Interface History

All Superinterfaces:
Iterable<History.Entry>
All Known Implementing Classes:
DefaultHistory

public interface History extends Iterable<History.Entry>
Console history.
Since:
2.3
Author:
Marc Prud'hommeaux, Jason Dillon
  • Method Details

    • attach

      void attach(LineReader reader)
      Initialize the history for the given reader.
      Parameters:
      reader - the reader to attach to
    • load

      void load() throws IOException
      Load history.
      Throws:
      IOException - if a problem occurs
    • save

      void save() throws IOException
      Save history.
      Throws:
      IOException - if a problem occurs
    • write

      void write(Path file, boolean incremental) throws IOException
      Write history to the file. If incremental only the events that are new since the last incremental operation to the file are added.
      Parameters:
      file - History file
      incremental - If true incremental write operation is performed.
      Throws:
      IOException - if a problem occurs
    • append

      void append(Path file, boolean incremental) throws IOException
      Append history to the file. If incremental only the events that are new since the last incremental operation to the file are added.
      Parameters:
      file - History file
      incremental - If true incremental append operation is performed.
      Throws:
      IOException - if a problem occurs
    • read

      void read(Path file, boolean checkDuplicates) throws IOException
      Read history from the file. If checkDuplicates is true only the events that are not contained within the internal list are added.
      Parameters:
      file - History file
      checkDuplicates - If true, duplicate history entries will be discarded
      Throws:
      IOException - if a problem occurs
    • purge

      void purge() throws IOException
      Purge history.
      Throws:
      IOException - if a problem occurs
    • size

      int size()
    • isEmpty

      default boolean isEmpty()
    • index

      int index()
    • first

      int first()
    • last

      int last()
    • get

      String get(int index)
    • add

      default void add(String line)
    • add

      void add(Instant time, String line)
    • isPersistable

      default boolean isPersistable(History.Entry entry)
      Check if an entry should be persisted or not.
      Parameters:
      entry - the entry to check
      Returns:
      true if the given entry should be persisted, false otherwise
    • iterator

      ListIterator<History.Entry> iterator(int index)
    • iterator

      default ListIterator<History.Entry> iterator()
      Specified by:
      iterator in interface Iterable<History.Entry>
    • reverseIterator

      default Iterator<History.Entry> reverseIterator()
    • reverseIterator

      default Iterator<History.Entry> reverseIterator(int index)
    • current

      String current()
      Return the content of the current buffer.
      Returns:
      the content of the current buffer
    • previous

      boolean previous()
      Move the pointer to the previous element in the buffer.
      Returns:
      true if we successfully went to the previous element
    • next

      boolean next()
      Move the pointer to the next element in the buffer.
      Returns:
      true if we successfully went to the next element
    • moveToFirst

      boolean moveToFirst()
      Moves the history index to the first entry.
      Returns:
      Return false if there are no iterator in the history or if the history is already at the beginning.
    • moveToLast

      boolean moveToLast()
      This moves the history to the last entry. This entry is one position before the moveToEnd() position.
      Returns:
      Returns false if there were no history iterator or the history index was already at the last entry.
    • moveTo

      boolean moveTo(int index)
      Move to the specified index in the history
      Parameters:
      index - The index to move to.
      Returns:
      Returns true if the index was moved.
    • moveToEnd

      void moveToEnd()
      Move to the end of the history buffer. This will be a blank entry, after all of the other iterator.
    • resetIndex

      void resetIndex()
      Reset index after remove