with text.
      Parameters:
      offset - Location in Document
      length - Length of text to delete
      string - Text to insert, null indicates no text to insert
      attrs - AttributeSet indicating attributes of inserted text, null is legal.
      Throws:
      BadLocationException - the given insert is not a valid position within the document