org.basex.query.item

Class Bln

java.lang.Object

org.basex.data.ExprInfo

org.basex.query.expr.Expr

org.basex.query.item.Value

org.basex.query.item.Item

org.basex.query.item.Bln

All Implemented Interfaces:

java.lang.Iterable<Item>

public final class Bln
extends Item

Boolean item.

Author:

BaseX Team 2005-12, BSD License, Christian Gruen

Nested Class Summary

Nested classes/interfaces inherited from class org.basex.query.expr.Expr

Expr.Use

Field Summary

Fields

Modifier and Type	Field and Description
static Bln	FALSE Static boolean item without scoring.
static Bln	TRUE Static boolean item without scoring.

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

UNDEF

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

type

Method Summary

Methods

Modifier and Type	Method and Description
boolean	bool(InputInfo ii) Returns a boolean representation of the value.
double	dbl(InputInfo ii) Returns a double representation of the value.
java.math.BigDecimal	dec(InputInfo ii) Returns a decimal representation of the value.
int	diff(InputInfo ii, Item it) Returns the difference between the current and the specified item.
boolean	eq(InputInfo ii, Item it) Checks the items for equality.
float	flt(InputInfo ii) Returns a float representation of the value.
static Bln	get(boolean b) Returns a static item instance.
static Bln	get(double s) Constructor, adding a full-text score.
long	itr(InputInfo ii) Returns an integer (long) representation of the value.
static boolean	parse(byte[] str, InputInfo ii) Converts the specified string to a boolean.
boolean	sameAs(Expr cmp) Compares the current and specified expression for equality.
byte[]	string() Returns the string value.
byte[]	string(InputInfo ii) Returns a string representation of the value.
java.lang.Boolean	toJava() Returns a Java representation of the value.
java.lang.String	toString()

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

comparable, ebv, equiv, hash, homogenous, input, isItem, item, itemAt, iter, iterable, plan, score, score, serialize, size, test, type, writeTo, xdmInfo

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

cache, comp, count, data, description, info, isValue, iter, iterator, removable, remove, uses, value

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

addText, compEbv, hasFreeVars, indexAccessible, indexEquivalent, isEmpty, isFunction, isVacuous, markTailCalls

Methods inherited from class java.lang.Object

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

Field Detail

TRUE

public static final Bln TRUE

Static boolean item without scoring.

FALSE

public static final Bln FALSE

Static boolean item without scoring.

Method Detail

get

public static Bln get(double s)

Constructor, adding a full-text score.

Parameters:

s - score value

Returns:

item

get

public static Bln get(boolean b)

Returns a static item instance.

Parameters:

b - boolean value

Returns:

item

string

public byte[] string(InputInfo ii)

Description copied from class: Item

Returns a string representation of the value.

Specified by:

string in class Item

Parameters:

ii - input info, use null if none is available

Returns:

string value

string

public byte[] string()

Returns the string value.

Returns:

string value

bool

public boolean bool(InputInfo ii)

Description copied from class: Item

Returns a boolean representation of the value.

Overrides:

bool in class Item

Parameters:

ii - input info

Returns:

boolean value

itr

public long itr(InputInfo ii)

Description copied from class: Item

Returns an integer (long) representation of the value.

Overrides:

itr in class Item

Parameters:

ii - input info

Returns:

long value

flt

public float flt(InputInfo ii)

Description copied from class: Item

Returns a float representation of the value.

Overrides:

flt in class Item

Parameters:

ii - input info

Returns:

float value

dbl

public double dbl(InputInfo ii)

Description copied from class: Item

Returns a double representation of the value.

Overrides:

dbl in class Item

Parameters:

ii - input info

Returns:

double value

dec

public java.math.BigDecimal dec(InputInfo ii)

Description copied from class: Item

Returns a decimal representation of the value.

Overrides:

dec in class Item

Parameters:

ii - input info

Returns:

decimal value

eq

public boolean eq(InputInfo ii,
         Item it)
           throws QueryException

Description copied from class: Item

Checks the items for equality.

Specified by:

eq in class Item

Parameters:

ii - input info

it - item to be compared

Returns:

result of check

Throws:

QueryException - query exception

diff

public int diff(InputInfo ii,
       Item it)
         throws QueryException

Description copied from class: Item

Returns the difference between the current and the specified item.

Overrides:

diff in class Item

Parameters:

ii - input info

it - item to be compared

Returns:

difference

Throws:

QueryException - query exception

toJava

public java.lang.Boolean toJava()

Description copied from class: Value

Returns a Java representation of the value.

Specified by:

toJava in class Value

Returns:

Java object

sameAs

public boolean sameAs(Expr cmp)

Description copied from class: Expr

Compares the current and specified expression for equality.

Overrides:

sameAs in class Expr

Parameters:

cmp - expression to be compared

Returns:

result of check

parse

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

Converts the specified string to a boolean.

Parameters:

str - string to be checked

ii - input info

Returns:

result of check

Throws:

QueryException - query exception

toString

public java.lang.String toString()

Specified by:

toString in class ExprInfo