org.apache.solr.schema

Class PreAnalyzedField

java.lang.Object

org.apache.solr.schema.FieldProperties

org.apache.solr.schema.FieldType

org.apache.solr.schema.TextField

org.apache.solr.schema.PreAnalyzedField

All Implemented Interfaces:

HasImplicitIndexAnalyzer

public class PreAnalyzedField
extends TextField
implements HasImplicitIndexAnalyzer

Pre-analyzed field type provides a way to index a serialized token stream, optionally with an independent stored value of a field.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PreAnalyzedField.ParseResult This is a simple holder of a stored part and the collected states (tokens with attributes).
static interface	PreAnalyzedField.PreAnalyzedParser Parse the input and return the stored part and the tokens with attributes.

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

FieldType.DefaultAnalyzer, FieldType.MultiValueSelector

Field Summary

Fields

Modifier and Type	Field and Description
static String	PARSER_IMPL Init argument name.

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

autoGeneratePhraseQueries, multiTermAnalyzer

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

ANALYZER, args, CHAR_FILTER, CHAR_FILTERS, CLASS_NAME, docValuesFormat, falseProperties, FILTER, FILTERS, INDEX, INDEX_ANALYZER, MULTI_TERM, MULTI_TERM_ANALYZER, POLY_FIELD_SEPARATOR, postingsFormat, properties, QUERY, QUERY_ANALYZER, similarity, SIMILARITY, similarityFactory, 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, USE_DOCVALUES_AS_STORED

Constructor Summary

Constructors

Constructor and Description
PreAnalyzedField()

Method Summary

Modifier and Type	Method and Description
IndexableField	createField(SchemaField field, Object value, float boost) Used for adding a document when a field needs to be created from a type and a string.
static FieldType	createFieldType(SchemaField field) Utility method to create a FieldType based on the SchemaField
IndexableField	fromString(SchemaField field, String val, float boost)
Analyzer	getIndexAnalyzer() Overridden to return an analyzer consisting of a PreAnalyzedTokenizer.
Analyzer	getQueryAnalyzer() Returns the query analyzer defined via the schema, unless there is none, in which case the index-time pre-analyzer is returned.
SortField	getSortField(SchemaField field, boolean top) Returns the SortField instance that should be used to sort fields of this type.
UninvertingReader.Type	getUninversionType(SchemaField sf) 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.
ValueSource	getValueSource(SchemaField field, QParser parser) called to get the default value source (normally, from the Lucene FieldCache.)
void	init(IndexSchema schema, Map<String,String> args) subclasses should initialize themselves with the args provided and remove valid arguments.
String	toFormattedString(Field f) Utility method to convert a field to a string that is parse-able by this class.
void	write(TextResponseWriter writer, String name, IndexableField f) calls back to TextResponseWriter to write the field value

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

analyzeMultiTerm, getAutoGeneratePhraseQueries, getFieldQuery, getMultiTermAnalyzer, getRangeQuery, isExplicitMultiTermAnalyzer, marshalSortValue, setIsExplicitMultiTermAnalyzer, setMultiTermAnalyzer, supportsAnalyzers, toObject, unmarshalSortValue

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

checkSchemaField, checkSupportsDocValues, createField, createFields, getAnalyzerProperties, getClassArg, getDocValuesFormat, getIndexOptions, getNamedPropertyValues, getNonFieldPropertyArgs, getNumberType, getNumericType, getPostingsFormat, getPrefixQuery, getRewriteMethod, getSetQuery, getSimilarity, getSimilarityFactory, getSingleValueSource, getStringSort, getTypeName, hasProperty, indexedToReadable, indexedToReadable, isExplicitAnalyzer, isExplicitQueryAnalyzer, isMultiValued, isPointField, isPolyField, isTokenized, marshalBase64SortValue, marshalStringSortValue, multiValuedFieldCache, readableToIndexed, readableToIndexed, restrictProps, setArgs, setIndexAnalyzer, setIsExplicitAnalyzer, setIsExplicitQueryAnalyzer, setQueryAnalyzer, setSimilarity, storedToIndexed, storedToReadable, toExternal, toInternal, toNativeType, toObject, toString, unmarshalBase64SortValue, unmarshalStringSortValue, useDocValuesAsStored

Methods inherited from class java.lang.Object

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

Field Detail

PARSER_IMPL

public static final String PARSER_IMPL

Init argument name. Value is a fully-qualified class name of the parser that implements PreAnalyzedField.PreAnalyzedParser.

See Also:

Constant Field Values

Constructor Detail

PreAnalyzedField

public PreAnalyzedField()

Method Detail

init

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

Description copied from class: FieldType

subclasses should initialize themselves with the args provided and remove valid arguments. leftover arguments will cause an exception. Common boolean properties have already been handled.

Overrides:

init in class TextField

getIndexAnalyzer

public Analyzer getIndexAnalyzer()

Overridden to return an analyzer consisting of a PreAnalyzedTokenizer. NOTE: If an index analyzer is specified in the schema, it will be ignored.

Overrides:

getIndexAnalyzer in class FieldType

See Also:

FieldType.getQueryAnalyzer()

getQueryAnalyzer

public Analyzer getQueryAnalyzer()

Returns the query analyzer defined via the schema, unless there is none, in which case the index-time pre-analyzer is returned. Note that if the schema specifies an index-time analyzer via either <analyzer> or <analyzer type="index">, but no query-time analyzer, the query analyzer returned here will be the index-time analyzer specified in the schema rather than the pre-analyzer.

Overrides:

getQueryAnalyzer in class FieldType

See Also:

FieldType.getIndexAnalyzer()

createField

public IndexableField createField(SchemaField field,
                                  Object value,
                                  float boost)

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)

getSortField

public 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 TextField

See Also:

SchemaField.checkSortability()

getValueSource

public ValueSource getValueSource(SchemaField field,
                                  QParser parser)

Description copied from class: FieldType

called to get the default value source (normally, from the Lucene FieldCache.)

Overrides:

getValueSource in class TextField

getUninversionType

public UninvertingReader.Type getUninversionType(SchemaField sf)

Description copied from class: FieldType

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.

Overrides:

getUninversionType in class TextField

Parameters:

sf - field instance

Returns:

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

write

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

Description copied from class: FieldType

calls back to TextResponseWriter to write the field value

Overrides:

write in class TextField

Throws:

IOException

toFormattedString

public String toFormattedString(Field f)
                         throws IOException

Utility method to convert a field to a string that is parse-able by this class.

Parameters:

f - field to convert

Returns:

string that is compatible with the serialization format

Throws:

IOException - If there is a low-level I/O error.

createFieldType

public static FieldType createFieldType(SchemaField field)

Utility method to create a FieldType based on the SchemaField

fromString

public IndexableField fromString(SchemaField field,
                                 String val,
                                 float boost)
                          throws Exception

Throws:

Exception