com.saxonica.schema
Class SchemaTypeImpl

java.lang.Object
  extended by com.saxonica.schema.SchemaStructure
      extended by com.saxonica.schema.SchemaTypeImpl
All Implemented Interfaces:
Serializable, SourceLocator, SchemaComponent, SchemaType
Direct Known Subclasses:
UserComplexType, UserSimpleType

public abstract class SchemaTypeImpl
extends SchemaStructure
implements Serializable, SchemaType

This class represents a simple type or complex type as defined in XML Schema. In the non-schema-aware version of Saxon it is used to represent built-in schema types only. In the schema-aware version it is subclassed to represent user-defined types.

See Also:
Serialized Form

Field Summary
 
Fields inherited from interface net.sf.saxon.type.SchemaType
DERIVATION_EXTENSION, DERIVATION_LIST, DERIVATION_RESTRICTION, DERIVATION_UNION, DERIVE_BY_SUBSTITUTION
 
Fields inherited from interface net.sf.saxon.type.SchemaComponent
FIXED_UP, INCOMPLETE, INVALID, UNVALIDATED, VALIDATED, VALIDATING
 
Constructor Summary
SchemaTypeImpl()
          Default constructor.
 
Method Summary
 boolean allowsDerivation(int derivation)
          Determines whether derivation (of a particular kind) from this type is allowed, based on the "final" property
 void checkTypeDerivationIsOK(SchemaType type, int block)
          Check that this type is validly derived from a given type
 boolean containingDeclarationIsElement()
          Determine whether the containing declaration is an element declaration or an attribute declaration
 SchemaType getBaseType()
          Returns the base type that this type inherits from.
 int getBaseTypeFingerprint()
          Get the fingerprint of the name of the base type of this type
 TypeReference getBaseTypeReference()
          Get the reference to the base type.
 int getBlock()
          Returns the value of the 'block' attribute for this type, as a bit-signnificant integer with fields such as SchemaType.DERIVATION_LIST and SchemaType.DERIVATION_EXTENSION
 int getContainingDeclarationName()
          Get the name of the containing element or attribute declaration, if any (and if known).
 int getDerivationMethod()
          Gets the integer code of the derivation method used to derive this type from its parent.
 String getDescription()
          Get a description of this type for use in diagnostics.
 String getDisplayName()
          Get the display name of the type: that is, a lexical QName with an arbitrary prefix
 int getFingerprint()
          Get the fingerprint of the name of this type
 String getLocalName()
          Deprecated. since 9.0: use the equivalent method getName()
 String getName()
          Get the local name of this type if it has one
 int getNameCode()
          Get the namecode of the name of this type.
 NamePool getNamePool()
          Get the NamePool in which the name of this type is defined
 String getTargetNamespace()
          Get the namespace URI of the name of this type if it has one
 boolean isAnonymousType()
          Test whether this is an anonymous type
 boolean isComplexType()
          Test whether this SchemaType is a complex type
 boolean isExternalType()
          Return true if this is an external object type, that is, a Saxon-defined type for external Java or .NET objects
 boolean isSameType(SchemaType other)
          Test whether this is the same type as another type.
 void setBaseTypeReference(TypeReference baseType)
          Sets the base type for this datatype.
 void setContainingDeclaration(int fingerprint, boolean isElement)
          Set the name of the containing declaration (for diagnostics)
 void setDerivationMethod(int method)
          Sets the derivation method code (without validating it)
 void setDerivationMethodName(String method)
          Set the derivation method name.
 void setFinalProhibitions(int finalValue)
          Sets the value of the 'final' property, indicating which types of derivation are not allowed.
 void setNameCode(int nameCode)
          Set the nameCode of the name of this type.
 
Methods inherited from class com.saxonica.schema.SchemaStructure
elaborate, fixup, getColumnNumber, getConfiguration, getFixupStatus, getLineNumber, getPublicId, getSystemId, getValidationStatus, lookForCycles, setConfiguration, setFixupStatus, setLineNumber, setLocator, setSystemId, setValidationStatus
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface net.sf.saxon.type.SchemaType
analyzeContentExpression, atomize, getSystemId, getTypedValue, isAtomicType, isSimpleType
 
Methods inherited from interface net.sf.saxon.type.SchemaComponent
getValidationStatus
 

Constructor Detail

SchemaTypeImpl

public SchemaTypeImpl()
Default constructor. For internal use only.

Method Detail

getName

public String getName()
Get the local name of this type if it has one

Specified by:
getName in interface SchemaType
Returns:
the local name of this type definition, if it has one. Return null in the case of an anonymous type.

getTargetNamespace

public String getTargetNamespace()
Get the namespace URI of the name of this type if it has one

Specified by:
getTargetNamespace in interface SchemaType
Returns:
the target namespace of this type definition, if it has one. Return null in the case of an anonymous type, and in the case of a global type defined in a no-namespace schema.

isExternalType

public boolean isExternalType()
Return true if this is an external object type, that is, a Saxon-defined type for external Java or .NET objects


getFingerprint

public int getFingerprint()
Get the fingerprint of the name of this type

Specified by:
getFingerprint in interface SchemaType
Returns:
the fingerprint. Returns an invented fingerprint for an anonymous type.

getNameCode

public int getNameCode()
Get the namecode of the name of this type. This includes the prefix from the original type declaration: in the case of built-in types, this will be a conventional prefix such as "xs" or "xdt".

Specified by:
getNameCode in interface SchemaType
Returns:
the namecode. Returns an invented namecode for an anonymous type.

isAnonymousType

public boolean isAnonymousType()
Test whether this is an anonymous type

Specified by:
isAnonymousType in interface SchemaType
Returns:
true if this SchemaType is an anonymous type

setNameCode

public void setNameCode(int nameCode)
Set the nameCode of the name of this type. For internal use only.

Parameters:
nameCode - the nameCode allocated in the namepool for this schema

getBaseTypeReference

public TypeReference getBaseTypeReference()
Get the reference to the base type. The result is never null, except in the case of the type AnyType, which is the root of the type hierarchy.


getBaseTypeFingerprint

public int getBaseTypeFingerprint()
Get the fingerprint of the name of the base type of this type

Returns:
the fingerprint. Return an invented fingerprint for an anonymous type.

getLocalName

public String getLocalName()
Deprecated. since 9.0: use the equivalent method getName()

Get the local name of this type

Returns:
the local part of the name, or null if the type is anonymous

getDisplayName

public String getDisplayName()
Get the display name of the type: that is, a lexical QName with an arbitrary prefix

Specified by:
getDisplayName in interface SchemaType
Returns:
a lexical QName identifying the type

isComplexType

public final boolean isComplexType()
Test whether this SchemaType is a complex type

Specified by:
isComplexType in interface SchemaType
Returns:
true if this SchemaType is a complex type

getBlock

public int getBlock()
Returns the value of the 'block' attribute for this type, as a bit-signnificant integer with fields such as SchemaType.DERIVATION_LIST and SchemaType.DERIVATION_EXTENSION

Specified by:
getBlock in interface SchemaType
Returns:
the value of the 'block' attribute for this type

getNamePool

public NamePool getNamePool()
Get the NamePool in which the name of this type is defined


getBaseType

public SchemaType getBaseType()
                       throws UnresolvedReferenceException
Returns the base type that this type inherits from. If this type is a Simpletype that is a built in primitive type then null is returned.

Specified by:
getBaseType in interface SchemaType
Returns:
the base type.
Throws:
UnresolvedReferenceException - if this type has no known base type. This can only arise during schema construction, since a type with an unknown base type cannot be used for validation

setBaseTypeReference

public void setBaseTypeReference(TypeReference baseType)
Sets the base type for this datatype. For internal use only.

Parameters:
baseType - the base type which this type inherits from

getDerivationMethod

public int getDerivationMethod()
Gets the integer code of the derivation method used to derive this type from its parent. Returns zero for primitive types.

Specified by:
getDerivationMethod in interface SchemaType
Returns:
a numeric code representing the derivation method, for example SchemaType.DERIVATION_RESTRICTION

allowsDerivation

public boolean allowsDerivation(int derivation)
Determines whether derivation (of a particular kind) from this type is allowed, based on the "final" property

Specified by:
allowsDerivation in interface SchemaType
Parameters:
derivation - the kind of derivation, for example SchemaType.DERIVATION_LIST
Returns:
true if this kind of derivation is allowed

setDerivationMethodName

public void setDerivationMethodName(String method)
                             throws SchemaException
Set the derivation method name. For internal use only.

Parameters:
method - the derivation method, for example "restriction"
Throws:
SchemaException - for an unknown derivation method

setDerivationMethod

public void setDerivationMethod(int method)
Sets the derivation method code (without validating it)

Parameters:
method - the derivation method as an integer code, for example SchemaType.DERIVATION_UNION

setFinalProhibitions

public void setFinalProhibitions(int finalValue)
Sets the value of the 'final' property, indicating which types of derivation are not allowed. For internal use only.

Parameters:
finalValue - the value of the final property, as a bit-significant integer

checkTypeDerivationIsOK

public void checkTypeDerivationIsOK(SchemaType type,
                                    int block)
                             throws SchemaException
Check that this type is validly derived from a given type

Specified by:
checkTypeDerivationIsOK in interface SchemaType
Parameters:
type - the type from which this type is derived
block - the derivations that are blocked by the relevant element declaration
Throws:
SchemaException - if the derivation is not allowed

setContainingDeclaration

public void setContainingDeclaration(int fingerprint,
                                     boolean isElement)
Set the name of the containing declaration (for diagnostics)

Parameters:
fingerprint - The fingerprint of the element or attribute declaration "owning" this anonymous type definition
isElement - True if the owning declaration is an element declaration, false if it is an attribute declaration

getDescription

public String getDescription()
Get a description of this type for use in diagnostics. In the case of a named type, this is the same as the display name. In the case of a type known to be defined immediately within an element or attribute declaration, it is a phrase that identifies the containing declaration. In other cases, it is a phrase of the form "defined at line L of URI". The description is designed to be inserted in a context such as "the type X is ..."

Specified by:
getDescription in interface SchemaType
Returns:
text identifing the type, for use in a phrase such as "the type XXXX".

getContainingDeclarationName

public int getContainingDeclarationName()
Get the name of the containing element or attribute declaration, if any (and if known).

Returns:
the name of the containing declaration, as a NamePool fingerprint.

containingDeclarationIsElement

public boolean containingDeclarationIsElement()
Determine whether the containing declaration is an element declaration or an attribute declaration

Returns:
true if the containin declaration is an element declaration, false if it is an attribute

isSameType

public boolean isSameType(SchemaType other)
Test whether this is the same type as another type. They are considered to be the same type if they are derived from the same type definition in the original XML representation (which can happen when there are multiple includes of the same file)

Specified by:
isSameType in interface SchemaType
Parameters:
other - the other type
Returns:
true if this is the same type as other


Copyright (C) Michael H. Kay. All rights reserved.