org.basex.query.xquery.item
Class Itr

java.lang.Object
  extended by org.basex.query.ExprInfo
      extended by org.basex.query.xquery.expr.Expr
          extended by org.basex.query.xquery.item.Item
              extended by org.basex.query.xquery.item.Num
                  extended by org.basex.query.xquery.item.Itr

public class Itr
extends Num

Integer item.

Author:
Workgroup DBIS, University of Konstanz 2005-08, ISC License, Christian Gruen

Nested Class Summary
 
Nested classes/interfaces inherited from class org.basex.query.xquery.expr.Expr
Expr.Return, Expr.Using
 
Field Summary
static Itr ZERO
          Zero value.
 
Fields inherited from class org.basex.query.xquery.item.Item
type
 
Constructor Summary
Itr(long v, Type 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 Itr get(long v)
          Returns an instance of this class.
 int hash()
          Returns a hash code.
static Iter iter(long v)
          Returns an iterator.
 long itr()
          Returns an integer (long) representation of the item.
 java.lang.Object java()
          Returns a Java object.
 byte[] str()
          Returns an atomized string.
 
Methods inherited from class org.basex.query.xquery.item.Item
castErr, comp, d, i, iter, iter, n, name, node, plan, returned, s, score, score, serialize, size, toString, u, uses
 
Methods inherited from class org.basex.query.xquery.expr.Expr
e
 
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 Itr ZERO
Zero value.

Constructor Detail

Itr

public Itr(long v,
           Type t)
Constructor.

Parameters:
v - value
t - data type
Method Detail

get

public static Itr get(long v)
Returns an instance of this class.

Parameters:
v - value
Returns:
instance

iter

public static Iter iter(long v)
Returns an iterator.

Parameters:
v - value
Returns:
item

str

public final byte[] str()
Description copied from class: Item
Returns an atomized string.

Overrides:
str in class Item
Returns:
string representation

bool

public final boolean bool()
Description copied from class: Item
Returns a boolean representation of the item.

Overrides:
bool in class Item
Returns:
boolean value

itr

public final 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 final float flt()
Description copied from class: Item
Returns a float representation of the item.

Overrides:
flt in class Item
Returns:
float value

dbl

public final 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 final 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

diff

public final 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

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