Package net.sf.saxon.expr
Interface StaticContext
- All Known Subinterfaces:
XPathStaticContext
,XSLTStaticContext
- All Known Implementing Classes:
AbstractStaticContext
,DedicatedStaticContext
,ExpressionContext
,IndependentContext
,JAXPXPathStaticContext
,QueryLibrary
,QueryModule
,UseWhenStaticContext
public interface StaticContext
A StaticContext contains the information needed while an expression or pattern
is being parsed. The information is also sometimes needed at run-time.
-
Method Summary
Modifier and TypeMethodDescriptionbindVariable
(StructuredQName qName) Bind a variable used in this element to the XSLVariable element in which it is declaredGet the Base URI of the stylesheet element, for resolving any relative URI's used in the expression.getCollation
(String name) Get a named collation.Get the system configurationGet a DecimalFormatManager to resolve the names of decimal formats used in calls to the format-number() function.Get the name of the default collation.Get the default XPath namespace for elements and typesGet the default function namespaceGet the function library containing all the in-scope functions available in this static contextGet the set of imported schemasint
Get the line number of the expression within its containing entity Returns -1 if no line number is availableGet the location map.Get the NamePool used for compiling expressionsGet a namespace resolver to resolve the namespaces declared in this static context.Get the required type of the context item.Get the System ID of the container of the expression.getURIForPrefix
(String prefix) Get the URI for a namespace prefix.Get the XPath language level supported, as a decimal value.boolean
Ask whether a built-in type is available in this context.boolean
isImportedSchema
(String namespace) Ask whether a Schema for a given target namespace has been imported.boolean
Determine whether backwards compatibility mode is usedboolean
Ask whether expressions compiled under this static context are schema-aware.void
issueWarning
(String message, SourceLocator locator) Issue a compile-time warning.Construct a dynamic context for early evaluation of constant subexpressions.
-
Method Details
-
getConfiguration
Configuration getConfiguration()Get the system configuration- Returns:
- the Saxon configuration
-
isSchemaAware
boolean isSchemaAware()Ask whether expressions compiled under this static context are schema-aware. They must be schema-aware if the expression is to handle typed (validated) nodes- Returns:
- true if expressions are schema-aware
-
makeEarlyEvaluationContext
XPathContext makeEarlyEvaluationContext()Construct a dynamic context for early evaluation of constant subexpressions.- Returns:
- a newly constructed dynamic context
-
getLocationMap
LocationMap getLocationMap()Get the location map. This is a mapping from short location ids held with each expression or subexpression, to a fully-resolved location in a source stylesheet or query.- Returns:
- the location map
-
issueWarning
Issue a compile-time warning.- Parameters:
message
- The warning message. This should not contain any prefix such as "Warning".locator
- the location of the construct in question. May be null.
-
getSystemId
String getSystemId()Get the System ID of the container of the expression. This is the containing entity (file) and is therefore useful for diagnostics. Use getBaseURI() to get the base URI, which may be different.- Returns:
- the system ID
-
getLineNumber
int getLineNumber()Get the line number of the expression within its containing entity Returns -1 if no line number is available- Returns:
- the line number, or -1 if not available
-
getBaseURI
String getBaseURI()Get the Base URI of the stylesheet element, for resolving any relative URI's used in the expression. Used by the document(), doc(), resolve-uri(), and base-uri() functions. May return null if the base URI is not known.- Returns:
- the static base URI, or null if not known
-
getURIForPrefix
Get the URI for a namespace prefix. The default namespace is NOT used when the prefix is empty.- Parameters:
prefix
- The namespace prefix.- Returns:
- the corresponding namespace URI
- Throws:
XPathException
- if the prefix is not declared; the associated error code should be XPST0081
-
getNamePool
NamePool getNamePool()Get the NamePool used for compiling expressions- Returns:
- the name pool
-
bindVariable
Bind a variable used in this element to the XSLVariable element in which it is declared- Parameters:
qName
- The name of the variable- Returns:
- an expression representing the variable reference, This will often be
a
VariableReference
, suitably initialized to refer to the corresponding variable declaration, but in general it can be any expression. - Throws:
XPathException
-
getFunctionLibrary
FunctionLibrary getFunctionLibrary()Get the function library containing all the in-scope functions available in this static context- Returns:
- the function library
-
getCollation
Get a named collation.- Parameters:
name
- The name of the required collation. Supply null to get the default collation.- Returns:
- the collation; or null if the required collation is not found.
-
getDefaultCollationName
String getDefaultCollationName()Get the name of the default collation.- Returns:
- the name of the default collation; or the name of the codepoint collation if no default collation has been defined
-
getDefaultElementNamespace
String getDefaultElementNamespace()Get the default XPath namespace for elements and types- Returns:
- the default namespace, or NamespaceConstant.NULL for the non-namespace
-
getDefaultFunctionNamespace
String getDefaultFunctionNamespace()Get the default function namespace- Returns:
- the default namespace for function names
-
isInBackwardsCompatibleMode
boolean isInBackwardsCompatibleMode()Determine whether backwards compatibility mode is used- Returns:
- true if 1.0 compaibility mode is in force.
-
isImportedSchema
Ask whether a Schema for a given target namespace has been imported. Note that the in-scope element declarations, attribute declarations and schema types are the types registered with the (schema-aware) configuration, provided that their namespace URI is registered in the static context as being an imported schema namespace. (A consequence of this is that within a Configuration, there can only be one schema for any given namespace, including the null namespace).- Parameters:
namespace
- the target namespace in question- Returns:
- true if the given namespace has been imported
-
getImportedSchemaNamespaces
Get the set of imported schemas- Returns:
- a Set, the set of URIs representing the target namespaces of imported schemas, using the zero-length string to denote the "null" namespace.
-
isAllowedBuiltInType
Ask whether a built-in type is available in this context. This method caters for differences between host languages as to which set of types are built in.- Parameters:
type
- the supposedly built-in type. This will always be a type in the XS namespace.- Returns:
- true if this type can be used in this static context
-
getNamespaceResolver
NamespaceResolver getNamespaceResolver()Get a namespace resolver to resolve the namespaces declared in this static context.- Returns:
- a namespace resolver.
-
getRequiredContextItemType
ItemType getRequiredContextItemType()Get the required type of the context item. If no type has been explicitly declared for the context item, an instance of AnyItemType (representing the type item()) is returned.- Returns:
- the required type of the context item
- Since:
- 9.3
-
getDecimalFormatManager
DecimalFormatManager getDecimalFormatManager()Get a DecimalFormatManager to resolve the names of decimal formats used in calls to the format-number() function.- Returns:
- the decimal format manager for this static context, or null if no named decimal formats are available in this environment.
- Since:
- 9.2
-
getXPathLanguageLevel
DecimalValue getXPathLanguageLevel()Get the XPath language level supported, as a decimal value. The current levels supported are 2.0, and 3.0. The default is 2.0. If running XQuery 1.0, the value is 2.0; if running XQuery 3.0, it is 3.0.- Returns:
- the XPath language level; the return value will be either
DecimalValue.TWO
orDecimalValue.THREE
- Since:
- 9.3
-