Package org.apache.tools.ant.util

## Class LazyHashtable<K,​V>

- java.lang.Object
- - java.util.Dictionary<K,​V>
  - - java.util.Hashtable<K,​V>
    - - org.apache.tools.ant.util.LazyHashtable<K,​V>

- All Implemented Interfaces:
    `java.io.Serializable`, `java.lang.Cloneable`, `java.util.Map<K,​V>`

      @Deprecated
      public class LazyHashtable<K,​V>
      extends java.util.Hashtable<K,​V>

  Deprecated.
  Hashtable implementation that allows delayed construction of expensive objects All operations that need access to the full list of objects will call initAll() first. Get and put are cheap.
  Since:
    Ant 1.6
  See Also:
    Serialized Form

- - ### Field Summary

    Fields
    Modifier and Type | Field | Description
    --- | --- | ---
    `protected boolean` | `initAllDone` | Deprecated.

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `LazyHashtable()` | Deprecated. No arg constructor.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods Deprecated Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `boolean` | `contains​(java.lang.Object value)` | Deprecated. Check if the table contains a particular value.
    `boolean` | `containsKey​(java.lang.Object value)` | Deprecated. Check if the table contains a particular key.
    `boolean` | `containsValue​(java.lang.Object value)` | Deprecated. Delegates to `contains`.
    `java.util.Enumeration<V>` | `elements()` | Deprecated. Get a enumeration over the elements.
    `protected void` | `initAll()` | Deprecated. Used to be part of init.
    `boolean` | `isEmpty()` | Deprecated. Check if the table is empty.
    `java.util.Enumeration<K>` | `keys()` | Deprecated. Get an enumeration over the keys.
    `int` | `size()` | Deprecated. Get the size of the table.

    - ### Methods inherited from class java.util.Hashtable

      `clear, clone, compute, computeIfAbsent, computeIfPresent, entrySet, equals, forEach, get, getOrDefault, hashCode, keySet, merge, put, putAll, putIfAbsent, rehash, remove, remove, replace, replace, replaceAll, toString, values`

    - ### Methods inherited from class java.lang.Object

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

- - ### Field Detail

    - #### initAllDone

          protected boolean initAllDone

      Deprecated.

  - ### Constructor Detail

    - #### LazyHashtable

          public LazyHashtable()

      Deprecated.
      No arg constructor.

  - ### Method Detail

    - #### initAll

          protected void initAll()

      Deprecated.
      Used to be part of init. It must be done once - but we delay it until we do need _all_ tasks. Otherwise we just get the tasks that we need, and avoid costly init.

    - #### elements

          public java.util.Enumeration<V> elements()

      Deprecated.
      Get a enumeration over the elements.
      Overrides:
        `elements` in class `java.util.Hashtable<K,​V>`
      Returns:
        an enumeration.

    - #### isEmpty

          public boolean isEmpty()

      Deprecated.
      Check if the table is empty.
      Specified by:
        `isEmpty` in interface `java.util.Map<K,​V>`
      Overrides:
        `isEmpty` in class `java.util.Hashtable<K,​V>`
      Returns:
        true if it is.

    - #### size

          public int size()

      Deprecated.
      Get the size of the table.
      Specified by:
        `size` in interface `java.util.Map<K,​V>`
      Overrides:
        `size` in class `java.util.Hashtable<K,​V>`
      Returns:
        the size.

    - #### contains

          public boolean contains​(java.lang.Object value)

      Deprecated.
      Check if the table contains a particular value.
      Overrides:
        `contains` in class `java.util.Hashtable<K,​V>`
      Parameters:
        `value` - the value to look for.
      Returns:
        true if the table contains the value.

    - #### containsKey

          public boolean containsKey​(java.lang.Object value)

      Deprecated.
      Check if the table contains a particular key.
      Specified by:
        `containsKey` in interface `java.util.Map<K,​V>`
      Overrides:
        `containsKey` in class `java.util.Hashtable<K,​V>`
      Parameters:
        `value` - the key to look for.
      Returns:
        true if the table contains key.

    - #### containsValue

          public boolean containsValue​(java.lang.Object value)

      Deprecated.
      Delegates to `contains`.
      Specified by:
        `containsValue` in interface `java.util.Map<K,​V>`
      Overrides:
        `containsValue` in class `java.util.Hashtable<K,​V>`
      Parameters:
        `value` - the value to look for.
      Returns:
        true if the table contains the value.

    - #### keys

          public java.util.Enumeration<K> keys()

      Deprecated.
      Get an enumeration over the keys.
      Overrides:
        `keys` in class `java.util.Hashtable<K,​V>`
      Returns:
        an enumeration.