Package org.basex.query.value.item

Class B64Lazy

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

org.basex.query.value.item.B64Lazy

All Implemented Interfaces:

Iterable<Item>, Lazy

public final class B64Lazy
extends B64
implements Lazy

Lazy base64 item (xs:base64Binary).

Author:

BaseX Team 2005-24, BSD License, Christian Gruen

Field Summary

Fields inherited from class org.basex.query.value.item.B64

EMPTY

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

NAN_DUMMY

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

type

Constructor Summary

Constructors

Constructor	Description
B64Lazy(IO input, QueryError error)	Constructor.

Method Summary

Modifier and Type	Method	Description
byte[]	binary(InputInfo info)	Returns the binary content.
void	cache(boolean lazy, InputInfo ii)	Caches data of lazy items (i.e., those implementing the Lazy interface).
void	cache(InputInfo ii)	Caches the value.
BufferInput	input(InputInfo ii)	Returns an input stream.
boolean	isCached()	Indicates if the contents of this item have been cached.
Item	materialize(Predicate<Data> test, InputInfo ii, QueryContext qc)	Returns a materialized version of this value without dependencies to persistent data.
boolean	materialized(Predicate<Data> test, InputInfo ii)	Checks if this value is materialized, i.e., contains no persistent database nodes or function items.
void	toString(QueryString qs)	Creates a query string.

Methods inherited from class org.basex.query.value.item.B64

get, get, get, get, hash, parse, parse, string, write

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

atomicEqual, comparable, compare, equal, equals, toJava

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

atomItem, atomValue, bool, dbl, ddo, dec, deepEqual, description, flt, instanceOf, isItem, item, itemAt, iter, itr, refineType, refineType, reverse, sameType, score, seqType, size, stringInput, subsequence, test, toXml, typeId, xdmInfo

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

accept, checkUp, compactify, compile, copy, count, exprSize, get, has, inline, inlineable, isEmpty, iter, iterator, refineType, serialize, serialize, serialize, value

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

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

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

info, 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

Constructor Detail

B64Lazy

public B64Lazy(IO input,
               QueryError error)

Constructor.

Parameters:

input - input

error - error message to be thrown

Method Detail

binary

public byte[] binary(InputInfo info)
              throws QueryException

Description copied from class: Bin

Returns the binary content.

Overrides:

binary in class Bin

Parameters:

info - input info (can be null)

Returns:

content

Throws:

QueryException - query exception

input

public BufferInput input(InputInfo ii)
                  throws QueryException

Description copied from class: Item

Returns an input stream.

Overrides:

input in class Bin

Parameters:

ii - input info (can be null)

Returns:

input stream

Throws:

QueryException - query exception

cache

public void cache(boolean lazy,
                  InputInfo ii)
           throws QueryException

Description copied from class: Item

Caches data of lazy items (i.e., those implementing the Lazy interface). By calling this method, the streaming feature of lazy items will be disabled. Overwritten by Lazy, XQMap and XQArray.

Overrides:

cache in class Item

Parameters:

lazy - if false, cache immediately. if true, caching is deferred until the data is actually requested

ii - input info (can be null)

Throws:

QueryException - query exception

cache

public void cache(InputInfo ii)
           throws QueryException

Description copied from interface: Lazy

Caches the value.

Specified by:

cache in interface Lazy

Parameters:

ii - input info (can be null)

Throws:

QueryException - query exception

isCached

public boolean isCached()

Description copied from interface: Lazy

Indicates if the contents of this item have been cached.

Specified by:

isCached in interface Lazy

Returns:

result of check

materialize

public Item materialize(Predicate<Data> test,
                        InputInfo ii,
                        QueryContext qc)
                 throws QueryException

Description copied from class: Value

Returns a materialized version of this value without dependencies to persistent data. Raises an error if the value contains function items.

Overrides:

materialize in class Item

Parameters:

test - test to check if a node can be adopted unchanged

ii - input info (can be null)

qc - query context

Returns:

materialized value

Throws:

QueryException - query exception

materialized

public boolean materialized(Predicate<Data> test,
                            InputInfo ii)
                     throws QueryException

Description copied from class: Value

Checks if this value is materialized, i.e., contains no persistent database nodes or function items.

Overrides:

materialized in class Item

Parameters:

test - test to check if a node can be adopted unchanged

ii - input info (can be null)

Returns:

result of check

Throws:

QueryException - query exception

toString

public void toString(QueryString qs)

Description copied from class: ExprInfo

Creates a query string.

Overrides:

toString in class B64

Parameters:

qs - query string builder