org.apache.uima.resource.metadata.impl

## Class SimplePrecondition_impl

- java.lang.Object
- - org.apache.uima.resource.metadata.impl.MetaDataObject_impl
  - - org.apache.uima.resource.metadata.impl.SimplePrecondition_impl

- All Implemented Interfaces:
    Serializable, Cloneable, MetaDataObject, Precondition, SimplePrecondition, XMLizable
  Direct Known Subclasses:
    LanguagePrecondition_impl, MimeTypePrecondition_impl

      public class SimplePrecondition_impl
      extends MetaDataObject_impl
      implements SimplePrecondition

  Reference implementation of `SimplePrecondition`.
  See Also:
    Serialized Form

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from class org.apache.uima.resource.metadata.impl.MetaDataObject_impl

      `MetaDataObject_impl.MetaDataAttr, MetaDataObject_impl.SerialContext, MetaDataObject_impl.Serializer`

  - ### Field Summary

    - ### Fields inherited from class org.apache.uima.resource.metadata.impl.MetaDataObject_impl

      `serialContext`

    - ### Fields inherited from interface org.apache.uima.resource.metadata.SimplePrecondition

      `ELEMENT_OF, EQUAL, LANGUAGE_SUBSUMED, PRECONDITION_TYPE`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `SimplePrecondition_impl()`

  - ### Method Summary

    All Methods Static Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `evaluate(CAS aCAS)` Determines if this precondition is satisfied by a CAS.
    `Object` | `getComparisonValue()` Retrieves the literal value to which features' values will be compared.
    `boolean` | `getDefault()` Retrieves the default value for this precondition.
    `String` | `getFeatureName()` Gets the name of the feature to be tested.
    `String` | `getFsIndexName()` Retrieves the name of the FeatureStructure index containing FeatureStructures to be tested by this precondition.
    `FSMatchConstraint` | `getFsMatchConstraint()` Retrieves the FSMatchConstraint that determines which CAS feature structures will be tested by this precondition.
    `String` | `getPreconditionType()` Gets the type of this precondition.
    `String` | `getPredicate()` Retrieves the predicate used to compare the test value to the comparison value.
    `protected XmlizationInfo` | `getXmlizationInfo()` To be implemented by subclasses to return information describing how to represent this object in XML.
    `protected static boolean` | `isValidPredicateName(Object aName)` Determines whether the given String is a valid name a predicate defined by this class.
    `void` | `setComparisonValue(Object aValue)` Sets the literal value to which features' values will be compared.
    `void` | `setDefault(boolean aDefault)` Sets the default value for this precondition.
    `void` | `setFeatureName(String aFeatureName)` Sets the name of the feature to be tested.
    `void` | `setFsIndexName(String aIndexName)` Sets the name of the FeatureStructure index containing FeatureStructures to be tested by this precondition.
    `void` | `setFsMatchConstraint(FSMatchConstraint aConstraint)` Sets the FSMatchConstraint that determines which CAS feature structures will be tested by this precondition.
    `void` | `setPredicate(String aPredicate)` Sets the predicate used to compare the test value to the comparison value.

    - ### Methods inherited from class org.apache.uima.resource.metadata.impl.MetaDataObject_impl

      `buildFromXMLElement, buildFromXMLElement, clone, equals, getAdditionalAttributes, getAttributeClass, getAttributeValue, getInfoset, getMatchingNode, getPropertyDescriptors, getPropertyXmlInfo, getRelativePathBase, getSerialContext, getSourceUrl, getSourceUrlString, getWrapperClass, getXMLAttributes, hashCode, isModifiable, listAttributes, readArrayPropertyValueFromXMLElement, readMapPropertyFromXml, readPropertyValueFromXMLElement, readUnknownPropertyValueFromXMLElement, resolveSettings, setAttributeValue, setInfoset, setSourceUrl, setSourceUrlIfNull, toString, toXML, toXML, toXML, toXML, valueIsNullOrEmptyArray, writeArrayPropertyAsElement, writeMapPropertyToXml, writePropertyAsElement`

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

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

    - ### Methods inherited from interface org.apache.uima.resource.metadata.MetaDataObject

      `clone, equals, getAttributeValue, getSourceUrl, getSourceUrlString, isModifiable, listAttributes, setAttributeValue, setSourceUrl`

    - ### Methods inherited from interface org.apache.uima.util.XMLizable

      `buildFromXMLElement, buildFromXMLElement, toXML, toXML, toXML, toXML`

- - ### Constructor Detail

    - #### SimplePrecondition_impl

          public SimplePrecondition_impl()

  - ### Method Detail

    - #### getPreconditionType

          public String getPreconditionType()

      Description copied from interface: `SimplePrecondition`
      Gets the type of this precondition. Each sub-interface of `Precondition` has its own standard type identifier String. These identifier Strings are used instead of Java class names in order to ease portability of metadata to other languages.
      Specified by:
        `getPreconditionType` in interface `Precondition`
      Specified by:
        `getPreconditionType` in interface `SimplePrecondition`
      Returns:
        `SimplePrecondition.PRECONDITION_TYPE`
      See Also:
        `Precondition.getPreconditionType()`

    - #### getDefault

          public boolean getDefault()

      Description copied from interface: `SimplePrecondition`
      Retrieves the default value for this precondition. This is the value returned if there is no applicable test value in the CAS.
      Specified by:
        `getDefault` in interface `SimplePrecondition`
      Returns:
        the default value
      See Also:
        `SimplePrecondition.getDefault()`

    - #### getFeatureName

          public String getFeatureName()

      Description copied from interface: `SimplePrecondition`
      Gets the name of the feature to be tested.
      Specified by:
        `getFeatureName` in interface `SimplePrecondition`
      Returns:
        the feature name, `null` if none
      See Also:
        `SimplePrecondition.getFeatureName()`

    - #### getFsIndexName

          public String getFsIndexName()

      Description copied from interface: `SimplePrecondition`
      Retrieves the name of the FeatureStructure index containing FeatureStructures to be tested by this precondition.
      Specified by:
        `getFsIndexName` in interface `SimplePrecondition`
      Returns:
        the name of the FS index, `null` if the default annotation index should be used
      See Also:
        `SimplePrecondition.getFsIndexName()`

    - #### getFsMatchConstraint

          public FSMatchConstraint getFsMatchConstraint()

      Description copied from interface: `SimplePrecondition`
      Retrieves the FSMatchConstraint that determines which CAS feature structures will be tested by this precondition.
      Specified by:
        `getFsMatchConstraint` in interface `SimplePrecondition`
      Returns:
        the FS match constraint, `null` if none
      See Also:
        `SimplePrecondition.getFsMatchConstraint()`

    - #### setDefault

          public void setDefault(boolean aDefault)

      Description copied from interface: `SimplePrecondition`
      Sets the default value for this precondition. This is the value returned if there is no applicable test value in the CAS.
      Specified by:
        `setDefault` in interface `SimplePrecondition`
      Parameters:
        `aDefault` - the default value
      See Also:
        `SimplePrecondition.setDefault(boolean)`

    - #### setFeatureName

          public void setFeatureName(String aFeatureName)

      Description copied from interface: `SimplePrecondition`
      Sets the name of the feature to be tested.
      Specified by:
        `setFeatureName` in interface `SimplePrecondition`
      Parameters:
        `aFeatureName` - the feature name, `null` if none
      See Also:
        `SimplePrecondition.setFeatureName(java.lang.String)`

    - #### setFsIndexName

          public void setFsIndexName(String aIndexName)

      Description copied from interface: `SimplePrecondition`
      Sets the name of the FeatureStructure index containing FeatureStructures to be tested by this precondition.
      Specified by:
        `setFsIndexName` in interface `SimplePrecondition`
      Parameters:
        `aIndexName` - the name of the FS index, `null` if the default annotation index should be used
      See Also:
        `SimplePrecondition.setFsIndexName(java.lang.String)`

    - #### setFsMatchConstraint

          public void setFsMatchConstraint(FSMatchConstraint aConstraint)

      Description copied from interface: `SimplePrecondition`
      Sets the FSMatchConstraint that determines which CAS feature structures will be tested by this precondition.
      Specified by:
        `setFsMatchConstraint` in interface `SimplePrecondition`
      Parameters:
        `aConstraint` - the FS match constraint, `null` if none
      See Also:
        `SimplePrecondition.setFsMatchConstraint(org.apache.uima.cas.FSMatchConstraint)`

    - #### evaluate

          public boolean evaluate(CAS aCAS)

      Description copied from interface: `Precondition`
      Determines if this precondition is satisfied by a CAS.
      Specified by:
        `evaluate` in interface `Precondition`
      Parameters:
        `aCAS` - the CAS against which to evaluate this precondition
      Returns:
        true if and only if the CAS satisfies this precondition.
      See Also:
        `Precondition.evaluate(org.apache.uima.cas.CAS)`

    - #### getComparisonValue

          public Object getComparisonValue()

      Description copied from interface: `SimplePrecondition`
      Retrieves the literal value to which features' values will be compared.
      Specified by:
        `getComparisonValue` in interface `SimplePrecondition`
      Returns:
        the value, which must be a String, Integer, Float, Boolean or an array of one of those four types.
      See Also:
        `SimplePrecondition.getComparisonValue()`

    - #### setComparisonValue

          public void setComparisonValue(Object aValue)

      Description copied from interface: `SimplePrecondition`
      Sets the literal value to which features' values will be compared.
      Specified by:
        `setComparisonValue` in interface `SimplePrecondition`
      Parameters:
        `aValue` - the comparison value, which must be a String, Integer, Float, Boolean, or an array of one of those four types.
      See Also:
        `SimplePrecondition.setComparisonValue(Object)`

    - #### getPredicate

          public String getPredicate()

      Description copied from interface: `SimplePrecondition`
      Retrieves the predicate used to compare the test value to the comparison value.
      Specified by:
        `getPredicate` in interface `SimplePrecondition`
      Returns:
        a String that identifies the predicate used. This will always match one of the constants defined on this interface.
      See Also:
        `SimplePrecondition.getPredicate()`

    - #### setPredicate

          public void setPredicate(String aPredicate)

      Description copied from interface: `SimplePrecondition`
      Sets the predicate used to compare the test value to the comparison value.
      Specified by:
        `setPredicate` in interface `SimplePrecondition`
      Parameters:
        `aPredicate` - a String that identifies the predicate used. This must match one of the constants defined on this interface.
      See Also:
        `SimplePrecondition.setPredicate(String)`

    - #### isValidPredicateName

          protected static boolean isValidPredicateName(Object aName)

      Determines whether the given String is a valid name a predicate defined by this class. Valid predicate names are legal arguments to the `setPredicate(String)` method, and are defined by constants on the `SimplePrecondition` interface.
      Parameters:
        `aName` - an Object to test
      Returns:
        true if and only if `aName` is a `String` that is a valid predicate name.

    - #### getXmlizationInfo

          protected XmlizationInfo getXmlizationInfo()

      Description copied from class: `MetaDataObject_impl`
      To be implemented by subclasses to return information describing how to represent this object in XML.
      Specified by:
        `getXmlizationInfo` in class `MetaDataObject_impl`
      Returns:
        information defining this object's XML representation

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