org.jibx.schema.validation
Class ValidationContext

java.lang.Object
  org.jibx.schema.SchemaContextTracker
      org.jibx.schema.validation.ValidationContext

All Implemented Interfaces:

ISchemaListener, ISkipElements

public class ValidationContext
extends SchemaContextTracker
implements ISkipElements

Tracks the schema validation state. This includes order-dependent state information collected while walking the tree structure of a schema model. Collects all errors and warnings and maintains a summary of the severity of the problems found. For ease of use, this also wraps the schema name register with convenience methods for validation. TODO: separate out a generalized base class and move the base out of the schema package

Author:

Dennis M. Sosnoski

Field Summary

Fields inherited from class org.jibx.schema.SchemaContextTracker

m_nameRegister

Constructor Summary

ValidationContext()
Constructor.

Method Summary

boolean	addError(String msg, Object obj) Add error item.
void	addFatal(String msg, Object obj) Add fatal item.
void	addProblem(ValidationProblem problem) Add problem report.
protected void	addSkip(Object skip) Add element to set to be skipped.
void	addUnimplemented(String msg, Object obj) Add unimplemented feature item for current element.
void	addWarning(String msg, Object obj) Add warning item.
AttributeElement	findAttribute(QName qname) Find global attribute by name.
AttributeGroupElement	findAttributeGroup(QName qname) Find attribute group by name.
ElementElement	findElement(QName qname) Find global element by name.
GroupElement	findGroup(QName qname) Find group by name.
CommonTypeDefinition	findType(QName qname) Find global type by name.
int	getErrorCount() Get number of error problems reported.
int	getFatalCount() Get number of fatal problems reported.
ArrayList	getProblems() Get list of problems.
SchemaElement	getSchemaById(String id) Get schema element by identifier.
SchemaElement	getSchemaByNamespace(String uri) Get schema element by target namespace.
int	getSchemaCount() Get the number of schemas processed by this context.
int	getUnimplementedCount() Get number of unimplemented feature problems reported.
int	getWarningCount() Get number of warning problems reported.
boolean	isSkipped(Object obj) Check if a component is being skipped due to a fatal error.
Iterator	iterateSchemas() Get iterator for all schemas defined in this context.
void	registerAttribute(QName qname, AttributeElement def) Register global attribute in the current schema definition.
void	registerAttributeGroup(QName qname, AttributeGroupElement def) Register global attribute group in the current schema definition.
void	registerElement(QName qname, ElementElement def) Register global element in the current schema definition.
void	registerGroup(QName qname, GroupElement def) Register global group in the current schema definition.
void	registerType(QName qname, CommonTypeDefinition def) Register global type in the current schema definition.
boolean	reportProblems(ProblemHandler handler) Report problems using handler.
void	reset() Reset context for reuse.
void	setSchema(String id, SchemaElement schema) Add schema element with identifier.

Methods inherited from class org.jibx.schema.SchemaContextTracker

clearTraversed, enterSchema, exitSchema, getCurrentSchema, getNameRegister, setNameRegister

Methods inherited from class java.lang.Object

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

Constructor Detail

ValidationContext

public ValidationContext()

Constructor.

Method Detail

reset

public void reset()

Reset context for reuse.

getSchemaByNamespace

public SchemaElement getSchemaByNamespace(String uri)

Get schema element by target namespace. The target namespace must be unique.

Parameters:

uri - unique namespace URI

Returns:

schema, or null if not loaded or non-unique namespace

getSchemaById

public SchemaElement getSchemaById(String id)

Get schema element by identifier. This uses the unique schema identifier to locate a loaded schema instance.

Parameters:

id -

Returns:

schema, or null if not loaded

iterateSchemas

public Iterator iterateSchemas()

Get iterator for all schemas defined in this context.

Returns:

iterator

setSchema

public void setSchema(String id,
                      SchemaElement schema)

Add schema element with identifier. TODO: is the namespace handling sufficient?

Parameters:

id -

schema -

getSchemaCount

public int getSchemaCount()

Get the number of schemas processed by this context.

Returns:

count

getUnimplementedCount

public int getUnimplementedCount()

Get number of unimplemented feature problems reported.

Returns:

unimplemented feature problem count

getWarningCount

public int getWarningCount()

Get number of warning problems reported.

Returns:

warning problem count

getErrorCount

public int getErrorCount()

Get number of error problems reported.

Returns:

error problem count

getFatalCount

public int getFatalCount()

Get number of fatal problems reported.

Returns:

fatal problem count

registerAttribute

public void registerAttribute(QName qname,
                              AttributeElement def)

Register global attribute in the current schema definition. If the name has already been registered this creates an error for the new definition.

Parameters:

qname - name

def - attribute definition

registerAttributeGroup

public void registerAttributeGroup(QName qname,
                                   AttributeGroupElement def)

Register global attribute group in the current schema definition. If the name has already been registered this creates an error for the new definition.

Parameters:

qname - name

def - attribute definition

registerElement

public void registerElement(QName qname,
                            ElementElement def)

Register global element in the current schema definition. If the name has already been registered this creates an error for the new definition.

Parameters:

qname - name

def - element definition

registerGroup

public void registerGroup(QName qname,
                          GroupElement def)

Register global group in the current schema definition. If the name has already been registered this creates an error for the new definition.

Parameters:

qname - name

def - attribute definition

registerType

public void registerType(QName qname,
                         CommonTypeDefinition def)

Register global type in the current schema definition. If the name has already been registered this creates an error for the new definition.

Parameters:

qname - name

def - attribute definition

findAttribute

public AttributeElement findAttribute(QName qname)

Find global attribute by name.

Parameters:

qname - name

Returns:

definition, or null if not registered

findAttributeGroup

public AttributeGroupElement findAttributeGroup(QName qname)

Find attribute group by name.

Parameters:

qname - name

Returns:

definition, or null if not registered

findElement

public ElementElement findElement(QName qname)

Find global element by name.

Parameters:

qname - name

Returns:

definition, or null if not registered

findGroup

public GroupElement findGroup(QName qname)

Find group by name.

Parameters:

qname - name

Returns:

definition, or null if not registered

findType

public CommonTypeDefinition findType(QName qname)

Find global type by name.

Parameters:

qname - name

Returns:

definition, or null if not registered

addUnimplemented

public void addUnimplemented(String msg,
                             Object obj)

Add unimplemented feature item for current element. Adds an unimplemented feature item to the problem list, reporting a schema feature which is not supported but does not prevent allows reasonable operation.

Parameters:

msg - problem description

obj - source object for validation error

addWarning

public void addWarning(String msg,
                       Object obj)

Add warning item. Adds a warning item to the problem list, which is a possible problem that still allows reasonable operation.

Parameters:

msg - problem description

obj - source object for validation error

addError

public boolean addError(String msg,
                        Object obj)

Add error item. Adds an error item to the problem list, which is a definite problem that still allows validation to proceed.

Parameters:

msg - problem description

obj - source object for validation error

Returns:

true if to continue validation, false if not

addFatal

public void addFatal(String msg,
                     Object obj)

Add fatal item. Adds a fatal item to the problem list, which is a severe problem that blocks further validation within the tree branch involved. The object associated with a fatal error should always be an element.

Parameters:

msg - problem description

obj - source object for validation error (should be an element)

addProblem

public void addProblem(ValidationProblem problem)

Add problem report. The problem is added and counted as appropriate.

Parameters:

problem - details of problem report

getProblems

public ArrayList getProblems()

Get list of problems.

Returns:

problem list

addSkip

protected void addSkip(Object skip)

Add element to set to be skipped.

Parameters:

skip -

reportProblems

public boolean reportProblems(ProblemHandler handler)

Report problems using handler. This clears the problem list after they've been reported, to avoid multiple reports of the same problems.

Parameters:

handler - problem handler

Returns:

true if one or more errors, false if not

isSkipped

public boolean isSkipped(Object obj)

Description copied from interface: ISkipElements

Check if a component is being skipped due to a fatal error.

Specified by:

isSkipped in interface ISkipElements

Parameters:

obj - component to be checked

Returns:

flag for component being skipped