org.apache.solr.schema

Class PreAnalyzedField

java.lang.Object

org.apache.solr.schema.FieldProperties

org.apache.solr.schema.FieldType

org.apache.solr.schema.PreAnalyzedField

public class PreAnalyzedField
extends FieldType

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

Field Summary

Fields

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

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

analyzer, 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
PreAnalyzedField()

Method Summary

Methods

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	getAnalyzer() Returns the Analyzer to be used when indexing fields of this type.
Analyzer	getQueryAnalyzer() Returns the Analyzer to be used when searching fields of this type.
SortField	getSortField(SchemaField field, boolean top) Returns the SortField instance that should be used to sort fields of this type.
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.FieldType

checkSchemaField, createField, createFields, getAnalyzerProperties, getClassArg, getDocValuesFormat, getFieldQuery, getIndexOptions, getNamedPropertyValues, getNonFieldPropertyArgs, getNumericType, getPostingsFormat, getRangeQuery, 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

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 FieldType

getAnalyzer

public Analyzer getAnalyzer()

Description copied from class: FieldType

Returns the Analyzer to be used when indexing fields of this type.

This method may be called many times, at any time.

Overrides:

getAnalyzer in class FieldType

See Also:

FieldType.getQueryAnalyzer()

getQueryAnalyzer

public Analyzer getQueryAnalyzer()

Description copied from class: FieldType

Returns the Analyzer to be used when searching fields of this type.

This method may be called many times, at any time.

Overrides:

getQueryAnalyzer in class FieldType

See Also:

FieldType.getAnalyzer()

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.

Specified by:

getSortField in class FieldType

See Also:

SchemaField.checkSortability()

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

Specified by:

write in class FieldType

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