org.apache.xerces.impl.xs.identity

## Class Selector.Matcher

- java.lang.Object
- - org.apache.xerces.impl.xs.identity.XPathMatcher
  - - org.apache.xerces.impl.xs.identity.Selector.Matcher

- Enclosing class:
    Selector

      public class Selector.Matcher
      extends XPathMatcher

  Selector matcher.
  Author:
    Andy Clark, IBM

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected int` | `fElementDepth` Element depth.
    `protected FieldActivator` | `fFieldActivator` Field activator.
    `protected int` | `fInitialDepth` Initial depth in the document at which this matcher was created.
    `protected int` | `fMatchedDepth` Depth at match.

    - ### Fields inherited from class org.apache.xerces.impl.xs.identity.XPathMatcher

      `DEBUG_ALL, DEBUG_ANY, DEBUG_MATCH, DEBUG_METHODS, DEBUG_METHODS2, DEBUG_METHODS3, DEBUG_STACK, fMatchedString, MATCHED, MATCHED_ATTRIBUTE, MATCHED_DESCENDANT, MATCHED_DESCENDANT_PREVIOUS`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `Matcher(Selector.XPath xpath, FieldActivator activator, int initialDepth)` Constructs a selector matcher.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `endElement(org.apache.xerces.xni.QName element, org.apache.xerces.xs.XSTypeDefinition type, boolean nillable, java.lang.Object actualValue, short valueType, org.apache.xerces.xs.ShortList itemValueType)`
    `IdentityConstraint` | `getIdentityConstraint()` Returns the identity constraint.
    `int` | `getInitialDepth()` get the initial depth at which this selector matched.
    `void` | `startDocumentFragment()` The start of the document fragment.
    `void` | `startElement(org.apache.xerces.xni.QName element, org.apache.xerces.xni.XMLAttributes attributes)` The start of an element.

    - ### Methods inherited from class org.apache.xerces.impl.xs.identity.XPathMatcher

      `handleContent, isMatched, matched, toString`

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

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

- - ### Field Detail

    - #### fFieldActivator

          protected final FieldActivator fFieldActivator

      Field activator.

    - #### fInitialDepth

          protected final int fInitialDepth

      Initial depth in the document at which this matcher was created.

    - #### fElementDepth

          protected int fElementDepth

      Element depth.

    - #### fMatchedDepth

          protected int fMatchedDepth

      Depth at match.

  - ### Constructor Detail

    - #### Matcher

          public Matcher(Selector.XPath xpath,
                         FieldActivator activator,
                         int initialDepth)

      Constructs a selector matcher.

  - ### Method Detail

    - #### startDocumentFragment

          public void startDocumentFragment()

      Description copied from class: `XPathMatcher`
      The start of the document fragment.
      Overrides:
        `startDocumentFragment` in class `XPathMatcher`

    - #### startElement

          public void startElement(org.apache.xerces.xni.QName element,
                                   org.apache.xerces.xni.XMLAttributes attributes)

      The start of an element. If the document specifies the start element by using an empty tag, then the startElement method will immediately be followed by the endElement method, with no intervening methods.
      Overrides:
        `startElement` in class `XPathMatcher`
      Parameters:
        `element` - The name of the element.
        `attributes` - The element attributes.

    - #### endElement

          public void endElement(org.apache.xerces.xni.QName element,
                                 org.apache.xerces.xs.XSTypeDefinition type,
                                 boolean nillable,
                                 java.lang.Object actualValue,
                                 short valueType,
                                 org.apache.xerces.xs.ShortList itemValueType)

      Overrides:
        `endElement` in class `XPathMatcher`
      Parameters:
        `element` - name of the element.
        `type` - content type of this element. IOW, the XML schema type of the `value`. Note that this may not be the type declared in the element declaration, but it is "the actual type". For example, if the XML is <foo xsi:type="xs:string">aaa</foo>, this parameter will be "xs:string".
        `nillable` - - nillable true if the element declaration is nillable.
        `actualValue` - - actual value the typed value of the content of this element.

    - #### getIdentityConstraint

          public IdentityConstraint getIdentityConstraint()

      Returns the identity constraint.

    - #### getInitialDepth

          public int getInitialDepth()

      get the initial depth at which this selector matched.

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