org.exist.xquery.value
Class ComputableValue

java.lang.Object
  org.exist.xquery.value.AtomicValue
      org.exist.xquery.value.ComputableValue

All Implemented Interfaces:

Comparable, Indexable, Item, Sequence

Direct Known Subclasses:

AbstractDateTimeValue, DurationValue, NumericValue

public abstract class ComputableValue
extends AtomicValue

Author:

Wolfgang Meier (wolfgang@exist-db.org)

Field Summary

Fields inherited from class org.exist.xquery.value.AtomicValue

EMPTY_VALUE

Fields inherited from interface org.exist.xquery.value.Sequence

EMPTY_SEQUENCE

Constructor Summary

ComputableValue()

Method Summary

abstract int	compareTo(Collator collator, AtomicValue other)
abstract boolean	compareTo(Collator collator, int operator, AtomicValue other)
abstract AtomicValue	convertTo(int requiredType) Convert this item into an atomic value, whose type corresponds to the specified target type.
abstract ComputableValue	div(ComputableValue other)
abstract String	getStringValue() Return the string value of this item (see the definition of string value in XPath).
abstract AtomicValue	max(Collator collator, AtomicValue other)
abstract AtomicValue	min(Collator collator, AtomicValue other)
abstract ComputableValue	minus(ComputableValue other)
abstract ComputableValue	mult(ComputableValue other)
abstract ComputableValue	plus(ComputableValue other)

Methods inherited from class org.exist.xquery.value.AtomicValue

add, addAll, atomize, clearContext, compareTo, contains, conversionPreference, copyTo, dump, effectiveBooleanValue, endsWith, getCardinality, getCollectionIterator, getDocumentSet, getItemCount, getItemType, getType, hasMany, hasOne, isCached, isEmpty, isPersistentSet, itemAt, iterate, nodeMoved, promote, removeDuplicates, serializeValue, setIsCached, setSelfAsContext, startsWith, toJavaObject, toNodeSet, toSAX, toSequence, toString, unorderedIterator

Methods inherited from class java.lang.Object

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

Constructor Detail

ComputableValue

public ComputableValue()

Method Detail

getStringValue

public abstract String getStringValue()
                               throws XPathException

Description copied from interface: Item

Return the string value of this item (see the definition of string value in XPath).

Specified by:

getStringValue in interface Item

Specified by:

getStringValue in interface Sequence

Specified by:

getStringValue in class AtomicValue

Throws:

XPathException

convertTo

public abstract AtomicValue convertTo(int requiredType)
                               throws XPathException

Description copied from interface: Item

Convert this item into an atomic value, whose type corresponds to the specified target type. requiredType should be one of the type constants defined in Type. An XPathException is thrown if the conversion is impossible.

Specified by:

convertTo in interface Item

Specified by:

convertTo in interface Sequence

Specified by:

convertTo in class AtomicValue

Parameters:

requiredType - one of the type constants defined in class Type

Throws:

XPathException

compareTo

public abstract boolean compareTo(Collator collator,
                                  int operator,
                                  AtomicValue other)
                           throws XPathException

Specified by:

compareTo in class AtomicValue

Throws:

XPathException

compareTo

public abstract int compareTo(Collator collator,
                              AtomicValue other)
                       throws XPathException

Specified by:

compareTo in class AtomicValue

Throws:

XPathException

max

public abstract AtomicValue max(Collator collator,
                                AtomicValue other)
                         throws XPathException

Specified by:

max in class AtomicValue

Throws:

XPathException

min

public abstract AtomicValue min(Collator collator,
                                AtomicValue other)
                         throws XPathException

Specified by:

min in class AtomicValue

Throws:

XPathException

minus

public abstract ComputableValue minus(ComputableValue other)
                               throws XPathException

Throws:

XPathException

plus

public abstract ComputableValue plus(ComputableValue other)
                              throws XPathException

Throws:

XPathException

mult

public abstract ComputableValue mult(ComputableValue other)
                              throws XPathException

Throws:

XPathException

div

public abstract ComputableValue div(ComputableValue other)
                             throws XPathException

Throws:

XPathException