cascading.pattern.datafield
Class CategoricalDataField

java.lang.Object
  cascading.pattern.datafield.DataField
      cascading.pattern.datafield.CategoricalDataField

All Implemented Interfaces:

Serializable

public class CategoricalDataField
extends DataField

Class CategoricalDataField represent a field with a fixed set of possible values.

For example, if the field name is SIZE, it could have three possible categories, small, medium, and large.

Order of categories is retained so that indexes into the internal list of categories can be used to speed up some operations.

See Also:

Serialized Form

Field Summary

protected List<String>

categories

Fields inherited from class cascading.pattern.datafield.DataField

name, type

Constructor Summary

CategoricalDataField(CategoricalDataField dataField, String... categories)

CategoricalDataField(Fields fields, List<String> categories)

CategoricalDataField(Fields fields, String... categories)

CategoricalDataField(String name, Type type, List<String> categories)

CategoricalDataField(String name, Type type, String... categories)

Method Summary

List<String>

getCategories() Gets an unmodifiable list of the current categories.

Methods inherited from class cascading.pattern.datafield.DataField

getName, getType, toString

Methods inherited from class java.lang.Object

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

Field Detail

categories

protected List<String> categories

Constructor Detail

CategoricalDataField

public CategoricalDataField(CategoricalDataField dataField,
                            String... categories)

CategoricalDataField

public CategoricalDataField(Fields fields,
                            String... categories)

CategoricalDataField

public CategoricalDataField(Fields fields,
                            List<String> categories)

CategoricalDataField

public CategoricalDataField(String name,
                            Type type,
                            String... categories)

CategoricalDataField

public CategoricalDataField(String name,
                            Type type,
                            List<String> categories)

Method Detail

getCategories

public List<String> getCategories()

Gets an unmodifiable list of the current categories.

Returns:

the categories