Package org.flexdock.util

Class TypedHashtable

java.lang.Object
java.util.Dictionary
java.util.Hashtable
org.flexdock.util.TypedHashtable
All Implemented Interfaces:
Serializable, Cloneable, Map
Direct Known Subclasses:
BasicDockablePropertySet, BasicDockingPortPropertySet
public class TypedHashtable extends Hashtable
Author:
Christopher Butler
See Also:

  • Constructor Summary

    Constructors
    Constructor
    Description
    TypedHashtable()
    Constructs a new, empty TypedHashtable with a default initial capacity (11) and load factor of 0.75.
    TypedHashtable(int initialCapacity)
    Constructs a new, empty TypedHashtable with the specified initial capacity and default load factor of 0.75.
    TypedHashtable(int initialCapacity, float loadFactor)
    Constructs a new, empty TypedHashtable with the specified initial capacity and the specified load factor.
    TypedHashtable(Map t)
    Constructs a new TypedHashtable with the same mappings as the given Map.

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    get(Object key, boolean defaultValue)
    Returns the boolean value associated with the specified key in this hashtable.
    byte
    get(Object key, byte defaultValue)
    Returns the byte value associated with the specified key in this hashtable.
    char
    get(Object key, char defaultValue)
    Returns the char value associated with the specified key in this hashtable.
    double
    get(Object key, double defaultValue)
    Returns the double value associated with the specified key in this hashtable.
    float
    get(Object key, float defaultValue)
    Returns the float value associated with the specified key in this hashtable.
    int
    get(Object key, int defaultValue)
    Returns the int value associated with the specified key in this hashtable.
    long
    get(Object key, long defaultValue)
    Returns the long value associated with the specified key in this hashtable.
    short
    get(Object key, short defaultValue)
    Returns the short value associated with the specified key in this hashtable.
    Boolean
    getBoolean(Object key)
    Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.Boolean before returning.
    Byte
    getByte(Object key)
    Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.Byte before returning.
    Character
    getChar(Object key)
    Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.Character before returning.
    Double
    getDouble(Object key)
    Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.Double before returning.
    Float
    getFloat(Object key)
    Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.Float before returning.
    Integer
    getInt(Object key)
    Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.Integer before returning.
    Long
    getLong(Object key)
    Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.Long before returning.
    Short
    getShort(Object key)
    Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.Short before returning.
    String
    getString(Object key)
    Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.String before returning.
    void
    put(Object key, boolean value)
    Maps the specified key to the specified boolean value in this hashtable.
    void
    put(Object key, byte value)
    Maps the specified key to the specified byte value in this hashtable.
    void
    put(Object key, char value)
    Maps the specified key to the specified char value in this hashtable.
    void
    put(Object key, double value)
    Maps the specified key to the specified double value in this hashtable.
    void
    put(Object key, float value)
    Maps the specified key to the specified float value in this hashtable.
    void
    put(Object key, int value)
    Maps the specified key to the specified int value in this hashtable.
    void
    put(Object key, long value)
    Maps the specified key to the specified long value in this hashtable.
    void
    put(Object key, short value)
    Maps the specified key to the specified short value in this hashtable.
    Object
    put(Object key, Object value)
    Maps the specified key to the specified value in this hashtable.

    Methods inherited from class java.util.Hashtable

    clear, clone, compute, computeIfAbsent, computeIfPresent, contains, containsKey, containsValue, elements, entrySet, equals, forEach, get, getOrDefault, hashCode, isEmpty, keys, keySet, merge, putAll, putIfAbsent, rehash, remove, remove, replace, replace, replaceAll, size, toString, values

    Methods inherited from class java.lang.Object

    finalize, getClass, notify, notifyAll, wait, wait, wait

  • Constructor Details

    • TypedHashtable

      public TypedHashtable()
      Constructs a new, empty TypedHashtable with a default initial capacity (11) and load factor of 0.75.

    • TypedHashtable

      public TypedHashtable(int initialCapacity)
      Constructs a new, empty TypedHashtable with the specified initial capacity and default load factor of 0.75.
      Parameters:
      initialCapacity - the initial capacity of the hashtable.
      Throws:
      IllegalArgumentException - if the initial capacity is less than zero.

    • TypedHashtable

      public TypedHashtable(int initialCapacity, float loadFactor)
      Constructs a new, empty TypedHashtable with the specified initial capacity and the specified load factor.
      Parameters:
      initialCapacity - the initial capacity of the hashtable.
      loadFactor - the load factor of the hashtable.
      Throws:
      IllegalArgumentException - if the initial capacity is less than zero, or if the load factor is nonpositive.

    • TypedHashtable

      public TypedHashtable(Map t)
      Constructs a new TypedHashtable with the same mappings as the given Map. The hashtable is created with an initial capacity sufficient to hold the mappings in the given Map and a default load factor of 0.75.
      Parameters:
      t - the map whose mappings are to be placed in this map.
      Throws:
      NullPointerException - if the specified map is null.

  • Method Details

    • put

      public void put(Object key, boolean value)
      Maps the specified key to the specified boolean value in this hashtable. Since hashtables require Object values, this method will put either Boolean.TRUE or Boolean.FALSE in the hashtable. If key is null then this method returns with no action taken.
      Parameters:
      key - the hashtable key.
      value - the boolean value to be mapped to the specified key.
      See Also:

    • put

      public void put(Object key, byte value)
      Maps the specified key to the specified byte value in this hashtable. Since hashtables require Object values, this method will wrap the specified byte in a java.lang.Byte before inserting. If key is null then this method returns with no action taken.
      Parameters:
      key - the hashtable key.
      value - the byte value to be mapped to the specified key.
      See Also:

    • put

      public void put(Object key, short value)
      Maps the specified key to the specified short value in this hashtable. Since hashtables require Object values, this method will wrap the specified short in a java.lang.Short before inserting. If key is null then this method returns with no action taken.
      Parameters:
      key - the hashtable key.
      value - the short value to be mapped to the specified key.
      See Also:

    • put

      public void put(Object key, int value)
      Maps the specified key to the specified int value in this hashtable. Since hashtables require Object values, this method will wrap the specified int in a java.lang.Integer before inserting. If key is null then this method returns with no action taken.
      Parameters:
      key - the hashtable key.
      value - the int value to be mapped to the specified key.
      See Also:

    • put

      public void put(Object key, long value)
      Maps the specified key to the specified long value in this hashtable. Since hashtables require Object values, this method will wrap the specified long in a java.lang.Long before inserting. If key is null then this method returns with no action taken.
      Parameters:
      key - the hashtable key.
      value - the long value to be mapped to the specified key.
      See Also:

    • put

      public void put(Object key, float value)
      Maps the specified key to the specified float value in this hashtable. Since hashtables require Object values, this method will wrap the specified float in a java.lang.Float before inserting. If key is null then this method returns with no action taken.
      Parameters:
      key - the hashtable key.
      value - the float value to be mapped to the specified key.
      See Also:

    • put

      public void put(Object key, double value)
      Maps the specified key to the specified double value in this hashtable. Since hashtables require Object values, this method will wrap the specified double in a java.lang.Double before inserting. If key is null then this method returns with no action taken.
      Parameters:
      key - the hashtable key.
      value - the double value to be mapped to the specified key.
      See Also:

    • put

      public void put(Object key, char value)
      Maps the specified key to the specified char value in this hashtable. Since hashtables require Object values, this method will wrap the specified char in a java.lang.Character before inserting. If key is null then this method returns with no action taken.
      Parameters:
      key - the hashtable key.
      value - the char value to be mapped to the specified key.
      See Also:

    • put

      public Object put(Object key, Object value)
      Maps the specified key to the specified value in this hashtable. If the key is null, then this method returns with no action taken. If the value is null, then this method removes any existing mapping in the hashtable for the specified key by calling remove(Object key). The value can be retrieved by calling the get(Object key) method with a key that is equal to the original key.
      Specified by:
      put in interface Map
      Overrides:
      put in class Hashtable
      Parameters:
      key - the hashtable key.
      value - the value.
      See Also:

    • get

      public boolean get(Object key, boolean defaultValue)
      Returns the boolean value associated with the specified key in this hashtable. This method attempts to cast the value in this hashtable for the specified key to a java.lang.Boolean and invoke its booleanValue() method. If the key does not exist in the hashtable, or it maps to a non-Boolean value, then this method returns the specified defaultValue.
      Parameters:
      key - the hashtable key
      defaultValue - the value to return if a valid boolean cannot be found for the specified key
      Returns:
      the boolean value associated with the specified key in this hashtable.
      See Also:

    • get

      public byte get(Object key, byte defaultValue)
      Returns the byte value associated with the specified key in this hashtable. This method attempts to cast the value in this hashtable for the specified key to a java.lang.Byte and invoke its byteValue() method. If the key does not exist in the hashtable, or it maps to a non-Byte value, then this method returns the specified defaultValue.
      Parameters:
      key - the hashtable key
      defaultValue - the value to return if a valid byte cannot be found for the specified key
      Returns:
      the byte value associated with the specified key in this hashtable.
      See Also:

    • get

      public short get(Object key, short defaultValue)
      Returns the short value associated with the specified key in this hashtable. This method attempts to cast the value in this hashtable for the specified key to a java.lang.Short and invoke its shortValue() method. If the key does not exist in the hashtable, or it maps to a non-Short value, then this method returns the specified defaultValue.
      Parameters:
      key - the hashtable key
      defaultValue - the value to return if a valid short cannot be found for the specified key
      Returns:
      the short value associated with the specified key in this hashtable.
      See Also:

    • get

      public int get(Object key, int defaultValue)
      Returns the int value associated with the specified key in this hashtable. This method attempts to cast the value in this hashtable for the specified key to a java.lang.Integer and invoke its intValue() method. If the key does not exist in the hashtable, or it maps to a non-Integer value, then this method returns the specified defaultValue.
      Parameters:
      key - the hashtable key
      defaultValue - the value to return if a valid int cannot be found for the specified key
      Returns:
      the int value associated with the specified key in this hashtable.
      See Also:

    • get

      public long get(Object key, long defaultValue)
      Returns the long value associated with the specified key in this hashtable. This method attempts to cast the value in this hashtable for the specified key to a java.lang.Long and invoke its longValue() method. If the key does not exist in the hashtable, or it maps to a non-Long value, then this method returns the specified defaultValue.
      Parameters:
      key - the hashtable key
      defaultValue - the value to return if a valid long cannot be found for the specified key
      Returns:
      the long value associated with the specified key in this hashtable.
      See Also:

    • get

      public float get(Object key, float defaultValue)
      Returns the float value associated with the specified key in this hashtable. This method attempts to cast the value in this hashtable for the specified key to a java.lang.Float and invoke its floatValue() method. If the key does not exist in the hashtable, or it maps to a non-Float value, then this method returns the specified defaultValue.
      Parameters:
      key - the hashtable key
      defaultValue - the value to return if a valid float cannot be found for the specified key
      Returns:
      the float value associated with the specified key in this hashtable.
      See Also:

    • get

      public double get(Object key, double defaultValue)
      Returns the double value associated with the specified key in this hashtable. This method attempts to cast the value in this hashtable for the specified key to a java.lang.Double and invoke its doubleValue() method. If the key does not exist in the hashtable, or it maps to a non-Double value, then this method returns the specified defaultValue.
      Parameters:
      key - the hashtable key
      defaultValue - the value to return if a valid double cannot be found for the specified key
      Returns:
      the double value associated with the specified key in this hashtable.
      See Also:

    • get

      public char get(Object key, char defaultValue)
      Returns the char value associated with the specified key in this hashtable. This method attempts to cast the value in this hashtable for the specified key to a java.lang.Character and invoke its charValue() method. If the key does not exist in the hashtable, or it maps to a non-Character value, then this method returns the specified defaultValue.
      Parameters:
      key - the hashtable key
      defaultValue - the value to return if a valid char cannot be found for the specified key
      Returns:
      the char value associated with the specified key in this hashtable.
      See Also:

    • getString

      public String getString(Object key)
      Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.String before returning. If the specified key maps to an object type other than a String value, then this method throws a ClassCastException.
      Parameters:
      key - a key in the hashtable.
      Returns:
      the String value to which the key is mapped in this hashtable; null if the key is not mapped to any value in this hashtable.
      Throws:
      NullPointerException - if the key is null.
      ClassCastException - if the returns value is not a String
      See Also:

    • getBoolean

      public Boolean getBoolean(Object key)
      Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.Boolean before returning. If the specified key maps to an object type other than a Boolean value, then this method throws a ClassCastException.
      Parameters:
      key - a key in the hashtable.
      Returns:
      the Boolean value to which the key is mapped in this hashtable; null if the key is not mapped to any value in this hashtable.
      Throws:
      NullPointerException - if the key is null.
      ClassCastException - if the returns value is not a Boolean
      See Also:

    • getByte

      public Byte getByte(Object key)
      Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.Byte before returning. If the specified key maps to an object type other than a Byte value, then this method throws a ClassCastException.
      Parameters:
      key - a key in the hashtable.
      Returns:
      the Byte value to which the key is mapped in this hashtable; null if the key is not mapped to any value in this hashtable.
      Throws:
      NullPointerException - if the key is null.
      ClassCastException - if the returns value is not a Byte
      See Also:

    • getShort

      public Short getShort(Object key)
      Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.Short before returning. If the specified key maps to an object type other than a Short value, then this method throws a ClassCastException.
      Parameters:
      key - a key in the hashtable.
      Returns:
      the Short value to which the key is mapped in this hashtable; null if the key is not mapped to any value in this hashtable.
      Throws:
      NullPointerException - if the key is null.
      ClassCastException - if the returns value is not a Short
      See Also:

    • getInt

      public Integer getInt(Object key)
      Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.Integer before returning. If the specified key maps to an object type other than a Integer value, then this method throws a ClassCastException.
      Parameters:
      key - a key in the hashtable.
      Returns:
      the Integer value to which the key is mapped in this hashtable; null if the key is not mapped to any value in this hashtable.
      Throws:
      NullPointerException - if the key is null.
      ClassCastException - if the returns value is not a Integer
      See Also:

    • getLong

      public Long getLong(Object key)
      Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.Long before returning. If the specified key maps to an object type other than a Long value, then this method throws a ClassCastException.
      Parameters:
      key - a key in the hashtable.
      Returns:
      the Long value to which the key is mapped in this hashtable; null if the key is not mapped to any value in this hashtable.
      Throws:
      NullPointerException - if the key is null.
      ClassCastException - if the returns value is not a Long
      See Also:

    • getFloat

      public Float getFloat(Object key)
      Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.Float before returning. If the specified key maps to an object type other than a Float value, then this method throws a ClassCastException.
      Parameters:
      key - a key in the hashtable.
      Returns:
      the Float value to which the key is mapped in this hashtable; null if the key is not mapped to any value in this hashtable.
      Throws:
      NullPointerException - if the key is null.
      ClassCastException - if the returns value is not a Float
      See Also:

    • getDouble

      public Double getDouble(Object key)
      Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.Double before returning. If the specified key maps to an object type other than a Double value, then this method throws a ClassCastException.
      Parameters:
      key - a key in the hashtable.
      Returns:
      the Double value to which the key is mapped in this hashtable; null if the key is not mapped to any value in this hashtable.
      Throws:
      NullPointerException - if the key is null.
      ClassCastException - if the returns value is not a Double
      See Also:

    • getChar

      public Character getChar(Object key)
      Retrieves the value to which the specified key is mapped in this hashtable and casts to a java.lang.Character before returning. If the specified key maps to an object type other than a Character value, then this method throws a ClassCastException.
      Parameters:
      key - a key in the hashtable.
      Returns:
      the Character value to which the key is mapped in this hashtable; null if the key is not mapped to any value in this hashtable.
      Throws:
      NullPointerException - if the key is null.
      ClassCastException - if the returns value is not a Character
      See Also: