org.apache.solr.internal.csv

Class CharBuffer



  • public class CharBuffer
    extends Object
    A simple StringBuffer replacement that aims to reduce copying as much as possible. The buffer grows as necessary. This class is not thread safe.
    • Constructor Summary

      Constructors 
      Constructor and Description
      CharBuffer()
      Creates a new CharBuffer with an initial capacity of 32 characters.
      CharBuffer(int length)
      Creates a new CharBuffer with an initial capacity of length characters.
    • Constructor Detail

      • CharBuffer

        public CharBuffer()
        Creates a new CharBuffer with an initial capacity of 32 characters.
      • CharBuffer

        public CharBuffer(int length)
        Creates a new CharBuffer with an initial capacity of length characters.
    • Method Detail

      • clear

        public void clear()
        Empties the buffer. The capacity still remains the same, so no memory is freed.
      • length

        public int length()
        Returns the number of characters in the buffer.
        Returns:
        the number of characters
      • capacity

        public int capacity()
        Returns the current capacity of the buffer.
        Returns:
        the maximum number of characters that can be stored in this buffer without resizing it.
      • append

        public void append(CharBuffer cb)
        Appends the contents of cb to the end of this CharBuffer.
        Parameters:
        cb - the CharBuffer to append or null
      • append

        public void append(String s)
        Appends s to the end of this CharBuffer. This method involves copying the new data once!
        Parameters:
        s - the String to append or null
      • append

        public void append(StringBuffer sb)
        Appends sb to the end of this CharBuffer. This method involves copying the new data once!
        Parameters:
        sb - the StringBuffer to append or null
      • append

        public void append(char[] data)
        Appends data to the end of this CharBuffer. This method involves copying the new data once!
        Parameters:
        data - the char[] to append or null
      • append

        public void append(char data)
        Appends a single character to the end of this CharBuffer. This method involves copying the new data once!
        Parameters:
        data - the char to append
      • shrink

        public void shrink()
        Shrinks the capacity of the buffer to the current length if necessary. This method involves copying the data once!
      • getCharacters

        public char[] getCharacters()
        Returns the contents of the buffer as a char[]. The returned array may be the internal array of the buffer, so the caller must take care when modifying it. This method allows to avoid copying if the caller knows the exact capacity before.
      • charAt

        public char charAt(int pos)
        Returns the character at the specified position.
      • toString

        public String toString()
        Converts the contents of the buffer into a StringBuffer. This method involves copying the new data once!
        Overrides:
        toString in class Object
      • provideCapacity

        public void provideCapacity(int capacity)
        Copies the data into a new array of at least capacity size.