org.apache.solr.schema

Class ICUCollationField

java.lang.Object

org.apache.solr.schema.FieldProperties

org.apache.solr.schema.FieldType

org.apache.solr.schema.ICUCollationField

public class ICUCollationField
extends FieldType

Field for collated sort keys. These can be used for locale-sensitive sort and range queries.

This field can be created in two ways:

• Based upon a system collator associated with a Locale.
• Based upon a tailored ruleset.

Using a System collator:

• locale: RFC 3066 locale ID (mandatory)
• strength: 'primary','secondary','tertiary', 'quaternary', or 'identical' (optional)
• decomposition: 'no', or 'canonical' (optional)

Using a Tailored ruleset:

• custom: UTF-8 text file containing rules supported by RuleBasedCollator (mandatory)
• strength: 'primary','secondary','tertiary', 'quaternary', or 'identical' (optional)
• decomposition: 'no' or 'canonical' (optional)

Expert options:

• alternate: 'shifted' or 'non-ignorable'. Can be used to ignore punctuation/whitespace.
• caseLevel: 'true' or 'false'. Useful with strength=primary to ignore accents but not case.
• caseFirst: 'lower' or 'upper'. Useful to control which is sorted first when case is not ignored.
• numeric: 'true' or 'false'. Digits are sorted according to numeric value, e.g. foobar-9 sorts before foobar-10
• variableTop: single character or contraction. Controls what is variable for 'alternate'

See Also:

Collator, ULocale, RuleBasedCollator

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.solr.schema.FieldType

FieldType.DefaultAnalyzer

Field Summary

Fields inherited from class org.apache.solr.schema.FieldType

ANALYZER, args, CHAR_FILTER, CHAR_FILTERS, CLASS_NAME, docValuesFormat, falseProperties, FILTER, FILTERS, INDEX, INDEX_ANALYZER, log, MULTI_TERM, MULTI_TERM_ANALYZER, POLY_FIELD_SEPARATOR, postingsFormat, properties, QUERY, QUERY_ANALYZER, queryAnalyzer, similarity, SIMILARITY, similarityFactory, TOKENIZER, trueProperties, TYPE, TYPE_NAME, typeName

Fields inherited from class org.apache.solr.schema.FieldProperties

BINARY, DOC_VALUES, INDEXED, MULTIVALUED, OMIT_NORMS, OMIT_POSITIONS, OMIT_TF_POSITIONS, REQUIRED, SORT_MISSING_FIRST, SORT_MISSING_LAST, STORE_OFFSETS, STORE_TERMOFFSETS, STORE_TERMPOSITIONS, STORE_TERMVECTORS, STORED, TOKENIZED

Constructor Summary

Constructors

Constructor and Description
ICUCollationField()

Method Summary

Methods

Modifier and Type	Method and Description
Analyzer	getAnalyzer()
Analyzer	getQueryAnalyzer()
Query	getRangeQuery(QParser parser, SchemaField field, String part1, String part2, boolean minInclusive, boolean maxInclusive)
SortField	getSortField(SchemaField field, boolean top)
protected void	init(IndexSchema schema, Map<String,String> args)
void	write(TextResponseWriter writer, String name, IndexableField f)

Methods inherited from class org.apache.solr.schema.FieldType

checkSchemaField, createField, createField, createFields, getAnalyzerProperties, getClassArg, getDocValuesFormat, getFieldQuery, getIndexOptions, getNamedPropertyValues, getNonFieldPropertyArgs, getNumericType, getPostingsFormat, getRewriteMethod, getSimilarity, getSimilarityFactory, getStringSort, getTypeName, getValueSource, hasProperty, indexedToReadable, indexedToReadable, isExplicitAnalyzer, isExplicitQueryAnalyzer, isMultiValued, isPolyField, isTokenized, multiValuedFieldCache, readableToIndexed, readableToIndexed, restrictProps, setAnalyzer, setArgs, setIsExplicitAnalyzer, setIsExplicitQueryAnalyzer, setQueryAnalyzer, setSimilarity, storedToIndexed, storedToReadable, toExternal, toInternal, toObject, toObject, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ICUCollationField

public ICUCollationField()

Method Detail

init

protected void init(IndexSchema schema,
        Map<String,String> args)

Overrides:

init in class FieldType

write

public void write(TextResponseWriter writer,
         String name,
         IndexableField f)
           throws IOException

Specified by:

write in class FieldType

Throws:

IOException

getSortField

public SortField getSortField(SchemaField field,
                     boolean top)

Specified by:

getSortField in class FieldType

getAnalyzer

public Analyzer getAnalyzer()

Overrides:

getAnalyzer in class FieldType

getQueryAnalyzer

public Analyzer getQueryAnalyzer()

Overrides:

getQueryAnalyzer in class FieldType

getRangeQuery

public Query getRangeQuery(QParser parser,
                  SchemaField field,
                  String part1,
                  String part2,
                  boolean minInclusive,
                  boolean maxInclusive)

Overrides:

getRangeQuery in class FieldType