Package org.apache.solr.schema

Class EnumFieldType

java.lang.Object

org.apache.solr.schema.FieldProperties

org.apache.solr.schema.FieldType

org.apache.solr.schema.PrimitiveFieldType

org.apache.solr.schema.AbstractEnumField

org.apache.solr.schema.EnumFieldType

public class EnumFieldType
extends AbstractEnumField

Field type for support of string values with custom sort order.

Nested Class Summary

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

AbstractEnumField.EnumMapping

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

FieldType.DefaultAnalyzer, FieldType.MultiValueSelector

Field Summary

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

enumMapping

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

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

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

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

Constructor Summary

Constructors

Constructor	Description
EnumFieldType()

Method Summary

Modifier and Type	Method	Description
org.apache.lucene.index.IndexableField	createField(SchemaField field, Object value)	Used for adding a document when a field needs to be created from a type and a string.
List<org.apache.lucene.index.IndexableField>	createFields(SchemaField sf, Object value)	Given a SchemaField, create one or more IndexableField instances
org.apache.lucene.queries.function.ValueSource	getSingleValueSource(FieldType.MultiValueSelector choice, SchemaField field, QParser parser)	Method for dynamically building a ValueSource based on a single value of a multivalued field.
org.apache.lucene.search.SortField	getSortField(SchemaField field, boolean top)	Returns the SortField instance that should be used to sort fields of this type.
protected org.apache.lucene.search.Query	getSpecializedRangeQuery(QParser parser, SchemaField field, String min, String max, boolean minInclusive, boolean maxInclusive)	Returns a Query instance for doing range searches on this field type.
UninvertingReader.Type	getUninversionType(SchemaField sf)	If DocValues is not enabled for a field, but it's indexed, docvalues can be constructed on the fly (uninverted, aka fieldcache) on the first request to sort, facet, etc.
String	indexedToReadable(String indexedForm)	Given an indexed term, return the human readable representation
org.apache.lucene.util.CharsRef	indexedToReadable(org.apache.lucene.util.BytesRef input, org.apache.lucene.util.CharsRefBuilder output)	Given an indexed term, append the human readable representation
void	readableToIndexed(CharSequence val, org.apache.lucene.util.BytesRefBuilder result)	Given the readable value, return the term value that will match it.
String	storedToIndexed(org.apache.lucene.index.IndexableField f)	Given the stored field, return the indexed form
EnumFieldValue	toObject(SchemaField sf, org.apache.lucene.util.BytesRef term)

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

getEnumMapping, getNumberType, getValueSource, init, isTokenized, readableToIndexed, toExternal, toInternal, toNativeType, toObject, write

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

checkSupportsDocValues, getDefaultMultiValueSelectorForSort

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

checkSchemaField, createField, getAnalyzerProperties, getClassArg, getDocValuesFormat, getExistenceQuery, getFieldQuery, getFieldTermQuery, getIndexAnalyzer, getNamedPropertyValues, getNonFieldPropertyArgs, getNumericSort, getPostingsFormat, getPrefixQuery, getQueryAnalyzer, getRangeQuery, getRewriteMethod, getSetQuery, getSimilarity, getSimilarityFactory, getSortedNumericSortField, getSortedSetSortField, getSortField, getSpecializedExistenceQuery, getStringSort, getTypeName, hasProperty, isExplicitAnalyzer, isExplicitQueryAnalyzer, isMultiValued, isPointField, isPolyField, isUtf8Field, marshalBase64SortValue, marshalSortValue, marshalStringSortValue, multiValuedFieldCache, restrictProps, setArgs, setIndexAnalyzer, setIsExplicitAnalyzer, setIsExplicitQueryAnalyzer, setQueryAnalyzer, setSimilarity, storedToReadable, supportsAnalyzers, toString, treatUnboundedRangeAsExistence, unmarshalBase64SortValue, unmarshalSortValue, unmarshalStringSortValue, useDocValuesAsStored, write

Methods inherited from class java.lang.Object

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

Constructor Detail

EnumFieldType

public EnumFieldType()

Method Detail

getUninversionType

public UninvertingReader.Type getUninversionType(SchemaField sf)

Description copied from class: FieldType

If DocValues is not enabled for a field, but it's indexed, docvalues can be constructed on the fly (uninverted, aka fieldcache) on the first request to sort, facet, etc. This specifies the structure to use.

This method will not be used if the field is (effectively) uninvertible="false"

Specified by:

getUninversionType in class FieldType

Parameters:

sf - field instance

Returns:

type to uninvert, or null (to disallow uninversion for the field)

See Also:

SchemaField.isUninvertible()

getSpecializedRangeQuery

protected org.apache.lucene.search.Query getSpecializedRangeQuery(QParser parser,
                                                                  SchemaField field,
                                                                  String min,
                                                                  String max,
                                                                  boolean minInclusive,
                                                                  boolean maxInclusive)

Description copied from class: FieldType

Returns a Query instance for doing range searches on this field type. SolrQueryParser currently passes part1 and part2 as null if they are '*' respectively. minInclusive and maxInclusive are both true currently by SolrQueryParser but that may change in the future. Also, other QueryParser implementations may have different semantics.

Sub-classes should override this method to provide their own range query implementation. They should strive to handle nulls in part1 and/or part2 as well as unequal minInclusive and maxInclusive parameters gracefully.

This method does not, and should not, check for or handle existence queries, please look at FieldType.getRangeQuery(org.apache.solr.search.QParser, org.apache.solr.schema.SchemaField, java.lang.String, java.lang.String, boolean, boolean) for that logic.

Overrides:

getSpecializedRangeQuery in class FieldType

Parameters:

parser - the QParser calling the method

field - the schema field

min - the lower boundary of the range, nulls are allowed.

max - the upper boundary of the range, nulls are allowed

minInclusive - whether the minimum of the range is inclusive or not

maxInclusive - whether the maximum of the range is inclusive or not

Returns:

a Query instance to perform range search according to given parameters

readableToIndexed

public void readableToIndexed(CharSequence val,
                              org.apache.lucene.util.BytesRefBuilder result)

Description copied from class: FieldType

Given the readable value, return the term value that will match it. This method will modify the size and length of the result parameter and write from offset 0

Overrides:

readableToIndexed in class FieldType

indexedToReadable

public String indexedToReadable(String indexedForm)

Description copied from class: FieldType

Given an indexed term, return the human readable representation

Overrides:

indexedToReadable in class FieldType

indexedToReadable

public org.apache.lucene.util.CharsRef indexedToReadable(org.apache.lucene.util.BytesRef input,
                                                         org.apache.lucene.util.CharsRefBuilder output)

Description copied from class: FieldType

Given an indexed term, append the human readable representation

Overrides:

indexedToReadable in class FieldType

toObject

public EnumFieldValue toObject(SchemaField sf,
                               org.apache.lucene.util.BytesRef term)

Overrides:

toObject in class FieldType

storedToIndexed

public String storedToIndexed(org.apache.lucene.index.IndexableField f)

Description copied from class: FieldType

Given the stored field, return the indexed form

Overrides:

storedToIndexed in class FieldType

createField

public org.apache.lucene.index.IndexableField createField(SchemaField field,
                                                          Object value)

Description copied from class: FieldType

Used for adding a document when a field needs to be created from a type and a string.

By default, the indexed value is the same as the stored value (taken from toInternal()). Having a different representation for external, internal, and indexed would present quite a few problems given the current Lucene architecture. An analyzer for adding docs would need to translate internal->indexed while an analyzer for querying would need to translate external->indexed.

The only other alternative to having internal==indexed would be to have internal==external. In this case, toInternal should convert to the indexed representation, toExternal() should do nothing, and createField() should *not* call toInternal, but use the external value and set tokenized=true to get Lucene to convert to the internal(indexed) form. :TODO: clean up and clarify this explanation.

Overrides:

createField in class FieldType

See Also:

FieldType.toInternal(java.lang.String)

createFields

public List<org.apache.lucene.index.IndexableField> createFields(SchemaField sf,
                                                                 Object value)

Description copied from class: FieldType

Given a SchemaField, create one or more IndexableField instances

Overrides:

createFields in class FieldType

Parameters:

sf - the SchemaField

value - The value to add to the field

Returns:

An array of IndexableField

See Also:

FieldType.createField(SchemaField, Object), FieldType.isPolyField()

getSingleValueSource

public final org.apache.lucene.queries.function.ValueSource getSingleValueSource(FieldType.MultiValueSelector choice,
                                                                                 SchemaField field,
                                                                                 QParser parser)

Description copied from class: FieldType

Method for dynamically building a ValueSource based on a single value of a multivalued field.

The default implementation throws an error except in the trivial case where this method is used on a SchemaField that is in fact not-multivalued, in which case it delegates to FieldType.getValueSource(org.apache.solr.schema.SchemaField, org.apache.solr.search.QParser)

Overrides:

getSingleValueSource in class FieldType

See Also:

FieldType.MultiValueSelector

getSortField

public org.apache.lucene.search.SortField getSortField(SchemaField field,
                                                       boolean top)

Description copied from class: FieldType

Returns the SortField instance that should be used to sort fields of this type.

Overrides:

getSortField in class AbstractEnumField

See Also:

SchemaField.checkSortability(), FieldType.getStringSort(org.apache.solr.schema.SchemaField, boolean), FieldType.getNumericSort(org.apache.solr.schema.SchemaField, org.apache.solr.schema.NumberType, boolean)