org.basex.query.item
Class Dec

java.lang.Object
  org.basex.query.ExprInfo
      org.basex.query.expr.Expr
          org.basex.query.item.Item
              org.basex.query.item.Dec

public final class Dec
extends Item

Decimal item.

Author:

Workgroup DBIS, University of Konstanz 2005-09, ISC License, Christian Gruen

Field Summary

static Dec

ZERO Zero value.

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

type

Constructor Summary

Dec(java.math.BigDecimal d, Type t)
Constructor.

Dec(byte[] t)
Constructor.

Method Summary

boolean	bool() Returns a boolean representation of the item.
double	dbl() Returns a double representation of the item.
java.math.BigDecimal	dec() Returns a decimal representation of the item.
int	diff(Item it) Returns the difference between the current and the specified item.
boolean	eq(Item it) Checks the items for equality.
float	flt() Returns a float representation of the item.
static Dec	get(java.math.BigDecimal d) Constructor.
static Dec	get(double d) Constructor.
int	hash() Returns a hash code.
long	itr() Returns an integer (long) representation of the item.
java.lang.Object	java() Returns a Java object.
static java.math.BigDecimal	parse(byte[] val) Converts the given token into a decimal value.
static java.math.BigDecimal	parse(double val) Converts the given double into a decimal value.
byte[]	str() Returns an atomized string.

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

atomic, castErr, comp, d, duplicates, ebv, i, iter, iter, n, name, node, plan, removable, returned, s, score, score, serialize, test, toString, u, uses

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

addText, checkCtx, checkDbl, checkItr, e, indexAccessible, indexEquivalent, remove, sameAs, size

Methods inherited from class org.basex.query.ExprInfo

color, info

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

ZERO

public static final Dec ZERO

Zero value.

Constructor Detail

Dec

public Dec(byte[] t)

Constructor.

Parameters:

t - string representation

Dec

public Dec(java.math.BigDecimal d,
           Type t)

Constructor.

Parameters:

d - decimal value

t - string representation

Method Detail

get

public static Dec get(java.math.BigDecimal d)

Constructor.

Parameters:

d - big decimal value

Returns:

value

get

public static Dec get(double d)

Constructor.

Parameters:

d - big decimal value

Returns:

value

str

public byte[] str()

Description copied from class: Item

Returns an atomized string.

Overrides:

str in class Item

Returns:

string representation

bool

public boolean bool()

Description copied from class: Item

Returns a boolean representation of the item.

Overrides:

bool in class Item

Returns:

boolean value

itr

public long itr()

Description copied from class: Item

Returns an integer (long) representation of the item.

Overrides:

itr in class Item

Returns:

long value

flt

public float flt()

Description copied from class: Item

Returns a float representation of the item.

Overrides:

flt in class Item

Returns:

float value

dbl

public double dbl()

Description copied from class: Item

Returns a double representation of the item.

Overrides:

dbl in class Item

Returns:

double value

dec

public java.math.BigDecimal dec()

Description copied from class: Item

Returns a decimal representation of the item.

Overrides:

dec in class Item

Returns:

decimal value

eq

public boolean eq(Item it)
           throws QueryException

Description copied from class: Item

Checks the items for equality.

Specified by:

eq in class Item

Parameters:

it - item to be compared.

Returns:

result of check

Throws:

QueryException - evaluation exception

diff

public int diff(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:

it - item to be compared.

Returns:

difference

Throws:

QueryException - evaluation exception

hash

public int hash()

Description copied from class: Item

Returns a hash code.

Overrides:

hash in class Item

Returns:

hash code

java

public java.lang.Object java()

Description copied from class: Item

Returns a Java object.

Overrides:

java in class Item

Returns:

string representation

parse

public static java.math.BigDecimal parse(double val)
                                  throws QueryException

Converts the given double into a decimal value.

Parameters:

val - value to be converted

Returns:

double value

Throws:

QueryException - possible converting exception

parse

public static java.math.BigDecimal parse(byte[] val)
                                  throws QueryException

Converts the given token into a decimal value.

Parameters:

val - value to be converted

Returns:

double value

Throws:

QueryException - possible converting exception