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/*
* Copyright (c) 2004 World Wide Web Consortium,
*
* (Massachusetts Institute of Technology, European Research Consortium for
* Informatics and Mathematics, Keio University). All Rights Reserved. This
* work is distributed under the W3C(r) Software License [1] in the hope that
* it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
*/
package org.w3c.dom;
/**
* The DOMConfiguration interface represents the configuration
* of a document and maintains a table of recognized parameters. Using the
* configuration, it is possible to change
* Document.normalizeDocument() behavior, such as replacing the
* CDATASection nodes with Text nodes or
* specifying the type of the schema that must be used when the validation
* of the Document is requested. DOMConfiguration
* objects are also used in [DOM Level 3 Load and Save]
* in the DOMParser and DOMSerializer interfaces.
* The parameter names used by the DOMConfiguration object
* are defined throughout the DOM Level 3 specifications. Names are
* case-insensitive. To avoid possible conflicts, as a convention, names
* referring to parameters defined outside the DOM specification should be
* made unique. Because parameters are exposed as properties in names
* are recommended to follow the section 5.16 Identifiers of [Unicode] with the addition of the character '-' (HYPHEN-MINUS) but it is not
* enforced by the DOM implementation. DOM Level 3 Core Implementations are
* required to recognize all parameters defined in this specification. Some
* parameter values may also be required to be supported by the
* implementation. Refer to the definition of the parameter to know if a
* value must be supported or not.
*
Note: Parameters are similar to features and properties used in
* SAX2 [SAX].
*
The following list of parameters defined in the DOM:
*
* -
*
"canonical-form"
* -
*
* true- [optional] Canonicalize the document according to the rules specified in [Canonical XML],
* such as removing the
DocumentType node (if any) from the
* tree, or removing superfluous namespace declarations from each element.
* Note that this is limited to what can be represented in the DOM; in
* particular, there is no way to specify the order of the attributes in the
* DOM. In addition, Setting this parameter to true will also
* set the state of the parameters listed below. Later changes to the state
* of one of those parameters will revert "canonical-form" back to
* false. Parameters set to false: "entities", "
* normalize-characters", "cdata-sections". Parameters set to
* true: "namespaces", "namespace-declarations", "well-formed",
* "element-content-whitespace". Other parameters are not changed unless
* explicitly specified in the description of the parameters.
* -
*
false
* - [required] (default)Do not canonicalize the document.
*
* "cdata-sections"-
*
* -
*
true
* - [required] (default)Keep
CDATASection nodes in the document.
* false- [required]Transform
CDATASection nodes in the document into
* Text nodes. The new Text node is then combined
* with any adjacent Text node.
*
* -
*
"check-character-normalization"
* -
*
* true- [optional] Check if the characters in the document are fully
* normalized, as defined in appendix B of [XML 1.1]. When a
* sequence of characters is encountered that fails normalization checking,
* an error with the
DOMError.type equals to
* "check-character-normalization-failure" is issued.
* false- [required] (default)Do not check if characters are normalized.
*
* "comments"-
*
* -
*
true
* - [required] (default)Keep
Comment nodes in the document.
* false- [required]Discard
Comment nodes in the document.
*
* -
*
"datatype-normalization"
* -
*
* true- [optional] Expose schema normalized values in the tree, such as XML
* Schema normalized values in the case of XML Schema. Since this parameter requires to have schema
* information, the "validate" parameter will also be set to
*
true. Having this parameter activated when "validate" is
* false has no effect and no schema-normalization will happen.
* Note: Since the document contains the result of the XML 1.0
* processing, this parameter does not apply to attribute value
* normalization as defined in section 3.3.3 of [XML 1.0] and is only
* meant for schema languages other than Document Type Definition (DTD).
* -
*
false
* - [required] (default) Do not perform schema normalization on the tree.
*
* -
*
"element-content-whitespace"
* -
*
* true- [required] (default)Keep all whitespaces in the document.
* false- [optional] Discard all
Text nodes that contain whitespaces in element
* content, as described in
* [element content whitespace]. The implementation is expected to use the attribute
* Text.isElementContentWhitespace to determine if a
* Text node should be discarded or not.
*
* "entities"-
*
* -
*
true
* - [required] (default)Keep
EntityReference nodes in the document.
* -
*
false
* - [required] Remove all
EntityReference nodes from the document,
* putting the entity expansions directly in their place. Text
* nodes are normalized, as defined in Node.normalize. Only
* unexpanded entity references are kept in the document.
*
* Note: This parameter does not affect Entity nodes.
* -
*
"error-handler"
* - [required] Contains a
DOMErrorHandler object. If an error is
* encountered in the document, the implementation will call back the
* DOMErrorHandler registered using this parameter. The
* implementation may provide a default DOMErrorHandler object.
* When called, DOMError.relatedData will contain the closest
* node to where the error occurred. If the implementation is unable to
* determine the node where the error occurs,
* DOMError.relatedData will contain the Document
* node. Mutations to the document from within an error handler will result
* in implementation dependent behavior.
* "infoset"-
*
* -
*
true
* - [required]Keep in the document the information defined in the XML Information Set [XML Information Set]
* .This forces the following parameters to
false: "
* validate-if-schema", "entities", "datatype-normalization", "cdata-sections
* ".This forces the following parameters to true: "
* namespace-declarations", "well-formed", "element-content-whitespace", "
* comments", "namespaces".Other parameters are not changed unless
* explicitly specified in the description of the parameters. Note that
* querying this parameter with getParameter returns
* true only if the individual parameters specified above are
* appropriately set.
* false- Setting
infoset to
* false has no effect.
*
* "namespaces"-
*
* -
*
true
* - [required] (default) Perform the namespace processing as defined in .
* false- [optional] Do not perform the namespace processing.
*
* -
*
"namespace-declarations"
* - This parameter has no effect if the
* parameter "namespaces" is set to
false.
*
* true- [required] (default) Include namespace declaration attributes, specified or defaulted from
* the schema, in the document. See also the sections "Declaring Namespaces"
* in [XML Namespaces]
* and [XML Namespaces 1.1]
* .
* false- [required]Discard all namespace declaration attributes. The namespace prefixes (
*
Node.prefix) are retained even if this parameter is set to
* false.
*
* "normalize-characters"-
*
* true- [optional] Fully
* normalized the characters in the document as defined in appendix B of [XML 1.1].
* -
*
false
* - [required] (default)Do not perform character normalization.
*
* "schema-location"- [optional] Represent a
DOMString object containing a list of URIs,
* separated by whitespaces (characters matching the nonterminal
* production S defined in section 2.3 [XML 1.0]), that
* represents the schemas against which validation should occur, i.e. the
* current schema. The types of schemas referenced in this list must match
* the type specified with schema-type, otherwise the behavior
* of an implementation is undefined. The schemas specified using this
* property take precedence to the schema information specified in the
* document itself. For namespace aware schema, if a schema specified using
* this property and a schema specified in the document instance (i.e. using
* the schemaLocation attribute) in a schema document (i.e.
* using schema import mechanisms) share the same
* targetNamespace, the schema specified by the user using this
* property will be used. If two schemas specified using this property share
* the same targetNamespace or have no namespace, the behavior
* is implementation dependent. If no location has been provided, this
* parameter is null.
* Note: The "schema-location" parameter is ignored
* unless the "schema-type" parameter value is set. It is strongly
* recommended that Document.documentURI will be set so that an
* implementation can successfully resolve any external entities referenced.
* -
*
"schema-type"
* - [optional] Represent a
DOMString object containing an absolute URI
* and representing the type of the schema language used to validate a
* document against. Note that no lexical checking is done on the absolute
* URI. If this parameter is not set, a default value may be provided by
* the implementation, based on the schema languages supported and on the
* schema language used at load time. If no value is provided, this
* parameter is null.
* Note: For XML Schema [XML Schema Part 1]
* , applications must use the value
* "http://www.w3.org/2001/XMLSchema". For XML DTD [XML 1.0],
* applications must use the value
* "http://www.w3.org/TR/REC-xml". Other schema languages are
* outside the scope of the W3C and therefore should recommend an absolute
* URI in order to use this method.
* "split-cdata-sections"-
*
* -
*
true
* - [required] (default)Split CDATA sections containing the CDATA section termination marker
* ']]>'. When a CDATA section is split a warning is issued with a
*
DOMError.type equals to
* "cdata-sections-splitted" and
* DOMError.relatedData equals to the first
* CDATASection node in document order resulting from the split.
* -
*
false
* - [required]Signal an error if a
CDATASection contains an
* unrepresentable character.
*
* "validate"-
*
* true- [optional] Require the validation against a schema (i.e. XML schema, DTD, any
* other type or representation of schema) of the document as it is being
* normalized as defined by [XML 1.0]. If
* validation errors are found, or no schema was found, the error handler is
* notified. Schema-normalized values will not be exposed according to the
* schema in used unless the parameter "datatype-normalization" is
*
true. This parameter will reevaluate:
*
* - Attribute nodes with
*
Attr.specified equals to false, as specified in
* the description of the Attr interface;
*
* - The value of the
* attribute
Text.isElementContentWhitespace for all
* Text nodes;
*
* - The value of the attribute
*
Attr.isId for all Attr nodes;
*
* - The attributes
*
Element.schemaTypeInfo and Attr.schemaTypeInfo.
*
*
* Note: "validate-if-schema" and "validate" are mutually
* exclusive, setting one of them to true will set the other
* one to false. Applications should also consider setting the
* parameter "well-formed" to true, which is the default for
* that option, when validating the document.
* false- [required] (default) Do not accomplish schema processing, including the internal subset
* processing. Default attribute values information are kept. Note that
* validation might still happen if "validate-if-schema" is
true
* .
*
* "validate-if-schema"-
*
* true- [optional]Enable validation only if a declaration for the document element can be
* found in a schema (independently of where it is found, i.e. XML schema,
* DTD, or any other type or representation of schema). If validation is
* enabled, this parameter has the same behavior as the parameter "validate"
* set to
true.
* Note: "validate-if-schema" and "validate" are mutually
* exclusive, setting one of them to true will set the other
* one to false.
* false- [required] (default) No schema processing should be performed if the document has a schema,
* including internal subset processing. Default attribute values
* information are kept. Note that validation must still happen if "validate
* " is
true.
*
* "well-formed"-
*
* true- [required] (default) Check if all nodes are XML well formed according to the XML version in
* use in
Document.xmlVersion:
*
* - check if the attribute
*
Node.nodeName contains invalid characters according to its
* node type and generate a DOMError of type
* "wf-invalid-character-in-node-name", with a
* DOMError.SEVERITY_ERROR severity, if necessary;
*
* - check if
* the text content inside
Attr, Element,
* Comment, Text, CDATASection nodes
* for invalid characters and generate a DOMError of type
* "wf-invalid-character", with a
* DOMError.SEVERITY_ERROR severity, if necessary;
*
* - check if
* the data inside
ProcessingInstruction nodes for invalid
* characters and generate a DOMError of type
* "wf-invalid-character", with a
* DOMError.SEVERITY_ERROR severity, if necessary;
*
*
* -
*
false
* - [optional] Do not check for XML well-formedness.
*
*
* The resolution of the system identifiers associated with entities is
* done using Document.documentURI. However, when the feature
* "LS" defined in [DOM Level 3 Load and Save]
* is supported by the DOM implementation, the parameter
* "resource-resolver" can also be used on DOMConfiguration
* objects attached to Document nodes. If this parameter is
* set, Document.normalizeDocument() will invoke the resource
* resolver instead of using Document.documentURI.
*
See also the Document Object Model (DOM) Level 3 Core Specification.
* @since DOM Level 3
*/
public interface DOMConfiguration
{
/**
* Set the value of a parameter.
* @param name The name of the parameter to set.
* @param value The new value or null if the user wishes to
* unset the parameter. While the type of the value parameter is
* defined as DOMUserData, the object type must match the
* type defined by the definition of the parameter. For example, if
* the parameter is "error-handler", the value must be of type
* DOMErrorHandler.
* @exception DOMException
* NOT_FOUND_ERR: Raised when the parameter name is not recognized.
*
NOT_SUPPORTED_ERR: Raised when the parameter name is recognized
* but the requested value cannot be set.
*
TYPE_MISMATCH_ERR: Raised if the value type for this parameter
* name is incompatible with the expected value type.
*/
public void setParameter(String name, Object value) throws DOMException;
/**
* Return the value of a parameter if known.
* @param name The name of the parameter.
* @return The current object associated with the specified parameter or
* null if no object has been associated or if the
* parameter is not supported.
* @exception DOMException
* NOT_FOUND_ERR: Raised when the parameter name is not recognized.
*/
public Object getParameter(String name) throws DOMException;
/**
* Check if setting a parameter to a specific value is supported.
* @param name The name of the parameter to check.
* @param value An object. if null, the returned value is
* true.
* @return true if the parameter could be successfully set
* to the specified value, or false if the parameter is
* not recognized or the requested value is not supported. This does
* not change the current value of the parameter itself.
*/
public boolean canSetParameter(String name, Object value);
/**
* The list of the parameters supported by this
* DOMConfiguration object and for which at least one value
* can be set by the application. Note that this list can also contain
* parameter names defined outside this specification.
*/
public DOMStringList getParameterNames();
}