Module org.apache.wicket.util
Package org.apache.wicket.util.diff

Class Chunk

java.lang.Object
org.apache.wicket.util.diff.ToString
org.apache.wicket.util.diff.Chunk
public class Chunk extends ToString
Holds a information about a part of the text involved in a differencing or patching operation.
Version:
$Id: Chunk.java,v 1.1 2006/03/12 00:24:21 juanca Exp $
Author:
Juanco Anez
See Also:

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected int
    anchor
     
    protected List<Object>
    chunk
     
    protected int
    count
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    Chunk(int pos, int count)
    Creates a chunk that doesn't copy the original text.
    Chunk(Object[] iseq, int pos, int count)
    Creates a chunk and saves a copy the original chunk's text.
    Chunk(Object[] iseq, int pos, int count, int offset)
    Creates a chunk that will be displaced in the resulting text, and saves a copy the original chunk's text.
    Chunk(List<Object> iseq, int pos, int count)
    Creates a chunk and saves a copy the original chunk's text.
    Chunk(List<Object> iseq, int pos, int count, int offset)
    Creates a chunk that will be displaced in the resulting text, and saves a copy the original chunk's text.

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    anchor()
    Returns the anchor position of the chunk.
    void
    applyAdd(int start, List<Object> target)
    Add the text of this chunk to the target at the given position.
    void
    applyDelete(List<Object> target)
    Delete this chunk from he given text.
    List<Object>
    chunk()
    Returns the text saved for this chunk.
    int
    first()
    Returns the index of the first line of the chunk.
    int
    last()
    Returns the index of the last line of the chunk.
    String
    rangeString()
    Provide a string representation of the numeric range of this chunk.
    void
    rangeString(StringBuilder s)
    Provide a string representation of the numeric range of this chunk.
    void
    rangeString(StringBuilder s, String separ)
    Provide a string representation of the numeric range of this chunk.
    int
    rcsfrom()
    Returns the from index of the chunk in RCS terms.
    int
    rcsto()
    Returns the to index of the chunk in RCS terms.
    int
    size()
    Returns the size of the chunk.
    static List<Object>
    slice(Object[] seq, int pos, int count)
    Retrieves a slice from an Object array.
    static <T> List<T>
    slice(List<T> seq, int pos, int count)
    Retrieves the specified part from a List.
    void
    toString(StringBuilder s)
    Provide a string image of the chunk using the an empty prefix and postfix.
    StringBuilder
    toString(StringBuilder s, String prefix, String postfix)
    Provide a string image of the chunk using the given prefix and postfix.
    boolean
    verify(List<Object> target)
    Verifies that this chunk's saved text matches the corresponding text in the given sequence.

    Methods inherited from class org.apache.wicket.util.diff.ToString

    arrayToString, arrayToString, stringToArray, toString

    Methods inherited from class java.lang.Object

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

  • Field Details

  • Constructor Details

    • Chunk

      public Chunk(int pos, int count)
      Creates a chunk that doesn't copy the original text.
      Parameters:
      pos - the start position in the text.
      count - the size of the chunk.

    • Chunk

      public Chunk(Object[] iseq, int pos, int count)
      Creates a chunk and saves a copy the original chunk's text.
      Parameters:
      iseq - the original text.
      pos - the start position in the text.
      count - the size of the chunk.

    • Chunk

      public Chunk(Object[] iseq, int pos, int count, int offset)
      Creates a chunk that will be displaced in the resulting text, and saves a copy the original chunk's text.
      Parameters:
      iseq - the original text.
      pos - the start position in the text.
      count - the size of the chunk.
      offset - the position the chunk should have in the resulting text.

    • Chunk

      public Chunk(List<Object> iseq, int pos, int count)
      Creates a chunk and saves a copy the original chunk's text.
      Parameters:
      iseq - the original text.
      pos - the start position in the text.
      count - the size of the chunk.

    • Chunk

      public Chunk(List<Object> iseq, int pos, int count, int offset)
      Creates a chunk that will be displaced in the resulting text, and saves a copy the original chunk's text.
      Parameters:
      iseq - the original text.
      pos - the start position in the text.
      count - the size of the chunk.
      offset - the position the chunk should have in the resulting text.

  • Method Details

    • anchor

      public int anchor()
      Returns the anchor position of the chunk.
      Returns:
      the anchor position.

    • size

      public int size()
      Returns the size of the chunk.
      Returns:
      the size.

    • first

      public int first()
      Returns the index of the first line of the chunk.
      Returns:
      int

    • last

      public int last()
      Returns the index of the last line of the chunk.
      Returns:
      int

    • rcsfrom

      public int rcsfrom()
      Returns the from index of the chunk in RCS terms.
      Returns:
      int

    • rcsto

      public int rcsto()
      Returns the to index of the chunk in RCS terms.
      Returns:
      int

    • chunk

      public List<Object> chunk()
      Returns the text saved for this chunk.
      Returns:
      the text.

    • verify

      public boolean verify(List<Object> target)
      Verifies that this chunk's saved text matches the corresponding text in the given sequence.
      Parameters:
      target - the sequence to verify against.
      Returns:
      true if the texts match.

    • applyDelete

      public void applyDelete(List<Object> target)
      Delete this chunk from he given text.
      Parameters:
      target - the text to delete from.

    • applyAdd

      public void applyAdd(int start, List<Object> target)
      Add the text of this chunk to the target at the given position.
      Parameters:
      start - where to add the text.
      target - the text to add to.

    • toString

      public void toString(StringBuilder s)
      Provide a string image of the chunk using the an empty prefix and postfix.
      Overrides:
      toString in class ToString
      Parameters:
      s -

    • toString

      public StringBuilder toString(StringBuilder s, String prefix, String postfix)
      Provide a string image of the chunk using the given prefix and postfix.
      Parameters:
      s - where the string image should be appended.
      prefix - the text that should prefix each line.
      postfix - the text that should end each line.
      Returns:
      StringBuilder

    • slice

      public static <T> List<T> slice(List<T> seq, int pos, int count)
      Retrieves the specified part from a List.
      Type Parameters:
      T - the type of objects contained in seq
      Parameters:
      seq - the list to retrieve a slice from.
      pos - the start position.
      count - the number of items in the slice.
      Returns:
      a List containing the specified items.

    • slice

      public static List<Object> slice(Object[] seq, int pos, int count)
      Retrieves a slice from an Object array.
      Parameters:
      seq - the list to retrieve a slice from.
      pos - the start position.
      count - the number of items in the slice.
      Returns:
      a List containing the specified items.

    • rangeString

      public String rangeString()
      Provide a string representation of the numeric range of this chunk.
      Returns:
      String

    • rangeString

      public void rangeString(StringBuilder s)
      Provide a string representation of the numeric range of this chunk.
      Parameters:
      s - where the string representation should be appended.

    • rangeString

      public void rangeString(StringBuilder s, String separ)
      Provide a string representation of the numeric range of this chunk.
      Parameters:
      s - where the string representation should be appended.
      separ - what to use as line separator.