# Package org.apache.uima.cas

Common Analysis System (CAS) Interfaces.

See: Description

- Interface Summary
  Interface | Description
  --- | ---
  AbstractCas | The base interface extended by all CAS (Common Analysis System) interfaces in the UIMA SDK.
  AnnotationBaseFS | Annotation Base API.
  ArrayFS | Feature structure array interface.
  BooleanArrayFS | Boolean array interface.
  ByteArrayFS | Byte array interface.
  CAS | Object-oriented CAS (Common Analysis System) API.
  CasOwner | Represents the "owner" of a CAS.
  CommonArrayFS | Common parts of the Array interfaces.
  ComponentInfo | Information that a CAS needs to know about the component that's currently operating on it.
  DoubleArrayFS | Double array interface.
  Feature | The interface that describes features in the type system.
  FeaturePath | Interface for a feature path.
  FeatureStructure | Interface for feature structures.
  FeatureValuePath | Deprecated use `FeaturePath`
  FloatArrayFS | Interface for CAS float arrays.
  FSBooleanConstraint | Interface for a boolean constraint.
  FSConstraint | Interface for feature structure constraints.
  FSFloatConstraint | Interface for a float constraint.
  FSIndex<T extends FeatureStructure> | Feature structure index access interface.
  FSIndexRepository | Repository of indexes over feature structures.
  FSIntConstraint | Interface for an integer constraint.
  FSIterator<T extends FeatureStructure> | Iterator over feature structures.
  FSMatchConstraint | Interface for feature structure matching constraints.
  FSStringConstraint | Interface for a String constraint.
  FSTypeConstraint | Interface for type constraint.
  IntArrayFS | Interface for CAS int arrays.
  LongArrayFS | Long array interface.
  Marker | An object obtained from the `CAS` that is used to query when FSs were created or modified with respect to the marker.
  ShortArrayFS | Short array interface.
  SofaFS | Interface for "Subject of Analysis" (Sofa) feature structures.
  SofaID | Deprecated As of v2.0, this is no longer needed.
  StringArrayFS | String array interface.
  Type | The interface describing types in the type system.
  TypeNameSpace | An object holding the namespace string for a type.
  TypeSystem | The interface to the type system.

- Class Summary
  Class | Description
  --- | ---
  AbstractCas_ImplBase | Base class from which CAS implementations should extend.
  ConstraintFactory | Methods to create `FSMatchConstraint`s for filtered iterators or other use.

- Enum Summary
  Enum | Description
  --- | ---
  SerialFormat | The various forms of serialization (typically of the CAS)
  TypeClass |

- Exception Summary
  Exception | Description
  --- | ---
  CASException | Exception class for package org.apache.uima.cas.
  CASRuntimeException | Runtime exception class for package org.apache.uima.cas.
  ParsingException | Deprecated The Constraint Parser is not supported in externally released versions of UIMA

## Package org.apache.uima.cas Description

Common Analysis System (CAS) Interfaces.

The CAS provides data modelling, definition and retrieval. The data model is stored in a type system. Use factory methods on a CAS object to create data structures. Also from a CAS, you can access the index repository to retrieve the data structure that have already been created.

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