Package net.sf.saxon.ma.map

Class MapWithTypeCache

java.lang.Object

net.sf.saxon.ma.MapOrArray

net.sf.saxon.ma.map.MapItem

net.sf.saxon.ma.map.MapWithTypeCache

All Implemented Interfaces:

Callable, FunctionItem, GroundedValue, Item, Sequence

Direct Known Subclasses:

AbstractFixedMap, DeltaMap, ExtensibleMap

public abstract class MapWithTypeCache
extends MapItem

Nested Class Summary

Nested classes/interfaces inherited from class net.sf.saxon.ma.map.MapItem

MapItem.KeyIterator

Field Summary

Fields

Modifier and Type	Field	Description
protected PlainType	knownKeyType
protected SequenceType	knownValueType

Fields inherited from class net.sf.saxon.ma.map.MapItem

mapConstructorDuplicatesAction, xslMapDuplicatesAction, xslRecordDuplicatesAction

Constructor Summary

Constructors

Constructor	Description
MapWithTypeCache()

Method Summary

Modifier and Type	Method	Description
boolean	conforms(PlainType keyType, SequenceType valueType)	Ask whether the map conforms to a given map type.
protected void	setKnownType(PlainType keyType, SequenceType valueType)

Methods inherited from class net.sf.saxon.ma.map.MapItem

atomize, call, deepEqual40, deepEquals, effectiveBooleanValue, entries, export, followingKeyValuePairs, get, getAnnotations, getArity, getDescription, getFunctionItemType, getFunctionName, getGenre, getItemType, getItemTypeOfSequence, getOperandRoles, getSpecVersion, getTypedValue, getU, getUnicodeStringValue, getWithPlan, isArray, isEmpty, isKnownToConform, isMap, isTrustedResultType, itemAt, keys, keyValuePairs, makeNewContext, mapToString, precedingKeyValuePairs, put, remove, setSpecVersion, size, toShortString

Methods inherited from class net.sf.saxon.ma.MapOrArray

obtainRootJNode

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.saxon.om.FunctionItem

isSequenceVariadic

Methods inherited from interface net.sf.saxon.om.GroundedValue

asIterable, concatenate, containsNode, materialize

Methods inherited from interface net.sf.saxon.om.Item

getLabel, getLength, getStringValue, head, isStreamed, iterate, reduce, subsequence

Methods inherited from interface net.sf.saxon.om.Sequence

makeRepeatable

Field Details

knownKeyType

protected PlainType knownKeyType

knownValueType

protected SequenceType knownValueType

Constructor Details

MapWithTypeCache

public MapWithTypeCache()

Method Details

setKnownType

protected void setKnownType(PlainType keyType,
 SequenceType valueType)

conforms

public boolean conforms(PlainType keyType,
 SequenceType valueType)

Ask whether the map conforms to a given map type. This implementation caches the given type to avoid a complete scan of the map entries in cases where the type has already been established; this also involves passing on available type information when new maps are created using put() and remove() (which is done in subclasses).

Overrides:

conforms in class MapItem

Parameters:

keyType - the required keyType

valueType - the required valueType

Returns:

true if the map conforms to the required type