Package org.apache.jackrabbit.vault.util.xml.xerces.util

Class SymbolTable

  • @Deprecated
public class SymbolTable
extends java.lang.Object
    Deprecated.
    Please avoid using package provided OOTB and/or migrate code to provide for this package in the custom code
    This class is a symbol table implementation that guarantees that strings used as identifiers are unique references. Multiple calls to addSymbol will always return the same string reference.

    The symbol table performs the same task as String.intern() with the following differences:

    • A new string object does not need to be created in order to retrieve a unique reference. Symbols can be added by using a series of characters in a character array.
    • Users of the symbol table can provide their own symbol hashing implementation. For example, a simple string hashing algorithm may fail to produce a balanced set of hashcodes for symbols that are mostly unique. Strings with similar leading characters are especially prone to this poor hashing behavior.
    See Also:
    SymbolHash

    • Constructor Summary

      Constructors 
      Constructor Description
      SymbolTable()
      Deprecated.
      Constructs a symbol table with a default number of buckets.
      SymbolTable​(int tableSize)
      Deprecated.
      Constructs a symbol table with a specified number of buckets.

    • Method Summary

      All Methods Instance Methods Concrete Methods Deprecated Methods 
      Modifier and Type Method Description
      java.lang.String addSymbol​(char[] buffer, int offset, int length)
      Deprecated.
      Adds the specified symbol to the symbol table and returns a reference to the unique symbol.
      java.lang.String addSymbol​(java.lang.String symbol)
      Deprecated.
      Adds the specified symbol to the symbol table and returns a reference to the unique symbol.
      boolean containsSymbol​(char[] buffer, int offset, int length)
      Deprecated.
      Returns true if the symbol table already contains the specified symbol.
      boolean containsSymbol​(java.lang.String symbol)
      Deprecated.
      Returns true if the symbol table already contains the specified symbol.
      int hash​(char[] buffer, int offset, int length)
      Deprecated.
      Returns a hashcode value for the specified symbol information.
      int hash​(java.lang.String symbol)
      Deprecated.
      Returns a hashcode value for the specified symbol.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • SymbolTable

        public SymbolTable()
        Deprecated.
        Constructs a symbol table with a default number of buckets.

      • SymbolTable

        public SymbolTable​(int tableSize)
        Deprecated.
        Constructs a symbol table with a specified number of buckets.

    • Method Detail

      • addSymbol

        public java.lang.String addSymbol​(java.lang.String symbol)
        Deprecated.
        Adds the specified symbol to the symbol table and returns a reference to the unique symbol. If the symbol already exists, the previous symbol reference is returned instead, in order guarantee that symbol references remain unique.
        Parameters:
        symbol - The new symbol.

      • addSymbol

        public java.lang.String addSymbol​(char[] buffer,
                                  int offset,
                                  int length)
        Deprecated.
        Adds the specified symbol to the symbol table and returns a reference to the unique symbol. If the symbol already exists, the previous symbol reference is returned instead, in order guarantee that symbol references remain unique.
        Parameters:
        buffer - The buffer containing the new symbol.
        offset - The offset into the buffer of the new symbol.
        length - The length of the new symbol in the buffer.

      • hash

        public int hash​(java.lang.String symbol)
        Deprecated.
        Returns a hashcode value for the specified symbol. The value returned by this method must be identical to the value returned by the hash(char[],int,int) method when called with the character array that comprises the symbol string.
        Parameters:
        symbol - The symbol to hash.

      • hash

        public int hash​(char[] buffer,
                int offset,
                int length)
        Deprecated.
        Returns a hashcode value for the specified symbol information. The value returned by this method must be identical to the value returned by the hash(String) method when called with the string object created from the symbol information.
        Parameters:
        buffer - The character buffer containing the symbol.
        offset - The offset into the character buffer of the start of the symbol.
        length - The length of the symbol.

      • containsSymbol

        public boolean containsSymbol​(java.lang.String symbol)
        Deprecated.
        Returns true if the symbol table already contains the specified symbol.
        Parameters:
        symbol - The symbol to look for.

      • containsSymbol

        public boolean containsSymbol​(char[] buffer,
                              int offset,
                              int length)
        Deprecated.
        Returns true if the symbol table already contains the specified symbol.
        Parameters:
        buffer - The buffer containing the symbol to look for.
        offset - The offset into the buffer.
        length - The length of the symbol in the buffer.