org.springframework.beans.support

## Class MutableSortDefinition

- java.lang.Object
- - org.springframework.beans.support.MutableSortDefinition

- All Implemented Interfaces:
    Serializable, SortDefinition

      public class MutableSortDefinition
      extends Object
      implements SortDefinition, Serializable

  Mutable implementation of the `SortDefinition` interface. Supports toggling the ascending value on setting the same property again.
  Since:
    26.05.2003
  Author:
    Juergen Hoeller, Jean-Pierre Pawlak
  See Also:
    `setToggleAscendingOnProperty(boolean)`, Serialized Form

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `MutableSortDefinition()` Create an empty MutableSortDefinition, to be populated via its bean properties.
    `MutableSortDefinition(boolean toggleAscendingOnSameProperty)` Create a new MutableSortDefinition.
    `MutableSortDefinition(SortDefinition source)` Copy constructor: create a new MutableSortDefinition that mirrors the given sort definition.
    `MutableSortDefinition(String property, boolean ignoreCase, boolean ascending)` Create a MutableSortDefinition for the given settings.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `equals(Object other)`
    `String` | `getProperty()` Return the name of the bean property to compare.
    `int` | `hashCode()`
    `boolean` | `isAscending()` Return whether to sort ascending (true) or descending (false).
    `boolean` | `isIgnoreCase()` Return whether upper and lower case in String values should be ignored.
    `boolean` | `isToggleAscendingOnProperty()` Return whether to toggle the ascending flag if the same property gets set again (that is, `setProperty` gets called with already set property name again).
    `void` | `setAscending(boolean ascending)` Set whether to sort ascending (true) or descending (false).
    `void` | `setIgnoreCase(boolean ignoreCase)` Set whether upper and lower case in String values should be ignored.
    `void` | `setProperty(String property)` Set the property to compare.
    `void` | `setToggleAscendingOnProperty(boolean toggleAscendingOnProperty)` Set whether to toggle the ascending flag if the same property gets set again (that is, `setProperty(java.lang.String)` gets called with already set property name again).

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

      `clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### MutableSortDefinition

          public MutableSortDefinition()

      Create an empty MutableSortDefinition, to be populated via its bean properties.
      See Also:
        `setProperty(java.lang.String)`, `setIgnoreCase(boolean)`, `setAscending(boolean)`

    - #### MutableSortDefinition

          public MutableSortDefinition(SortDefinition source)

      Copy constructor: create a new MutableSortDefinition that mirrors the given sort definition.
      Parameters:
        `source` - the original sort definition

    - #### MutableSortDefinition

          public MutableSortDefinition(String property,
                                       boolean ignoreCase,
                                       boolean ascending)

      Create a MutableSortDefinition for the given settings.
      Parameters:
        `property` - the property to compare
        `ignoreCase` - whether upper and lower case in String values should be ignored
        `ascending` - whether to sort ascending (true) or descending (false)

    - #### MutableSortDefinition

          public MutableSortDefinition(boolean toggleAscendingOnSameProperty)

      Create a new MutableSortDefinition.
      Parameters:
        `toggleAscendingOnSameProperty` - whether to toggle the ascending flag if the same property gets set again (that is, `setProperty` gets called with already set property name again).

  - ### Method Detail

    - #### setProperty

          public void setProperty(String property)

      Set the property to compare.

      If the property was the same as the current, the sort is reversed if "toggleAscendingOnProperty" is activated, else simply ignored.

      See Also:
        `setToggleAscendingOnProperty(boolean)`

    - #### getProperty

          public String getProperty()

      Description copied from interface: `SortDefinition`
      Return the name of the bean property to compare. Can also be a nested bean property path.
      Specified by:
        `getProperty` in interface `SortDefinition`

    - #### setIgnoreCase

          public void setIgnoreCase(boolean ignoreCase)

      Set whether upper and lower case in String values should be ignored.

    - #### isIgnoreCase

          public boolean isIgnoreCase()

      Description copied from interface: `SortDefinition`
      Return whether upper and lower case in String values should be ignored.
      Specified by:
        `isIgnoreCase` in interface `SortDefinition`

    - #### setAscending

          public void setAscending(boolean ascending)

      Set whether to sort ascending (true) or descending (false).

    - #### isAscending

          public boolean isAscending()

      Description copied from interface: `SortDefinition`
      Return whether to sort ascending (true) or descending (false).
      Specified by:
        `isAscending` in interface `SortDefinition`

    - #### setToggleAscendingOnProperty

          public void setToggleAscendingOnProperty(boolean toggleAscendingOnProperty)

      Set whether to toggle the ascending flag if the same property gets set again (that is, `setProperty(java.lang.String)` gets called with already set property name again).

      This is particularly useful for parameter binding through a web request, where clicking on the field header again might be supposed to trigger a resort for the same field but opposite order.

    - #### isToggleAscendingOnProperty

          public boolean isToggleAscendingOnProperty()

      Return whether to toggle the ascending flag if the same property gets set again (that is, `setProperty` gets called with already set property name again).

    - #### equals

          public boolean equals(@Nullable
                                Object other)

      Overrides:
        `equals` in class `Object`

    - #### hashCode

          public int hashCode()

      Overrides:
        `hashCode` in class `Object`