org.basex.query.xquery.item
Class Str

java.lang.Object
  org.basex.query.xquery.expr.Expr
      org.basex.query.xquery.item.Item
          org.basex.query.xquery.item.Str

Direct Known Subclasses:

Atm, Lan, Nam, NCN, NMT, NSt, Tok, URI

public class Str
extends Item

String item.

Author:

Workgroup DBIS, University of Konstanz 2005-07, ISC License, Christian Gruen

Field Summary

static Str

ZERO String data.

Fields inherited from class org.basex.query.xquery.expr.Expr

type

Constructor Summary

Str(byte[] v, Type t)
Constructor.

Method Summary

boolean	bool() Returns a boolean representation of the item.
double	dbl() Returns a double 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 Str	get(byte[] v) Returns an instance of this class.
long	itr() Returns a numeric (long) representation of the item.
boolean	s() Checks if this is a string item.
static void	serialize(PrintOutput out, byte[] val) Serializes the specified text.
void	serialize(PrintOutput out, XQContext ctx, int level) Serializes the item.
byte[]	str() Returns an atomized string.
java.lang.String	toString()

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

castErr, comp, eval, i, info, iter, serialize, size

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

cls, d, e, n, node, u

Methods inherited from class java.lang.Object

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

Field Detail

ZERO

public static final Str ZERO

String data.

Constructor Detail

Str

public Str(byte[] v,
           Type t)

Constructor.

Parameters:

v - value

t - data type

Method Detail

bool

public boolean bool()

Description copied from class: Item

Returns a boolean representation of the item.

Overrides:

bool in class Item

Returns:

boolean value

dbl

public double dbl()
           throws XQException

Description copied from class: Item

Returns a double representation of the item.

Overrides:

dbl in class Item

Returns:

double value

Throws:

XQException - evaluation exception

diff

public int diff(Item it)
         throws XQException

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:

XQException - evaluation exception

eq

public boolean eq(Item it)
           throws XQException

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:

XQException - evaluation exception

flt

public final float flt()
                throws XQException

Description copied from class: Item

Returns a float representation of the item.

Overrides:

flt in class Item

Returns:

float value

Throws:

XQException - evaluation exception

get

public static Str get(byte[] v)

Returns an instance of this class.

Parameters:

v - value

Returns:

instance

itr

public long itr()
         throws XQException

Description copied from class: Item

Returns a numeric (long) representation of the item.

Overrides:

itr in class Item

Returns:

long value

Throws:

XQException - evaluation exception

s

public boolean s()

Description copied from class: Expr

Checks if this is a string item.

Overrides:

s in class Expr

Returns:

result of check

serialize

public static void serialize(PrintOutput out,
                             byte[] val)
                      throws java.io.IOException

Serializes the specified text.

Parameters:

out - output stream

val - text to be serialized

Throws:

java.io.IOException - I/O exception

serialize

public final void serialize(PrintOutput out,
                            XQContext ctx,
                            int level)
                     throws java.io.IOException

Description copied from class: Item

Serializes the item.

Overrides:

serialize in class Item

Parameters:

out - output stream

ctx - query context

level - current level

Throws:

java.io.IOException - I/O exception

str

public final byte[] str()

Description copied from class: Expr

Returns an atomized string.

Overrides:

str in class Expr

Returns:

string representation

toString

public java.lang.String toString()

Overrides:

toString in class Item