org.apache.solr.update.processor

## Class AbstractDefaultValueUpdateProcessorFactory

- java.lang.Object
- - org.apache.solr.update.processor.UpdateRequestProcessorFactory
  - - org.apache.solr.update.processor.AbstractDefaultValueUpdateProcessorFactory

- All Implemented Interfaces:
    NamedListInitializedPlugin
  Direct Known Subclasses:
    DefaultValueUpdateProcessorFactory, TimestampUpdateProcessorFactory

      public abstract class AbstractDefaultValueUpdateProcessorFactory
      extends UpdateRequestProcessorFactory

  Base class that can be extended by any `UpdateRequestProcessorFactory` designed to add a default value to the document in an `AddUpdateCommand` when that field is not already specified.

  This base class handles initialization of the `fieldName` init param, and provides an `AbstractDefaultValueUpdateProcessorFactory.DefaultValueUpdateProcessor` that Factory subclasses may choose to return from their `getInstance` implementation.

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from class org.apache.solr.update.processor.UpdateRequestProcessorFactory

      `UpdateRequestProcessorFactory.RunAlways`

  - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected String` | `fieldName`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `AbstractDefaultValueUpdateProcessorFactory()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `init(NamedList args)`

    - ### Methods inherited from class org.apache.solr.update.processor.UpdateRequestProcessorFactory

      `getInstance`

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

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

- - ### Field Detail

    - #### fieldName

          protected String fieldName

  - ### Constructor Detail

    - #### AbstractDefaultValueUpdateProcessorFactory

          public AbstractDefaultValueUpdateProcessorFactory()

  - ### Method Detail

    - #### init

          public void init(NamedList args)

      Specified by:
        `init` in interface `NamedListInitializedPlugin`
      Overrides:
        `init` in class `UpdateRequestProcessorFactory`

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