net.sf.saxon.expr
Interface EvaluableItem

All Known Implementing Classes:

Adjust, Aggregate, AnalyzeString, ApplyImports, ApplyTemplates, ArithmeticExpression, ArithmeticExpression10, Assign, Assignation, AtomicMappingExpression, AtomicSequenceConverter, Atomizer, AttributeCreator, Available, AxisExpression, BaseURI, BasicUpdatingExpression, BinaryExpression, Block, BooleanExpression, BooleanFn, BreakInstr, CallTemplate, CardinalityChecker, CastableExpression, CastExpression, Choose, CodepointEqual, CodepointsToString, CollatingFunction, Collection, Comment, Compare, CompareToIntegerConstant, CompileTimeFunction, Component, ComputedAttribute, ComputedElement, Concat, ConditionalSorter, Contains, ContextCall, ContextItemExpression, ContinueInstr, Copy, CopyModifyExpression, CopyOf, Current, CurrentDateTime, CurrentGroup, CurrentItemExpression, Data, DateTimeConstructor, DeepEqual, DefaultCollation, DeleteExpression, DistinctValues, Doc, DocAvailable, Doctype, Document, DocumentInstr, DocumentSorter, EagerLetExpression, ElementCreator, EndsWith, Error, ErrorExpression, EscapeURI, Existence, Expression, FilterExpression, FirstItemExpression, FixedAttribute, FixedElement, ForceCase, ForEach, ForEachGroup, ForExpression, FormatDate, FormatNumber, FunctionArity, FunctionCall, FunctionItemExpression, FunctionName, FunctionSequenceCoercer, GeneralComparison, GeneralComparison10, GeneralComparisonEE, GeneralVariable, GlobalParam, GlobalVariable, Id, IdentityComparison, Idref, IndexedFilterExpression, IndexedLookupExpression, IndexOf, InScopePrefixes, Insert, InsertExpression, InstanceOfExpression, Instruction, IntegerRangeTest, IntegratedFunctionCall, IsLastExpression, ItemChecker, IterateInstr, JavaExtensionFunctionCall, KeyFn, Lang, Last, LastItemExpression, LazyExpression, LetExpression, Literal, LocalParam, LocalVariable, LocalVariableReference, Matches, Message, Minimax, NamePart, NamespaceConstructor, NamespaceForPrefix, NegateExpression, NextMatch, Nilled, NormalizeSpace, NormalizeUnicode, NumberFn, NumberInstruction, NumericPromoter, OuterForExpression, ParentNodeConstructor, ParentNodeExpression, PartialApply, PathExpression, PatternMatchExpression, PatternSponsor, Position, ProcessingInstruction, PromoteToDouble, PromoteToFloat, Put, QNameFn, QuantifiedExpression, QuerySimpleContentConstructor, RangeExpression, RegexGroup, Remove, RenameExpression, Replace, ReplaceNodeExpression, ReplaceValueExpression, ResolveQName, ResolveURI, ResultDocument, Reverse, Root, RootExpression, Rounding, SimpleContentConstructor, SimpleExpression, SimpleNodeConstructor, SingleNodeExpression, SingletonAtomizer, SingletonComparison, SlashExpression, SortExpression, StartsWith, StaticBaseURI, StreamingApplyTemplates, StreamingCopy, StringFn, StringJoin, StringLength, StringLiteral, StringToCodepoints, Subsequence, Substring, SubstringAfter, SubstringBefore, SuppliedParameterReference, SwitchExpression, SystemFunction, SystemProperty, TailCallLoop, TailExpression, Tokenize, Trace, TraceExpression, TraceInstruction, TraceWrapper, Translate, TreatFn, TryCatch, TupleExpression, TupleSorter, UnaryExpression, Unordered, UnparsedEntity, UnparsedText, UntypedAtomicConverter, UseAttributeSets, UserFunctionCall, ValueComparison, ValueOf, VariableReference, VennExpression, While, WithParam, XPathFunctionCall

public interface EvaluableItem

This interface is a simple subset of the Expression interface, that provides a single method to evaluate the result of an expression as a single item

Method Summary

Item	evaluateItem(XPathContext context) Return an item

Method Detail

evaluateItem

Item evaluateItem(XPathContext context)
                  throws XPathException

Return an item

Parameters:

context - the dynamic evaluation context

Returns:

the item

Throws:

XPathException