org.apache.uima.resource.metadata
Interface FsIndexKeyDescription

All Superinterfaces:

Cloneable, MetaDataObject, Serializable, XMLizable

public interface FsIndexKeyDescription
extends MetaDataObject

A description of a key defining a CAS feature structure index. This implements MetaDataObject, which implements XMLizable, so it can be serialized to and deserialized from an XML element.

Field Summary

static int	REVERSE_STANDARD_COMPARE Comparator that orders FeatureStructures according to the reverse order of their key features (the opposite order as that defined by STANDARD_COMPARE.
static int	STANDARD_COMPARE Comparator that orders FeatureStructures according to the standard order of their key features.

Method Summary

int	getComparator() Gets the comparator for this key.
String	getFeatureName() Gets the name of the key's Feature.
boolean	isTypePriority() Gets whether this is a special "type priority" key.
void	setComparator(int aComparator) Sets the comparator for this key.
void	setFeatureName(String aName) Sets the name of the key's Feature.
void	setTypePriority(boolean aTypePriority) Gets whether this is a special "type priority" key.

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

Field Detail

STANDARD_COMPARE

static final int STANDARD_COMPARE

Comparator that orders FeatureStructures according to the standard order of their key features. For integer and float values, this is the standard linear order, and for strings it is lexicographic order.

See Also:

Constant Field Values

REVERSE_STANDARD_COMPARE

static final int REVERSE_STANDARD_COMPARE

Comparator that orders FeatureStructures according to the reverse order of their key features (the opposite order as that defined by STANDARD_COMPARE.

See Also:

Constant Field Values

Method Detail

isTypePriority

boolean isTypePriority()

Gets whether this is a special "type priority" key. A type priority key indicates that the ordering of FeatureStructures in the index is based on the TypePriorities defined for that Analysis Engine.

Type priority keys ignore any values assigned to the featureName and comaprator properties.

Returns:

true if and only if this is a type priority key

setTypePriority

void setTypePriority(boolean aTypePriority)

Gets whether this is a special "type priority" key. A type priority key indicates that the ordering of FeatureStructures in the index is based on the TypePriorities defined for that Analysis Engine.

Type priority keys ignore any values assigned to the featureName and comaprator properties.

Parameters:

aTypePriority - true if and only if this is a type priority key

getFeatureName

String getFeatureName()

Gets the name of the key's Feature. FeatureStructures will be ordered in the index based on the value of this Feature.

Returns:

the name of this key's Feature

setFeatureName

void setFeatureName(String aName)

Sets the name of the key's Feature. FeatureStructures will be ordered in the index based on the value of this Feature.

Parameters:

aName - the name of this key's Feature

getComparator

int getComparator()

Gets the comparator for this key. This determines the ordering of FeatureStructures in the index. Valid values for this property are defined by constants on this interface.

Returns:

this key's comparator

setComparator

void setComparator(int aComparator)

Sets the comparator for this key. This determines the ordering of FeatureStructures in the index. Valid values for this property are defined by constants on this interface.

Parameters:

aComparator - this key's comparator