org.apache.xerces.util

## Class ParserConfigurationSettings

- java.lang.Object
- - org.apache.xerces.util.ParserConfigurationSettings

- All Implemented Interfaces:
    org.apache.xerces.xni.parser.XMLComponentManager
  Direct Known Subclasses:
    BasicParserConfiguration, DOMConfigurationImpl, XML11Configuration, XML11DTDConfiguration, XML11NonValidatingConfiguration

      public class ParserConfigurationSettings
      extends java.lang.Object
      implements org.apache.xerces.xni.parser.XMLComponentManager

  This class implements the basic operations for managing parser configuration features and properties. This utility class can be used as a base class for parser configurations or separately to encapsulate a number of parser settings as a component manager.

  This class can be constructed with a "parent" settings object (in the form of an `XMLComponentManager`) that allows parser configuration settings to be "chained" together.

  Version:
    $Id: ParserConfigurationSettings.java 447241 2006-09-18 05:12:57Z mrglavas $
  Author:
    Andy Clark, IBM

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected java.util.HashMap` | `fFeatures` Features.
    `protected org.apache.xerces.xni.parser.XMLComponentManager` | `fParentSettings` Parent parser configuration settings.
    `protected java.util.HashMap` | `fProperties` Properties.
    `protected java.util.ArrayList` | `fRecognizedFeatures` Recognized features.
    `protected java.util.ArrayList` | `fRecognizedProperties` Recognized properties.
    `protected static java.lang.String` | `PARSER_SETTINGS`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `ParserConfigurationSettings()` Default Constructor.
    `ParserConfigurationSettings(org.apache.xerces.xni.parser.XMLComponentManager parent)` Constructs a parser configuration settings object with a parent settings object.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `addRecognizedFeatures(java.lang.String[] featureIds)` Allows a parser to add parser specific features to be recognized and managed by the parser configuration.
    `void` | `addRecognizedProperties(java.lang.String[] propertyIds)` Allows a parser to add parser specific properties to be recognized and managed by the parser configuration.
    `protected void` | `checkFeature(java.lang.String featureId)` Check a feature.
    `protected void` | `checkProperty(java.lang.String propertyId)` Check a property.
    `boolean` | `getFeature(java.lang.String featureId)` Returns the state of a feature.
    `java.lang.Object` | `getProperty(java.lang.String propertyId)` Returns the value of a property.
    `void` | `setFeature(java.lang.String featureId, boolean state)` Set the state of a feature.
    `void` | `setProperty(java.lang.String propertyId, java.lang.Object value)` setProperty

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

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

- - ### Field Detail

    - #### PARSER_SETTINGS

          protected static final java.lang.String PARSER_SETTINGS

      See Also:
        Constant Field Values

    - #### fRecognizedProperties

          protected java.util.ArrayList fRecognizedProperties

      Recognized properties.

    - #### fProperties

          protected java.util.HashMap fProperties

      Properties.

    - #### fRecognizedFeatures

          protected java.util.ArrayList fRecognizedFeatures

      Recognized features.

    - #### fFeatures

          protected java.util.HashMap fFeatures

      Features.

    - #### fParentSettings

          protected org.apache.xerces.xni.parser.XMLComponentManager fParentSettings

      Parent parser configuration settings.

  - ### Constructor Detail

    - #### ParserConfigurationSettings

          public ParserConfigurationSettings()

      Default Constructor.

    - #### ParserConfigurationSettings

          public ParserConfigurationSettings(org.apache.xerces.xni.parser.XMLComponentManager parent)

      Constructs a parser configuration settings object with a parent settings object.

  - ### Method Detail

    - #### addRecognizedFeatures

          public void addRecognizedFeatures(java.lang.String[] featureIds)

      Allows a parser to add parser specific features to be recognized and managed by the parser configuration.
      Parameters:
        `featureIds` - An array of the additional feature identifiers to be recognized.

    - #### setFeature

          public void setFeature(java.lang.String featureId,
                                 boolean state)
                          throws org.apache.xerces.xni.parser.XMLConfigurationException

      Set the state of a feature. Set the state of any feature in a SAX2 parser. The parser might not recognize the feature, and if it does recognize it, it might not be able to fulfill the request.
      Parameters:
        `featureId` - The unique identifier (URI) of the feature.
        `state` - The requested state of the feature (true or false).
      Throws:
        `org.apache.xerces.xni.parser.XMLConfigurationException` - If the requested feature is not known.

    - #### addRecognizedProperties

          public void addRecognizedProperties(java.lang.String[] propertyIds)

      Allows a parser to add parser specific properties to be recognized and managed by the parser configuration.
      Parameters:
        `propertyIds` - An array of the additional property identifiers to be recognized.

    - #### setProperty

          public void setProperty(java.lang.String propertyId,
                                  java.lang.Object value)
                           throws org.apache.xerces.xni.parser.XMLConfigurationException

      setProperty
      Parameters:
        `propertyId` -
        `value` -
      Throws:
        `org.apache.xerces.xni.parser.XMLConfigurationException` - If the requested feature is not known.

    - #### getFeature

          public boolean getFeature(java.lang.String featureId)
                             throws org.apache.xerces.xni.parser.XMLConfigurationException

      Returns the state of a feature.
      Specified by:
        `getFeature` in interface `org.apache.xerces.xni.parser.XMLComponentManager`
      Parameters:
        `featureId` - The feature identifier.
      Returns:
        true if the feature is supported
      Throws:
        `org.apache.xerces.xni.parser.XMLConfigurationException` - Thrown for configuration error. In general, components should only throw this exception if it is really a critical error.

    - #### getProperty

          public java.lang.Object getProperty(java.lang.String propertyId)
                                       throws org.apache.xerces.xni.parser.XMLConfigurationException

      Returns the value of a property.
      Specified by:
        `getProperty` in interface `org.apache.xerces.xni.parser.XMLComponentManager`
      Parameters:
        `propertyId` - The property identifier.
      Returns:
        the value of the property
      Throws:
        `org.apache.xerces.xni.parser.XMLConfigurationException` - Thrown for configuration error. In general, components should only throw this exception if it is really a critical error.

    - #### checkFeature

          protected void checkFeature(java.lang.String featureId)
                               throws org.apache.xerces.xni.parser.XMLConfigurationException

      Check a feature. If feature is known and supported, this method simply returns. Otherwise, the appropriate exception is thrown.
      Parameters:
        `featureId` - The unique identifier (URI) of the feature.
      Throws:
        `org.apache.xerces.xni.parser.XMLConfigurationException` - If the requested feature is not known.

    - #### checkProperty

          protected void checkProperty(java.lang.String propertyId)
                                throws org.apache.xerces.xni.parser.XMLConfigurationException

      Check a property. If the property is known and supported, this method simply returns. Otherwise, the appropriate exception is thrown.
      Parameters:
        `propertyId` - The unique identifier (URI) of the property being set.
      Throws:
        `org.apache.xerces.xni.parser.XMLConfigurationException` - If the requested feature is not known.

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