Package net.sf.saxon.ma.map

Class BigDecimalMapKey

java.lang.Object

net.sf.saxon.ma.map.BigDecimalMapKey

All Implemented Interfaces:

AtomicMatchKey

public class BigDecimalMapKey
extends Object
implements AtomicMatchKey

A BigDecimalMapKey is the AtomicMatchKey used for any numeric value that is not (a) numerically equal to some 32-bit integer, or (b) one of the special values NaN, +INF, or -INF. It encapsulates a BigDecimal, which must be scaled to ensure that the equals() and hashcode methods follow the XPath-defined equality rules.

Constructor Summary

Constructors

Constructor	Description
BigDecimalMapKey(BigDecimal key)

Method Summary

Modifier and Type	Method	Description
AtomicValue	asAtomic()	Get an atomic value that encapsulates this match key.
boolean	equals(Object obj)	Indicates whether some other object is "equal to" this one.
int	hashCode()	Returns a hash code value for the object.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface net.sf.saxon.expr.sort.AtomicMatchKey

longHashCode

Constructor Details

BigDecimalMapKey

public BigDecimalMapKey(BigDecimal key)

Method Details

asAtomic

public AtomicValue asAtomic()

Get an atomic value that encapsulates this match key. Needed to support the collation-key() function.

Specified by:

asAtomic in interface AtomicMatchKey

Returns:

an atomic value that encapsulates this match key. NB: this is NOT (necessarily) the atomic value from which the AtomicMatchKey was derived.

equals

public boolean equals(Object obj)

Indicates whether some other object is "equal to" this one. The algorithm for allocating map keys is designed to ensure that a numeric value that is numerically equal to some 32-bit integer is always represented by an instance of Int32MapKey, and therefore the keys can be directly compared using an integer comparison.

Overrides:

equals in class Object

hashCode

public int hashCode()

Returns a hash code value for the object.

Overrides:

hashCode in class Object