Function

java.lang.Object
- java.lang.Enum<Function>
- - org.basex.query.func.Function

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<Function>
```
public enum Function
extends java.lang.Enum<Function>
```
Definitions of all built-in XQuery functions. Namespace mappings for function prefixes and URIs are specified in the static code in the NSGlobal class.

Author:

BaseX Team 2005-12, BSD License, Christian Gruen

Enum Constant Summary

Enum Constants
Enum Constant and Description
`_CRYPTO_DECRYPT` Decrypt message.
`_CRYPTO_ENCRYPT` Encrypt message.
`_CRYPTO_GENERATE_SIGNATURE` Generate signature.
`_CRYPTO_HMAC` Create message authentication code (HMAC).
`_CRYPTO_VALIDATE_SIGNATURE` Validate signature.
`_DB_ADD` Database function: add document(s) to a database.
`_DB_ATTRIBUTE` Database function: searches the attribute index.
`_DB_CONTENT_TYPE` Database function: returns the content type of a database file.
`_DB_DELETE` Database function: delete document(s) from a database.
`_DB_EVENT` Database function: sends result to connected clients.
`_DB_EXISTS` Database function: checks if the specified database or resource exists.
`_DB_FULLTEXT` Database function: searches the full-text index.
`_DB_INFO` Database function: returns database or index information.
`_DB_IS_RAW` Database function: checks if the specified resource is a raw file.
`_DB_IS_XML` Database function: checks if the specified resource is an xml document.
`_DB_LIST` Database function: lists all databases or documents in a database.
`_DB_LIST_DETAILS` Database function: lists databases details.
`_DB_NODE_ID` Database function: returns the node ids of database nodes.
`_DB_NODE_PRE` Database function: returns the pre values of database nodes.
`_DB_OPEN` Database function: opens a database.
`_DB_OPEN_ID` Database function: opens a specific database node.
`_DB_OPEN_PRE` Database function: opens a specific database node.
`_DB_OPTIMIZE` Database function: optimize database structures.
`_DB_RENAME` Database function: rename document(s).
`_DB_REPLACE` Database function: replace document(s).
`_DB_RETRIEVE` Database function: retrieves binary data.
`_DB_STORE` Database function: stores binary data.
`_DB_SYSTEM` Database function: lists system information.
`_DB_TEXT` Database function: searches the text index.
`_FILE_APPEND` XQuery function
`_FILE_APPEND_BINARY` XQuery function
`_FILE_BASE_NAME` XQuery function
`_FILE_COPY` XQuery function
`_FILE_CREATE_DIRECTORY` XQuery function
`_FILE_DELETE` XQuery function
`_FILE_DIR_NAME` XQuery function
`_FILE_EXISTS` XQuery function
`_FILE_IS_DIRECTORY` XQuery function
`_FILE_IS_FILE` XQuery function
`_FILE_LAST_MODIFIED` XQuery function
`_FILE_LIST` XQuery function
`_FILE_MOVE` XQuery function
`_FILE_PATH_TO_NATIVE` XQuery function
`_FILE_PATH_TO_URI` XQuery function
`_FILE_READ_BINARY` XQuery function
`_FILE_READ_TEXT` XQuery function
`_FILE_READ_TEXT_LINES` XQuery function
`_FILE_RESOLVE_PATH` XQuery function
`_FILE_SIZE` XQuery function
`_FILE_WRITE` XQuery function
`_FILE_WRITE_BINARY` XQuery function
`_FT_COUNT` Full-text function: counts the hits of a full-text request.
`_FT_EXTRACT` Full-text function: extracts full-text results.
`_FT_MARK` Full-text function: marks the hits of a full-text request.
`_FT_SCORE` Full-text function: returns the full-text score.
`_FT_SEARCH` Full-text function: searches the full-text index.
`_FT_TOKENIZE` Full-text function: tokenizes the specified string.
`_FT_TOKENS` Full-text function: returns indexed tokens.
`_HOF_CONST` XQuery function.
`_HOF_FOLD_LEFT1` XQuery function.
`_HOF_ID` XQuery function.
`_HOF_SORT_WITH` XQuery function.
`_HOF_TOP_K_BY` XQuery Function.
`_HOF_TOP_K_WITH` XQuery function.
`_HOF_UNTIL` XQuery function.
`_HTTP_SEND_REQUEST` XQuery function
`_INDEX_ATTRIBUTE_NAMES` Index function: returns attribute names.
`_INDEX_ATTRIBUTES` Index function: returns attribute values.
`_INDEX_ELEMENT_NAMES` Index function: returns element names.
`_INDEX_FACETS` Index function: returns index facet information.
`_INDEX_TEXTS` Index function: returns texts.
`_JSON_PARSE` JSON function: convert JSON to XML.
`_JSON_PARSE_ML` JSON function: convert JSON to XML.
`_JSON_SERIALIZE` JSON function: convert XML to JSON.
`_JSON_SERIALIZE_ML` JSON function: convert XML to JsonML.
`_MAP_COLLATION` XQuery Function.
`_MAP_CONTAINS` XQuery Function.
`_MAP_ENTRY` XQuery Function.
`_MAP_GET` XQuery Function.
`_MAP_KEYS` XQuery Function.
`_MAP_NEW` XQuery Function.
`_MAP_REMOVE` XQuery Function.
`_MAP_SIZE` XQuery Function.
`_MATH_ACOS` XQuery math function.
`_MATH_ASIN` XQuery math function.
`_MATH_ATAN` XQuery math function.
`_MATH_ATAN2` XQuery math function.
`_MATH_COS` XQuery math function.
`_MATH_COSH` XQuery math function (project specific).
`_MATH_E` XQuery math function (project specific).
`_MATH_EXP` XQuery math function.
`_MATH_EXP10` XQuery math function.
`_MATH_LOG` XQuery math function.
`_MATH_LOG10` XQuery math function.
`_MATH_PI` XQuery math function.
`_MATH_POW` XQuery math function.
`_MATH_RANDOM` XQuery math function (project specific).
`_MATH_SIN` XQuery math function.
`_MATH_SINH` XQuery math function (project specific).
`_MATH_SQRT` XQuery math function.
`_MATH_TAN` XQuery math function.
`_MATH_TANH` XQuery math function (project specific).
`_REPO_DELETE` XQuery function.
`_REPO_INSTALL` XQuery function.
`_REPO_LIST` XQuery function.
`_SQL_CLOSE` XQuery function
`_SQL_COMMIT` XQuery function
`_SQL_CONNECT` XQuery function
`_SQL_EXECUTE` XQuery function
`_SQL_INIT` XQuery function
`_SQL_PREPARE` XQuery function
`_SQL_ROLLBACK` XQuery function
`_UTIL_CRC32` Utility function: calculates the CRC32 hash of the given string.
`_UTIL_DEEP_EQUAL` Utility function: compares items in depth and offers some more options.
`_UTIL_EVAL` Utility function: evaluates the specified query.
`_UTIL_FORMAT` Utility function: formats a string using the printf syntax.
`_UTIL_INTEGER_FROM_BASE` Utility function: decodes a number from a given base.
`_UTIL_INTEGER_TO_BASE` Utility function: converts a number to a given base.
`_UTIL_MD5` Utility function: calculates the MD5 hash of the given string.
`_UTIL_MEM` Utility function: dumps the memory consumption.
`_UTIL_PATH` Utility function: returns the path to the query file.
`_UTIL_RUN` Utility function: evaluates the specified query file.
`_UTIL_SHA1` Utility function: calculates the SHA1 hash of the given string.
`_UTIL_TIME` Utility function: dumps the execution time of an expression.
`_UTIL_TO_BYTES` Utility function: gets the bytes from the given data data.
`_UTIL_TO_STRING` Utility function: converts the specified bytes to a string.
`_UTIL_TRANSFORM` XSLT function: performs an XSLT transformation.
`_UTIL_TYPE` Utility function: passes type information to `fn:trace()`.
`_UTIL_UUID` Utility function: returns a random unique id.
`_ZIP_BINARY_ENTRY` XQuery function
`_ZIP_ENTRIES` XQuery function
`_ZIP_HTML_ENTRY` XQuery function
`_ZIP_TEXT_ENTRY` XQuery function
`_ZIP_UPDATE_ENTRIES` XQuery function
`_ZIP_XML_ENTRY` XQuery function
`_ZIP_ZIP_FILE` XQuery function
`ABS` XQuery function.
`ADJUST_DATE_TO_TIMEZONE` XQuery function.
`ADJUST_DATETIME_TO_TIMEZONE` XQuery function.
`ADJUST_TIME_TO_TIMEZONE` XQuery function.
`ANALYZE_STRING` XQuery function.
`AVAILABLE_ENVIRONMENT_VARIABLES` XQuery function.
`AVG` XQuery function.
`BASE_URI` XQuery function.
`BOOLEAN` XQuery function.
`CEILING` XQuery function.
`CODEPOINT_EQUAL` XQuery function.
`CODEPOINTS_TO_STRING` XQuery function.
`COLLECTION` XQuery function.
`COMPARE` XQuery function.
`CONCAT` XQuery function.
`CONTAINS` XQuery function.
`COUNT` XQuery function.
`CURRENT_DATE` XQuery function.
`CURRENT_DATETIME` XQuery function.
`CURRENT_TIME` XQuery function.
`DATA` XQuery function.
`DATETIME` XQuery function.
`DAY_FROM_DATE` XQuery function.
`DAY_FROM_DATETIME` XQuery function.
`DAYS_FROM_DURATION` XQuery function.
`DEEP_EQUAL` XQuery function.
`DEFAULT_COLLATION` XQuery function.
`DISTINCT_VALUES` XQuery function.
`DOC` XQuery function.
`DOC_AVAILABLE` XQuery function.
`DOCUMENT_URI` XQuery function.
`ELEMENT_WITH_ID` XQuery function.
`EMPTY` XQuery function.
`ENCODE_FOR_URI` XQuery function.
`ENDS_WITH` XQuery function.
`ENVIRONMENT_VARIABLE` XQuery function.
`ERROR` XQuery function.
`ESCAPE_HTML_URI` XQuery function.
`EXACTLY_ONE` XQuery function.
`EXISTS` XQuery function.
`FALSE` XQuery function.
`FILTER` XQuery function.
`FLOOR` XQuery function.
`FOLD_LEFT` XQuery function.
`FOLD_RIGHT` XQuery function.
`FORMAT_DATE` XQuery function.
`FORMAT_DATETIME` XQuery function.
`FORMAT_INTEGER` XQuery function.
`FORMAT_NUMBER` XQuery function.
`FORMAT_TIME` XQuery function.
`FUNCTION_ARITY` XQuery function.
`FUNCTION_LOOKUP` XQuery function.
`FUNCTION_NAME` XQuery function.
`GENERATE_ID` XQuery function.
`HAS_CHILDREN` XQuery function.
`HEAD` XQuery function.
`HOURS_FROM_DATETIME` XQuery function.
`HOURS_FROM_DURATION` XQuery function.
`HOURS_FROM_TIME` XQuery function.
`ID` XQuery function.
`IDREF` XQuery function.
`IMPLICIT_TIMEZONE` XQuery function.
`IN_SCOPE_PREFIXES` XQuery function.
`INDEX_OF` XQuery function.
`INNERMOST` XQuery function.
`INSERT_BEFORE` XQuery function.
`IRI_TO_URI` XQuery function.
`LANG` XQuery function.
`LAST` XQuery function.
`LOCAL_NAME` XQuery function.
`LOCAL_NAME_FROM_QNAME` XQuery function.
`LOWER_CASE` XQuery function.
`MAP` XQuery function.
`MAP_PAIRS` XQuery function.
`MATCHES` XQuery function.
`MAX` XQuery function.
`MIN` XQuery function.
`MINUTES_FROM_DATETIME` XQuery function.
`MINUTES_FROM_DURATION` XQuery function.
`MINUTES_FROM_TIME` XQuery function.
`MONTH_FROM_DATE` XQuery function.
`MONTH_FROM_DATETIME` XQuery function.
`MONTHS_FROM_DURATION` XQuery function.
`NAME` XQuery function.
`NAMESPACE_URI` XQuery function.
`NAMESPACE_URI_FOR_PREFIX` XQuery function.
`NAMESPACE_URI_FROM_QNAME` XQuery function.
`NILLED` XQuery function.
`NODE_NAME` XQuery function.
`NORMALIZE_SPACE` XQuery function.
`NORMALIZE_UNICODE` XQuery function.
`NOT` XQuery function.
`NUMBER` XQuery function.
`ONE_OR_MORE` XQuery function.
`OUTERMOST` XQuery function.
`PARSE_XML` XQuery function.
`PARTIAL_APPLY` XQuery function.
`PATH` XQuery function.
`POSITION` XQuery function.
`PREFIX_FROM_QNAME` XQuery function.
`PUT` XQuery function.
`QNAME` XQuery function.
`REMOVE` XQuery function.
`REPLACE` XQuery function.
`RESOLVE_QNAME` XQuery function.
`RESOLVE_URI` XQuery function.
`REVERSE` XQuery function.
`ROOT` XQuery function.
`ROUND` XQuery function.
`ROUND_HALF_TO_EVEN` XQuery function.
`SECONDS_FROM_DATETIME` XQuery function.
`SECONDS_FROM_DURATION` XQuery function.
`SECONDS_FROM_TIME` XQuery function.
`SERIALIZE` XQuery function.
`STARTS_WITH` XQuery function.
`STATIC_BASE_URI` XQuery function.
`STRING` XQuery function.
`STRING_JOIN` XQuery function.
`STRING_LENGTH` XQuery function.
`STRING_TO_CODEPOINTS` XQuery function.
`SUBSEQUENCE` XQuery function.
`SUBSTRING` XQuery function.
`SUBSTRING_AFTER` XQuery function.
`SUBSTRING_BEFORE` XQuery function.
`SUM` XQuery function.
`TAIL` XQuery function.
`TIMEZONE_FROM_DATE` XQuery function.
`TIMEZONE_FROM_DATETIME` XQuery function.
`TIMEZONE_FROM_TIME` XQuery function.
`TOKENIZE` XQuery function.
`TRACE` XQuery function.
`TRANSLATE` XQuery function.
`TRUE` XQuery function.
`UNORDERED` XQuery function.
`UNPARSED_TEXT` XQuery function.
`UNPARSED_TEXT_AVAILABLE` XQuery function.
`UNPARSED_TEXT_LINES` XQuery function.
`UPPER_CASE` XQuery function.
`URI_COLLECTION` XQuery function.
`YEAR_FROM_DATE` XQuery function.
`YEAR_FROM_DATETIME` XQuery function.
`YEARS_FROM_DURATION` XQuery function.
`ZERO_OR_ONE` XQuery function.

Field Summary

Fields
Modifier and Type Field and Description

SeqType[] args
Argument types.

int max
Maximum number of arguments.

int min
Minimum number of arguments.

Fields
Modifier and Type	Field and Description
`SeqType[]`	`args` Argument types.
`int`	`max` Maximum number of arguments.
`int`	`min` Minimum number of arguments.

Method Summary

Methods
Modifier and Type	Method and Description
`java.lang.String`	`args(java.lang.Object... arg)` Returns a string representation of the function with the specified arguments.
`StandardFunc`	`get(InputInfo ii, Expr... arg)` Creates a new instance of the function.
`java.lang.String`	`toString()`
`static Function`	`valueOf(java.lang.String name)` Returns the enum constant of this type with the specified name.
`static Function[]`	`values()` Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

POSITION
```
public static final Function POSITION
```
XQuery function.

LAST
```
public static final Function LAST
```
XQuery function.

STRING
```
public static final Function STRING
```
XQuery function.

NUMBER
```
public static final Function NUMBER
```
XQuery function.

STRING_LENGTH

public static final Function STRING_LENGTH

XQuery function.

NORMALIZE_SPACE

public static final Function NORMALIZE_SPACE

XQuery function.

NAMESPACE_URI_FROM_QNAME

public static final Function NAMESPACE_URI_FROM_QNAME

XQuery function.

AVG
```
public static final Function AVG
```
XQuery function.

COUNT
```
public static final Function COUNT
```
XQuery function.

MAX
```
public static final Function MAX
```
XQuery function.

MIN
```
public static final Function MIN
```
XQuery function.

SUM
```
public static final Function SUM
```
XQuery function.

CURRENT_DATE

public static final Function CURRENT_DATE

XQuery function.

CURRENT_DATETIME

public static final Function CURRENT_DATETIME

XQuery function.

CURRENT_TIME

public static final Function CURRENT_TIME

XQuery function.

IMPLICIT_TIMEZONE

public static final Function IMPLICIT_TIMEZONE

XQuery function.

DEFAULT_COLLATION

public static final Function DEFAULT_COLLATION

XQuery function.

STATIC_BASE_URI

public static final Function STATIC_BASE_URI

XQuery function.

DAY_FROM_DATE

public static final Function DAY_FROM_DATE

XQuery function.

DAY_FROM_DATETIME

public static final Function DAY_FROM_DATETIME

XQuery function.

DAYS_FROM_DURATION

public static final Function DAYS_FROM_DURATION

XQuery function.

HOURS_FROM_DATETIME

public static final Function HOURS_FROM_DATETIME

XQuery function.

HOURS_FROM_DURATION

public static final Function HOURS_FROM_DURATION

XQuery function.

HOURS_FROM_TIME

public static final Function HOURS_FROM_TIME

XQuery function.

MINUTES_FROM_DATETIME

public static final Function MINUTES_FROM_DATETIME

XQuery function.

MINUTES_FROM_DURATION

public static final Function MINUTES_FROM_DURATION

XQuery function.

MINUTES_FROM_TIME

public static final Function MINUTES_FROM_TIME

XQuery function.

MONTH_FROM_DATE

public static final Function MONTH_FROM_DATE

XQuery function.

MONTH_FROM_DATETIME

public static final Function MONTH_FROM_DATETIME

XQuery function.

MONTHS_FROM_DURATION

public static final Function MONTHS_FROM_DURATION

XQuery function.

SECONDS_FROM_DATETIME

public static final Function SECONDS_FROM_DATETIME

XQuery function.

SECONDS_FROM_DURATION

public static final Function SECONDS_FROM_DURATION

XQuery function.

SECONDS_FROM_TIME

public static final Function SECONDS_FROM_TIME

XQuery function.

TIMEZONE_FROM_DATE

public static final Function TIMEZONE_FROM_DATE

XQuery function.

TIMEZONE_FROM_DATETIME

public static final Function TIMEZONE_FROM_DATETIME

XQuery function.

TIMEZONE_FROM_TIME

public static final Function TIMEZONE_FROM_TIME

XQuery function.

YEAR_FROM_DATE

public static final Function YEAR_FROM_DATE

XQuery function.

YEAR_FROM_DATETIME

public static final Function YEAR_FROM_DATETIME

XQuery function.

YEARS_FROM_DURATION

public static final Function YEARS_FROM_DURATION

XQuery function.

ADJUST_DATE_TO_TIMEZONE

public static final Function ADJUST_DATE_TO_TIMEZONE

XQuery function.

ADJUST_DATETIME_TO_TIMEZONE

public static final Function ADJUST_DATETIME_TO_TIMEZONE

XQuery function.

ADJUST_TIME_TO_TIMEZONE

public static final Function ADJUST_TIME_TO_TIMEZONE

XQuery function.

DATETIME
```
public static final Function DATETIME
```
XQuery function.

FORMAT_INTEGER

public static final Function FORMAT_INTEGER

XQuery function.

FORMAT_NUMBER

public static final Function FORMAT_NUMBER

XQuery function.

FORMAT_DATETIME

public static final Function FORMAT_DATETIME

XQuery function.

FORMAT_DATE

public static final Function FORMAT_DATE

XQuery function.

FORMAT_TIME

public static final Function FORMAT_TIME

XQuery function.

FILTER
```
public static final Function FILTER
```
XQuery function.

FUNCTION_NAME

public static final Function FUNCTION_NAME

XQuery function.

FUNCTION_ARITY

public static final Function FUNCTION_ARITY

XQuery function.

FUNCTION_LOOKUP

public static final Function FUNCTION_LOOKUP

XQuery function.

MAP
```
public static final Function MAP
```
XQuery function.

MAP_PAIRS
```
public static final Function MAP_PAIRS
```
XQuery function.

FOLD_LEFT
```
public static final Function FOLD_LEFT
```
XQuery function.

FOLD_RIGHT

public static final Function FOLD_RIGHT

XQuery function.

PARTIAL_APPLY

public static final Function PARTIAL_APPLY

XQuery function.

DATA
```
public static final Function DATA
```
XQuery function.

COLLECTION

public static final Function COLLECTION

XQuery function.

DOC
```
public static final Function DOC
```
XQuery function.

DOC_AVAILABLE

public static final Function DOC_AVAILABLE

XQuery function.

PUT
```
public static final Function PUT
```
XQuery function.

UNPARSED_TEXT

public static final Function UNPARSED_TEXT

XQuery function.

UNPARSED_TEXT_LINES

public static final Function UNPARSED_TEXT_LINES

XQuery function.

UNPARSED_TEXT_AVAILABLE

public static final Function UNPARSED_TEXT_AVAILABLE

XQuery function.

PARSE_XML
```
public static final Function PARSE_XML
```
XQuery function.

URI_COLLECTION

public static final Function URI_COLLECTION

XQuery function.

SERIALIZE
```
public static final Function SERIALIZE
```
XQuery function.

ID
```
public static final Function ID
```
XQuery function.

IDREF
```
public static final Function IDREF
```
XQuery function.

LANG
```
public static final Function LANG
```
XQuery function.

ELEMENT_WITH_ID

public static final Function ELEMENT_WITH_ID

XQuery function.

ERROR
```
public static final Function ERROR
```
XQuery function.

TRACE
```
public static final Function TRACE
```
XQuery function.

ENVIRONMENT_VARIABLE

public static final Function ENVIRONMENT_VARIABLE

XQuery function.

AVAILABLE_ENVIRONMENT_VARIABLES

public static final Function AVAILABLE_ENVIRONMENT_VARIABLES

XQuery function.

DOCUMENT_URI

public static final Function DOCUMENT_URI

XQuery function.

NILLED
```
public static final Function NILLED
```
XQuery function.

NODE_NAME
```
public static final Function NODE_NAME
```
XQuery function.

LOCAL_NAME

public static final Function LOCAL_NAME

XQuery function.

NAME
```
public static final Function NAME
```
XQuery function.

NAMESPACE_URI

public static final Function NAMESPACE_URI

XQuery function.

ROOT
```
public static final Function ROOT
```
XQuery function.

BASE_URI
```
public static final Function BASE_URI
```
XQuery function.

GENERATE_ID

public static final Function GENERATE_ID

XQuery function.

HAS_CHILDREN

public static final Function HAS_CHILDREN

XQuery function.

PATH
```
public static final Function PATH
```
XQuery function.

ABS
```
public static final Function ABS
```
XQuery function.

CEILING
```
public static final Function CEILING
```
XQuery function.

FLOOR
```
public static final Function FLOOR
```
XQuery function.

ROUND
```
public static final Function ROUND
```
XQuery function.

ROUND_HALF_TO_EVEN

public static final Function ROUND_HALF_TO_EVEN

XQuery function.

MATCHES
```
public static final Function MATCHES
```
XQuery function.

REPLACE
```
public static final Function REPLACE
```
XQuery function.

TOKENIZE
```
public static final Function TOKENIZE
```
XQuery function.

ANALYZE_STRING

public static final Function ANALYZE_STRING

XQuery function.

IN_SCOPE_PREFIXES

public static final Function IN_SCOPE_PREFIXES

XQuery function.

LOCAL_NAME_FROM_QNAME

public static final Function LOCAL_NAME_FROM_QNAME

XQuery function.

NAMESPACE_URI_FOR_PREFIX

public static final Function NAMESPACE_URI_FOR_PREFIX

XQuery function.

QNAME
```
public static final Function QNAME
```
XQuery function.

PREFIX_FROM_QNAME

public static final Function PREFIX_FROM_QNAME

XQuery function.

RESOLVE_QNAME

public static final Function RESOLVE_QNAME

XQuery function.

RESOLVE_URI

public static final Function RESOLVE_URI

XQuery function.

DISTINCT_VALUES

public static final Function DISTINCT_VALUES

XQuery function.

INDEX_OF
```
public static final Function INDEX_OF
```
XQuery function.

INSERT_BEFORE

public static final Function INSERT_BEFORE

XQuery function.

REMOVE
```
public static final Function REMOVE
```
XQuery function.

REVERSE
```
public static final Function REVERSE
```
XQuery function.

SUBSEQUENCE

public static final Function SUBSEQUENCE

XQuery function.

HEAD
```
public static final Function HEAD
```
XQuery function.

TAIL
```
public static final Function TAIL
```
XQuery function.

OUTERMOST
```
public static final Function OUTERMOST
```
XQuery function.

INNERMOST
```
public static final Function INNERMOST
```
XQuery function.

FALSE
```
public static final Function FALSE
```
XQuery function.

TRUE
```
public static final Function TRUE
```
XQuery function.

BOOLEAN
```
public static final Function BOOLEAN
```
XQuery function.

NOT
```
public static final Function NOT
```
XQuery function.

EMPTY
```
public static final Function EMPTY
```
XQuery function.

EXISTS
```
public static final Function EXISTS
```
XQuery function.

UNORDERED
```
public static final Function UNORDERED
```
XQuery function.

ZERO_OR_ONE

public static final Function ZERO_OR_ONE

XQuery function.

EXACTLY_ONE

public static final Function EXACTLY_ONE

XQuery function.

ONE_OR_MORE

public static final Function ONE_OR_MORE

XQuery function.

DEEP_EQUAL

public static final Function DEEP_EQUAL

XQuery function.

CODEPOINT_EQUAL

public static final Function CODEPOINT_EQUAL

XQuery function.

CODEPOINTS_TO_STRING

public static final Function CODEPOINTS_TO_STRING

XQuery function.

COMPARE
```
public static final Function COMPARE
```
XQuery function.

CONCAT
```
public static final Function CONCAT
```
XQuery function.

CONTAINS
```
public static final Function CONTAINS
```
XQuery function.

ENCODE_FOR_URI

public static final Function ENCODE_FOR_URI

XQuery function.

ENDS_WITH
```
public static final Function ENDS_WITH
```
XQuery function.

ESCAPE_HTML_URI

public static final Function ESCAPE_HTML_URI

XQuery function.

IRI_TO_URI

public static final Function IRI_TO_URI

XQuery function.

LOWER_CASE

public static final Function LOWER_CASE

XQuery function.

NORMALIZE_UNICODE

public static final Function NORMALIZE_UNICODE

XQuery function.

STARTS_WITH

public static final Function STARTS_WITH

XQuery function.

STRING_JOIN

public static final Function STRING_JOIN

XQuery function.

STRING_TO_CODEPOINTS

public static final Function STRING_TO_CODEPOINTS

XQuery function.

SUBSTRING
```
public static final Function SUBSTRING
```
XQuery function.

SUBSTRING_AFTER

public static final Function SUBSTRING_AFTER

XQuery function.

SUBSTRING_BEFORE

public static final Function SUBSTRING_BEFORE

XQuery function.

TRANSLATE
```
public static final Function TRANSLATE
```
XQuery function.

UPPER_CASE

public static final Function UPPER_CASE

XQuery function.

_MAP_NEW
```
public static final Function _MAP_NEW
```
XQuery Function.

_MAP_ENTRY

public static final Function _MAP_ENTRY

XQuery Function.

_MAP_GET
```
public static final Function _MAP_GET
```
XQuery Function.

_MAP_CONTAINS

public static final Function _MAP_CONTAINS

XQuery Function.

_MAP_REMOVE

public static final Function _MAP_REMOVE

XQuery Function.

_MAP_SIZE
```
public static final Function _MAP_SIZE
```
XQuery Function.

_MAP_KEYS
```
public static final Function _MAP_KEYS
```
XQuery Function.

_MAP_COLLATION

public static final Function _MAP_COLLATION

XQuery Function.

_MATH_PI
```
public static final Function _MATH_PI
```
XQuery math function.

_MATH_SQRT

public static final Function _MATH_SQRT

XQuery math function.

_MATH_SIN
```
public static final Function _MATH_SIN
```
XQuery math function.

_MATH_COS
```
public static final Function _MATH_COS
```
XQuery math function.

_MATH_TAN
```
public static final Function _MATH_TAN
```
XQuery math function.

_MATH_ASIN

public static final Function _MATH_ASIN

XQuery math function.

_MATH_ACOS

public static final Function _MATH_ACOS

XQuery math function.

_MATH_ATAN

public static final Function _MATH_ATAN

XQuery math function.

_MATH_ATAN2

public static final Function _MATH_ATAN2

XQuery math function.

_MATH_POW
```
public static final Function _MATH_POW
```
XQuery math function.

_MATH_EXP
```
public static final Function _MATH_EXP
```
XQuery math function.

_MATH_EXP10

public static final Function _MATH_EXP10

XQuery math function.

_MATH_LOG
```
public static final Function _MATH_LOG
```
XQuery math function.

_MATH_LOG10

public static final Function _MATH_LOG10

XQuery math function.

_MATH_RANDOM
```
public static final Function _MATH_RANDOM
```
XQuery math function (project specific).

_MATH_E
```
public static final Function _MATH_E
```
XQuery math function (project specific).

_MATH_SINH
```
public static final Function _MATH_SINH
```
XQuery math function (project specific).

_MATH_COSH
```
public static final Function _MATH_COSH
```
XQuery math function (project specific).

_MATH_TANH
```
public static final Function _MATH_TANH
```
XQuery math function (project specific).

_DB_OPEN
```
public static final Function _DB_OPEN
```
Database function: opens a database.

_DB_OPEN_PRE
```
public static final Function _DB_OPEN_PRE
```
Database function: opens a specific database node.

_DB_OPEN_ID
```
public static final Function _DB_OPEN_ID
```
Database function: opens a specific database node.

_DB_TEXT
```
public static final Function _DB_TEXT
```
Database function: searches the text index.

_DB_ATTRIBUTE
```
public static final Function _DB_ATTRIBUTE
```
Database function: searches the attribute index.

_DB_FULLTEXT
```
public static final Function _DB_FULLTEXT
```
Database function: searches the full-text index.

_DB_LIST
```
public static final Function _DB_LIST
```
Database function: lists all databases or documents in a database.

_DB_LIST_DETAILS
```
public static final Function _DB_LIST_DETAILS
```
Database function: lists databases details.

_DB_SYSTEM
```
public static final Function _DB_SYSTEM
```
Database function: lists system information.

_DB_INFO
```
public static final Function _DB_INFO
```
Database function: returns database or index information.

_DB_NODE_ID
```
public static final Function _DB_NODE_ID
```
Database function: returns the node ids of database nodes.

_DB_NODE_PRE
```
public static final Function _DB_NODE_PRE
```
Database function: returns the pre values of database nodes.

_DB_EVENT
```
public static final Function _DB_EVENT
```
Database function: sends result to connected clients.

_DB_ADD
```
public static final Function _DB_ADD
```
Database function: add document(s) to a database.

_DB_DELETE
```
public static final Function _DB_DELETE
```
Database function: delete document(s) from a database.

_DB_RENAME
```
public static final Function _DB_RENAME
```
Database function: rename document(s).

_DB_REPLACE
```
public static final Function _DB_REPLACE
```
Database function: replace document(s).

_DB_OPTIMIZE
```
public static final Function _DB_OPTIMIZE
```
Database function: optimize database structures.

_DB_RETRIEVE
```
public static final Function _DB_RETRIEVE
```
Database function: retrieves binary data.

_DB_STORE
```
public static final Function _DB_STORE
```
Database function: stores binary data.

_DB_IS_XML
```
public static final Function _DB_IS_XML
```
Database function: checks if the specified resource is an xml document.

_DB_IS_RAW
```
public static final Function _DB_IS_RAW
```
Database function: checks if the specified resource is a raw file.

_DB_EXISTS
```
public static final Function _DB_EXISTS
```
Database function: checks if the specified database or resource exists.

_DB_CONTENT_TYPE
```
public static final Function _DB_CONTENT_TYPE
```
Database function: returns the content type of a database file.

_INDEX_FACETS
```
public static final Function _INDEX_FACETS
```
Index function: returns index facet information.

_INDEX_TEXTS

public static final Function _INDEX_TEXTS

Index function: returns texts.

_INDEX_ATTRIBUTES
```
public static final Function _INDEX_ATTRIBUTES
```
Index function: returns attribute values.

_INDEX_ELEMENT_NAMES
```
public static final Function _INDEX_ELEMENT_NAMES
```
Index function: returns element names.

_INDEX_ATTRIBUTE_NAMES
```
public static final Function _INDEX_ATTRIBUTE_NAMES
```
Index function: returns attribute names.

_FILE_EXISTS

public static final Function _FILE_EXISTS

XQuery function

_FILE_IS_DIRECTORY

public static final Function _FILE_IS_DIRECTORY

XQuery function

_FILE_IS_FILE

public static final Function _FILE_IS_FILE

XQuery function

_FILE_LAST_MODIFIED

public static final Function _FILE_LAST_MODIFIED

XQuery function

_FILE_SIZE

public static final Function _FILE_SIZE

XQuery function

_FILE_BASE_NAME

public static final Function _FILE_BASE_NAME

XQuery function

_FILE_DIR_NAME

public static final Function _FILE_DIR_NAME

XQuery function

_FILE_PATH_TO_NATIVE

public static final Function _FILE_PATH_TO_NATIVE

XQuery function

_FILE_PATH_TO_URI

public static final Function _FILE_PATH_TO_URI

XQuery function

_FILE_RESOLVE_PATH

public static final Function _FILE_RESOLVE_PATH

XQuery function

_FILE_LIST

public static final Function _FILE_LIST

XQuery function

_FILE_CREATE_DIRECTORY

public static final Function _FILE_CREATE_DIRECTORY

XQuery function

_FILE_DELETE

public static final Function _FILE_DELETE

XQuery function

_FILE_READ_TEXT

public static final Function _FILE_READ_TEXT

XQuery function

_FILE_READ_TEXT_LINES

public static final Function _FILE_READ_TEXT_LINES

XQuery function

_FILE_READ_BINARY

public static final Function _FILE_READ_BINARY

XQuery function

_FILE_WRITE

public static final Function _FILE_WRITE

XQuery function

_FILE_WRITE_BINARY

public static final Function _FILE_WRITE_BINARY

XQuery function

_FILE_APPEND

public static final Function _FILE_APPEND

XQuery function

_FILE_APPEND_BINARY

public static final Function _FILE_APPEND_BINARY

XQuery function

_FILE_COPY

public static final Function _FILE_COPY

XQuery function

_FILE_MOVE

public static final Function _FILE_MOVE

XQuery function

_SQL_INIT
```
public static final Function _SQL_INIT
```
XQuery function

_SQL_CONNECT

public static final Function _SQL_CONNECT

XQuery function

_SQL_PREPARE

public static final Function _SQL_PREPARE

XQuery function

_SQL_EXECUTE

public static final Function _SQL_EXECUTE

XQuery function

_SQL_CLOSE

public static final Function _SQL_CLOSE

XQuery function

_SQL_COMMIT

public static final Function _SQL_COMMIT

XQuery function

_SQL_ROLLBACK

public static final Function _SQL_ROLLBACK

XQuery function

_REPO_INSTALL

public static final Function _REPO_INSTALL

XQuery function.

_REPO_DELETE

public static final Function _REPO_DELETE

XQuery function.

_REPO_LIST

public static final Function _REPO_LIST

XQuery function.

_FT_SEARCH
```
public static final Function _FT_SEARCH
```
Full-text function: searches the full-text index.

_FT_COUNT
```
public static final Function _FT_COUNT
```
Full-text function: counts the hits of a full-text request.

_FT_MARK
```
public static final Function _FT_MARK
```
Full-text function: marks the hits of a full-text request.

_FT_EXTRACT
```
public static final Function _FT_EXTRACT
```
Full-text function: extracts full-text results.

_FT_SCORE
```
public static final Function _FT_SCORE
```
Full-text function: returns the full-text score.

_FT_TOKENS
```
public static final Function _FT_TOKENS
```
Full-text function: returns indexed tokens.

_FT_TOKENIZE
```
public static final Function _FT_TOKENIZE
```
Full-text function: tokenizes the specified string.

_HOF_SORT_WITH

public static final Function _HOF_SORT_WITH

XQuery function.

_HOF_ID
```
public static final Function _HOF_ID
```
XQuery function.

_HOF_CONST

public static final Function _HOF_CONST

XQuery function.

_HOF_UNTIL

public static final Function _HOF_UNTIL

XQuery function.

_HOF_FOLD_LEFT1

public static final Function _HOF_FOLD_LEFT1

XQuery function.

_HOF_TOP_K_BY

public static final Function _HOF_TOP_K_BY

XQuery Function.

_HOF_TOP_K_WITH

public static final Function _HOF_TOP_K_WITH

XQuery function.

_CRYPTO_HMAC
```
public static final Function _CRYPTO_HMAC
```
Create message authentication code (HMAC).

_CRYPTO_ENCRYPT

public static final Function _CRYPTO_ENCRYPT

Encrypt message.

_CRYPTO_DECRYPT

public static final Function _CRYPTO_DECRYPT

Decrypt message.

_CRYPTO_GENERATE_SIGNATURE

public static final Function _CRYPTO_GENERATE_SIGNATURE

Generate signature.

_CRYPTO_VALIDATE_SIGNATURE

public static final Function _CRYPTO_VALIDATE_SIGNATURE

Validate signature.

_HTTP_SEND_REQUEST

public static final Function _HTTP_SEND_REQUEST

XQuery function

_JSON_PARSE
```
public static final Function _JSON_PARSE
```
JSON function: convert JSON to XML.

_JSON_PARSE_ML
```
public static final Function _JSON_PARSE_ML
```
JSON function: convert JSON to XML.

_JSON_SERIALIZE
```
public static final Function _JSON_SERIALIZE
```
JSON function: convert XML to JSON.

_JSON_SERIALIZE_ML
```
public static final Function _JSON_SERIALIZE_ML
```
JSON function: convert XML to JsonML.

_UTIL_EVAL
```
public static final Function _UTIL_EVAL
```
Utility function: evaluates the specified query.

_UTIL_RUN
```
public static final Function _UTIL_RUN
```
Utility function: evaluates the specified query file.

_UTIL_FORMAT
```
public static final Function _UTIL_FORMAT
```
Utility function: formats a string using the printf syntax.

_UTIL_MEM
```
public static final Function _UTIL_MEM
```
Utility function: dumps the memory consumption.

_UTIL_TIME
```
public static final Function _UTIL_TIME
```
Utility function: dumps the execution time of an expression.

_UTIL_INTEGER_TO_BASE
```
public static final Function _UTIL_INTEGER_TO_BASE
```
Utility function: converts a number to a given base.

_UTIL_INTEGER_FROM_BASE
```
public static final Function _UTIL_INTEGER_FROM_BASE
```
Utility function: decodes a number from a given base.

_UTIL_MD5
```
public static final Function _UTIL_MD5
```
Utility function: calculates the MD5 hash of the given string.

_UTIL_SHA1
```
public static final Function _UTIL_SHA1
```
Utility function: calculates the SHA1 hash of the given string.

_UTIL_CRC32
```
public static final Function _UTIL_CRC32
```
Utility function: calculates the CRC32 hash of the given string.

_UTIL_TO_BYTES
```
public static final Function _UTIL_TO_BYTES
```
Utility function: gets the bytes from the given data data.

_UTIL_TO_STRING
```
public static final Function _UTIL_TO_STRING
```
Utility function: converts the specified bytes to a string.

_UTIL_UUID
```
public static final Function _UTIL_UUID
```
Utility function: returns a random unique id.

_UTIL_DEEP_EQUAL
```
public static final Function _UTIL_DEEP_EQUAL
```
Utility function: compares items in depth and offers some more options.

_UTIL_PATH
```
public static final Function _UTIL_PATH
```
Utility function: returns the path to the query file.

_UTIL_TYPE
```
public static final Function _UTIL_TYPE
```
Utility function: passes type information to fn:trace().

_UTIL_TRANSFORM
```
public static final Function _UTIL_TRANSFORM
```
XSLT function: performs an XSLT transformation.

_ZIP_BINARY_ENTRY

public static final Function _ZIP_BINARY_ENTRY

XQuery function

_ZIP_TEXT_ENTRY

public static final Function _ZIP_TEXT_ENTRY

XQuery function

_ZIP_HTML_ENTRY

public static final Function _ZIP_HTML_ENTRY

XQuery function

_ZIP_XML_ENTRY

public static final Function _ZIP_XML_ENTRY

XQuery function

_ZIP_ENTRIES

public static final Function _ZIP_ENTRIES

XQuery function

_ZIP_ZIP_FILE

public static final Function _ZIP_ZIP_FILE

XQuery function

_ZIP_UPDATE_ENTRIES

public static final Function _ZIP_UPDATE_ENTRIES

XQuery function

Field Detail
- min
```
public final int min
```
  Minimum number of arguments.
- max
```
public final int max
```
  Maximum number of arguments.
- args
```
public final SeqType[] args
```
  Argument types.

Method Detail
- values
```
public static Function[] values()
```
  Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
```
for (Function c : Function.values())
    System.out.println(c);
```
  Returns:
  an array containing the constants of this enum type, in the order they are declared
- valueOf
```
public static Function valueOf(java.lang.String name)
```
  Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
  
  Parameters:
  name - the name of the enum constant to be returned.
  
  Returns:
  the enum constant with the specified name
  
  Throws:
  
  java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
  
  java.lang.NullPointerException - if the argument is null
- get
```
public StandardFunc get(InputInfo ii,
               Expr... arg)
```
  Creates a new instance of the function.
  
  Parameters:
  ii - input info
  arg - arguments
  
  Returns:
  function
- args
```
public final java.lang.String args(java.lang.Object... arg)
```
  Returns a string representation of the function with the specified arguments. All objects are wrapped with quotes, except for the following ones:
  - integers
  - booleans (which will be suffixed with parentheses)
  - strings starting with an optional NCName and opening parenthesis
  - strings starting with angle bracket, quote, dollar sign, or space
  Parameters:
  arg - arguments
  
  Returns:
  string representation
- toString
```
public final java.lang.String toString()
```
  Overrides:
  
  toString in class java.lang.Enum<Function>

Enum Function

Enum Constant Summary

Field Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

POSITION

LAST

STRING

NUMBER

STRING_LENGTH

NORMALIZE_SPACE

NAMESPACE_URI_FROM_QNAME

AVG

COUNT

MAX

MIN

SUM

CURRENT_DATE

CURRENT_DATETIME

CURRENT_TIME

IMPLICIT_TIMEZONE

DEFAULT_COLLATION

STATIC_BASE_URI

DAY_FROM_DATE

DAY_FROM_DATETIME

DAYS_FROM_DURATION

HOURS_FROM_DATETIME

HOURS_FROM_DURATION

HOURS_FROM_TIME

MINUTES_FROM_DATETIME

MINUTES_FROM_DURATION

MINUTES_FROM_TIME

MONTH_FROM_DATE

MONTH_FROM_DATETIME

MONTHS_FROM_DURATION

SECONDS_FROM_DATETIME

SECONDS_FROM_DURATION

SECONDS_FROM_TIME

TIMEZONE_FROM_DATE

TIMEZONE_FROM_DATETIME

TIMEZONE_FROM_TIME

YEAR_FROM_DATE

YEAR_FROM_DATETIME

YEARS_FROM_DURATION

ADJUST_DATE_TO_TIMEZONE

ADJUST_DATETIME_TO_TIMEZONE

ADJUST_TIME_TO_TIMEZONE

DATETIME

FORMAT_INTEGER

FORMAT_NUMBER

FORMAT_DATETIME

FORMAT_DATE

FORMAT_TIME

FILTER

FUNCTION_NAME

FUNCTION_ARITY

FUNCTION_LOOKUP

MAP

MAP_PAIRS

FOLD_LEFT

FOLD_RIGHT

PARTIAL_APPLY

DATA

COLLECTION

DOC

DOC_AVAILABLE

PUT

UNPARSED_TEXT

UNPARSED_TEXT_LINES

UNPARSED_TEXT_AVAILABLE

PARSE_XML

URI_COLLECTION

SERIALIZE

ID

IDREF

LANG

ELEMENT_WITH_ID

ERROR