org.basex.query.item

Class Str

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.Str

All Implemented Interfaces:

java.lang.Iterable<Item>

Direct Known Subclasses:

Atm, Uri

public class Str
extends Item

String 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 Str	ZERO Zero-length string.

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.
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.
static Str	get(byte[] v) Returns an instance of this class.
static Str	get(java.lang.Object v) Returns an instance of this class.
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.String	toJava() Returns a Java representation of the value.
java.lang.String	toString()

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

comparable, dbl, dec, ebv, equiv, flt, hash, homogenous, input, isItem, item, itemAt, iter, iterable, itr, 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

ZERO

public static final Str ZERO

Zero-length string.

Method Detail

get

public static Str get(byte[] v)

Returns an instance of this class.

Parameters:

v - value

Returns:

instance

get

public static Str get(java.lang.Object v)

Returns an instance of this class.

Parameters:

v - object (will be converted to token)

Returns:

instance

string

public final 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 final byte[] string()

Returns the string value.

Returns:

string value

bool

public final 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

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

sameAs

public final 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

toJava

public final java.lang.String toJava()

Description copied from class: Value

Returns a Java representation of the value.

Specified by:

toJava in class Value

Returns:

Java object

toString

public final java.lang.String toString()

Specified by:

toString in class ExprInfo