net.sf.saxon.expr
Interface Container

All Superinterfaces:

Serializable, SourceLocator

All Known Subinterfaces:

XPathStaticContext

All Known Implementing Classes:

AbsentExtensionElement, AttributeSet, ExpressionParser.TemporaryContainer, ExtensionInstruction, GlobalParam, GlobalVariable, IDPattern, IndependentContext, JAXPXPathStaticContext, KeyDefinition, KeyPattern, LiteralResultElement, LocationPathPattern, MemoFunction, NodeTestPattern, Pattern, Procedure, SaxonAssign, SaxonBreak, SaxonCallTemplate, SaxonCatch, SaxonCollation, SaxonContinue, SaxonDoctype, SaxonEntityRef, SaxonFinally, SaxonImportQuery, SaxonIterate, SaxonMode, SaxonTry, SaxonWhile, SQLClose, SQLColumn, SQLConnect, SQLDelete, SQLInsert, SQLQuery, SQLUpdate, StyleElement, Template, UnionPattern, UserFunction, UseWhenStaticContext, XQueryExpression, XQueryFunction, XSLAnalyzeString, XSLApplyImports, XSLApplyTemplates, XSLAttribute, XSLAttributeSet, XSLCallTemplate, XSLCharacterMap, XSLChoose, XSLComment, XSLCopy, XSLCopyOf, XSLDecimalFormat, XSLDocument, XSLElement, XSLFallback, XSLForEach, XSLForEachGroup, XSLFunction, XSLGeneralIncorporate, XSLGeneralVariable, XSLIf, XSLImport, XSLImportSchema, XSLInclude, XSLKey, XSLMatchingSubstring, XSLMessage, XSLNamespace, XSLNamespaceAlias, XSLNextMatch, XSLNumber, XSLOtherwise, XSLOutput, XSLOutputCharacter, XSLParam, XSLPerformSort, XSLPreserveSpace, XSLProcessingInstruction, XSLResultDocument, XSLSequence, XSLSort, XSLStringConstructor, XSLStylesheet, XSLTemplate, XSLText, XSLValueOf, XSLVariable, XSLVariableDeclaration, XSLWhen, XSLWithParam

public interface Container
extends SourceLocator, Serializable

A Container is something other than an expression that can act as the container of an expression. It is typically an object such as a function, a global variable, or in XSLT a template, or an attribute set. When free-standing XPath expressions are compiled, the static context for the expression acts as its container.

Method Summary

int	getContainerGranularity() Get the granularity of the container.
Executable	getExecutable() Get the Executable (representing a complete stylesheet or query) of which this Container forms part
int	getHostLanguage() Get the host language (XSLT, XQuery, XPath) used to implement the code in this container
LocationProvider	getLocationProvider() Get the LocationProvider allowing location identifiers to be resolved.

Methods inherited from interface javax.xml.transform.SourceLocator

getColumnNumber, getLineNumber, getPublicId, getSystemId

Method Detail

getExecutable

Executable getExecutable()

Get the Executable (representing a complete stylesheet or query) of which this Container forms part

Returns:

the executable

getLocationProvider

LocationProvider getLocationProvider()

Get the LocationProvider allowing location identifiers to be resolved.

Returns:

the location provider

getHostLanguage

int getHostLanguage()

Get the host language (XSLT, XQuery, XPath) used to implement the code in this container

Returns:

typically Configuration.XSLT or Configuration.XQUERY

getContainerGranularity

int getContainerGranularity()

Get the granularity of the container. During successive phases of compilation, growing expression trees are rooted in containers of increasing granularity. The granularity of the container is used to avoid "repotting" a tree more frequently than is required, as this requires a complete traversal of the tree which can take a measurable time.

Returns:

0 for a temporary container created during parsing; 1 for a container that operates at the level of an XPath expression; 2 for a container at the level of a global function or template