org.apache.uima.fit.factory

Class JCasFactory

java.lang.Object

org.apache.uima.fit.factory.JCasFactory

public final class JCasFactory
extends Object

Convenience methods to create JCas objects.

Method Summary

Modifier and Type	Method and Description
static JCas	createJCas() Creates a new JCas.
static JCas	createJCas(String... typeSystemDescriptorNames) Creates a new JCas from type system descriptor files found by name.
static JCas	createJCas(String fileName, TypeSystemDescription typeSystemDescription) This method creates a new JCas and loads the contents of an XMI or XCAS file into it.
static JCas	createJCas(TypeSystemDescription typeSystemDescription) Create a new JCas for the given type system description.
static JCas	createJCasFromPath(String... typeSystemDescriptorPaths) Creates a new JCas from type system descriptor files.
static JCas	createText(String aText) Creates a new JCas with the given text.
static JCas	createText(String aText, String aLanguage) Creates a new JCas with the given text and language.

Methods inherited from class java.lang.Object

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

Method Detail

createText

public static JCas createText(String aText)
                       throws UIMAException

Creates a new JCas with the given text. The type system is detected automatically using TypeSystemDescriptionFactory.createTypeSystemDescription(). Type priorities are detected automatically using TypePrioritiesFactory.createTypePriorities(). Indexes are detected automatically using FsIndexFactory.createFsIndexCollection().

Returns:

a new JCas

Throws:

UIMAException - if the JCas could not be initialized

createText

public static JCas createText(String aText,
                              String aLanguage)
                       throws UIMAException

Creates a new JCas with the given text and language. The type system is detected automatically using TypeSystemDescriptionFactory.createTypeSystemDescription(). Type priorities are detected automatically using TypePrioritiesFactory.createTypePriorities(). Indexes are detected automatically using FsIndexFactory.createFsIndexCollection().

Returns:

a new JCas

Throws:

UIMAException - if the JCas could not be initialized

createJCas

public static JCas createJCas()
                       throws UIMAException

Creates a new JCas. The type system is detected automatically using TypeSystemDescriptionFactory.createTypeSystemDescription(). Type priorities are detected automatically using TypePrioritiesFactory.createTypePriorities(). Indexes are detected automatically using FsIndexFactory.createFsIndexCollection().

Returns:

a new JCas

Throws:

UIMAException - if the JCas could not be initialized

createJCas

public static JCas createJCas(String... typeSystemDescriptorNames)
                       throws UIMAException

Creates a new JCas from type system descriptor files found by name. No auto-detection for type priorities, or indexes is performed.

Parameters:

typeSystemDescriptorNames - names of the type system descriptors on the classpath used to initialize the JCas (in Java notation, e.g. "my.package.TypeSystem" without the ".xml" extension)

Returns:

a new JCas

Throws:

UIMAException - if the JCas could not be initialized

createJCasFromPath

public static JCas createJCasFromPath(String... typeSystemDescriptorPaths)
                               throws UIMAException

Creates a new JCas from type system descriptor files. No auto-detection for type priorities, or indexes is performed.

Parameters:

typeSystemDescriptorPaths - paths to type system descriptor files

Returns:

a new JCas

Throws:

UIMAException - if the JCas could not be initialized

createJCas

public static JCas createJCas(TypeSystemDescription typeSystemDescription)
                       throws UIMAException

Create a new JCas for the given type system description. No auto-detection type priorities, or indexes is performed.

Parameters:

typeSystemDescription - a type system description to initialize the JCas

Returns:

a new JCas

Throws:

UIMAException - if the JCas could not be initialized

createJCas

public static JCas createJCas(String fileName,
                              TypeSystemDescription typeSystemDescription)
                       throws UIMAException,
                              IOException

This method creates a new JCas and loads the contents of an XMI or XCAS file into it.

Parameters:

fileName - a file name for the serialized CAS data

typeSystemDescription - a type system description to initialize the JCas

Returns:

a new JCas

Throws:

UIMAException - if the JCas could not be initialized

IOException - if there is a problem reading the file