Package org.basex.query.value.item

Class B64

java.lang.Object

org.basex.query.expr.ExprInfo

org.basex.query.expr.Expr

org.basex.query.value.Value

org.basex.query.value.item.Item

org.basex.query.value.item.Bin

org.basex.query.value.item.B64

All Implemented Interfaces:

Iterable<Item>

Direct Known Subclasses:

B64Lazy

public class B64
extends Bin

Base64 item (xs:base64Binary).

Author:

BaseX Team 2005-21, BSD License, Christian Gruen

Field Summary

Fields

Modifier and Type	Field	Description
static final B64	EMPTY	Empty value.

Fields inherited from class org.basex.query.value.item.Item

UNDEF

Fields inherited from class org.basex.query.value.Value

type

Method Summary

Modifier and Type	Method	Description
final int	diff(Item item, Collation coll, InputInfo ii)	Returns the difference between the current and the specified item.
final boolean	eq(Item item, Collation coll, StaticContext sc, InputInfo ii)	Compares the items for equality.
static B64	get(byte value)	Returns an instance of this class for single bytes.
static B64	get(byte[] value)	Returns an instance of this class.
static B64	get(byte[] value, InputInfo ii)	Returns an instance of this class.
static B64	get(Bin bin, InputInfo ii)	Returns an instance of this class.
static byte[]	parse(byte[] value, InputInfo ii)	Converts the given token into a byte array.
static byte[]	parse(Item item, InputInfo ii)	Converts the given item to a byte array.
void	plan(QueryString qs)	Creates a query string.
byte[]	string(InputInfo ii)	Returns a string representation of the value.

Methods inherited from class org.basex.query.value.item.Bin

binary, equals, input, toJava

Methods inherited from class org.basex.query.value.item.Item

atomItem, atomSize, atomValue, bool, cache, comparable, dbl, ddo, dec, description, ebv, equiv, flt, hash, instanceOf, item, itemAt, iter, itr, materialize, persistent, plan, refineType, reverse, sameKey, score, seqType, size, subsequence, test, typeId, xdmInfo

Methods inherited from class org.basex.query.value.Value

accept, checkUp, compile, copy, count, exprSize, has, inline, inlineable, isEmpty, isItem, iter, iterator, materialize, serialize, serialize, serialize, value

Methods inherited from class org.basex.query.expr.Expr

arg, args, atomIter, data, data, funcType, hasFreeVars, indexAccessible, isSimple, markTailCalls, mergeEbv, optimize, simplifyFor, typeCheck, uses, vacuous, visitAll

Methods inherited from class org.basex.query.expr.ExprInfo

toErrorString, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Details

EMPTY

public static final B64 EMPTY

Empty value.

Method Details

get

public static B64 get(byte value)

Returns an instance of this class for single bytes.

Parameters:

value - value

Returns:

instance

get

public static B64 get(byte[] value)

Returns an instance of this class.

Parameters:

value - value

Returns:

instance

get

public static B64 get(Bin bin,
 InputInfo ii)
               throws QueryException

Returns an instance of this class.

Parameters:

bin - binary input

ii - input info

Returns:

instance

Throws:

QueryException - query exception

get

public static B64 get(byte[] value,
 InputInfo ii)
               throws QueryException

Returns an instance of this class.

Parameters:

value - textual representation

ii - input info

Returns:

instance

Throws:

QueryException - query exception

string

public byte[] string(InputInfo ii)
              throws QueryException

Description copied from class: Item

Returns a string representation of the value.

Specified by:

string in class Item

Parameters:

ii - input info (can be null)

Returns:

string value

Throws:

QueryException - if the item cannot be atomized (caused by function or streaming items)

eq

public final boolean eq(Item item,
 Collation coll,
 StaticContext sc,
 InputInfo ii)
                 throws QueryException

Description copied from class: Item

Compares the items for equality.

Specified by:

eq in class Item

Parameters:

item - item to be compared

coll - collation (can be null)

sc - static context; required for comparing items of type xs:QName (can be null)

ii - input info (can be null)

Returns:

result of check

Throws:

QueryException - query exception

diff

public final int diff(Item item,
 Collation coll,
 InputInfo ii)
               throws QueryException

Description copied from class: Item

Returns the difference between the current and the specified item. This function is overwritten by the corresponding implementations.

Overrides:

diff in class Item

Parameters:

item - item to be compared

coll - collation (can be null)

ii - input info (can be null)

Returns:

difference

Throws:

QueryException - query exception

parse

public static byte[] parse(Item item,
 InputInfo ii)
                    throws QueryException

Converts the given item to a byte array.

Parameters:

item - item to be converted

ii - input info

Returns:

byte array

Throws:

QueryException - query exception

parse

public static byte[] parse(byte[] value,
 InputInfo ii)
                    throws QueryException

Converts the given token into a byte array.

Parameters:

value - value to be converted

ii - input info

Returns:

byte array

Throws:

QueryException - query exception

plan

public void plan(QueryString qs)

Description copied from class: ExprInfo

Creates a query string.

Specified by:

plan in class ExprInfo

Parameters:

qs - query string builder