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Xerces2 is the next generation of high performance, fully compliant XML parsers in the Apache Xerces family.
This new version of Xerces introduces the Xerces Native Interface (XNI), a complete framework for building
parser components and configurations that is extremely modular and easy to program. The Apache Xerces2 parser is
the reference implementation of XNI but other parser components, configurations, and parsers can be written
using the Xerces Native Interface. For complete design and implementation documents, refer to the XNI Manual.
Xerces2 is a fully conforming XML Schema 1.0 processor. A partial experimental implementation of the XML Schema
1.1 Structures and Datatypes Working Drafts (December 2009) and an experimental implementation of the XML Schema
Definition Language (XSD): Component Designators (SCD) Candidate Recommendation (January 2010) are provided for
evaluation. For more information, refer to the XML Schema page. Xerces2 also provides a complete implementation
of the Document Object Model Level 3 Core and Load/Save W3C Recommendations and provides a complete
implementation of the XML Inclusions (XInclude) W3C Recommendation. It also provides support for OASIS XML
Catalogs v1.1. Xerces2 is able to parse documents written according to the XML 1.1 Recommendation, except that
it does not yet provide an option to enable normalization checking as described in section 2.13 of this
specification. It also handles namespaces according to the XML Namespaces 1.1 Recommendation, and will correctly
serialize XML 1.1 documents if the DOM level 3 load/save APIs are in use.
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.xerces.impl;
import java.util.Enumeration;
import java.util.NoSuchElementException;
/**
* Commonly used constants.
*
* @xerces.internal
*
* @author Andy Clark, IBM
*
* @version $Id: Constants.java 1400688 2012-10-21 17:59:34Z mrglavas $
*/
public final class Constants {
//
// Constants
//
// Schema Types:
public static final String NS_XMLSCHEMA = "http://www.w3.org/2001/XMLSchema".intern();
public static final String NS_DTD = "http://www.w3.org/TR/REC-xml".intern();
// Schema Versions:
public static final String W3C_XML_SCHEMA10_NS_URI = "http://www.w3.org/XML/XMLSchema/v1.0".intern();
// sax features
/** SAX feature prefix ("http://xml.org/sax/features/"). */
public static final String SAX_FEATURE_PREFIX = "http://xml.org/sax/features/";
/** Namespaces feature ("namespaces"). */
public static final String NAMESPACES_FEATURE = "namespaces";
/** Namespace prefixes feature ("namespace-prefixes"). */
public static final String NAMESPACE_PREFIXES_FEATURE = "namespace-prefixes";
/** String interning feature ("string-interning"). */
public static final String STRING_INTERNING_FEATURE = "string-interning";
/** Validation feature ("validation"). */
public static final String VALIDATION_FEATURE = "validation";
/** External general entities feature ("external-general-entities "). */
public static final String EXTERNAL_GENERAL_ENTITIES_FEATURE = "external-general-entities";
/** External parameter entities feature ("external-parameter-entities "). */
public static final String EXTERNAL_PARAMETER_ENTITIES_FEATURE = "external-parameter-entities";
/** Lexical handler parameter entities feature ("lexical-handler/parameter-entities"). */
public static final String LEXICAL_HANDLER_PARAMETER_ENTITIES_FEATURE = "lexical-handler/parameter-entities";
/** Is standalone feature ("is-standalone"). */
public static final String IS_STANDALONE_FEATURE = "is-standalone";
/** Resolve DTD URIs feature ("resolve-dtd-uris"). */
public static final String RESOLVE_DTD_URIS_FEATURE = "resolve-dtd-uris";
/** Use Attributes2 feature ("use-attributes2"). */
public static final String USE_ATTRIBUTES2_FEATURE = "use-attributes2";
/** Use Locator2 feature ("use-locator2"). */
public static final String USE_LOCATOR2_FEATURE = "use-locator2";
/** Use EntityResolver2 feature ("use-entity-resolver2"). */
public static final String USE_ENTITY_RESOLVER2_FEATURE = "use-entity-resolver2";
/** Unicode normalization checking feature ("unicode-normalization-checking"). */
public static final String UNICODE_NORMALIZATION_CHECKING_FEATURE = "unicode-normalization-checking";
/** xmlns URIs feature ("xmlns-uris"). */
public static final String XMLNS_URIS_FEATURE = "xmlns-uris";
/** XML 1.1 feature ("xml-1.1"). */
public static final String XML_11_FEATURE = "xml-1.1";
/** Allow unparsed entity and notation declaration events to be sent after the end DTD event ("allow-dtd-events-after-endDTD") */
public static final String ALLOW_DTD_EVENTS_AFTER_ENDDTD_FEATURE = "allow-dtd-events-after-endDTD";
// sax properties
/** SAX property prefix ("http://xml.org/sax/properties/"). */
public static final String SAX_PROPERTY_PREFIX = "http://xml.org/sax/properties/";
/** Declaration handler property ("declaration-handler"). */
public static final String DECLARATION_HANDLER_PROPERTY = "declaration-handler";
/** Lexical handler property ("lexical-handler"). */
public static final String LEXICAL_HANDLER_PROPERTY = "lexical-handler";
/** DOM node property ("dom-node"). */
public static final String DOM_NODE_PROPERTY = "dom-node";
/** XML string property ("xml-string"). */
public static final String XML_STRING_PROPERTY = "xml-string";
/** Document XML version property ("document-xml-version"). */
public static final String DOCUMENT_XML_VERSION_PROPERTY = "document-xml-version";
//
// JAXP properties
//
/** JAXP property prefix ("http://java.sun.com/xml/jaxp/properties/"). */
public static final String JAXP_PROPERTY_PREFIX =
"http://java.sun.com/xml/jaxp/properties/";
/** JAXP schemaSource property: when used internally may include DTD sources (DOM) */
public static final String SCHEMA_SOURCE = "schemaSource";
/** JAXP schemaSource language: when used internally may include DTD namespace (DOM) */
public static final String SCHEMA_LANGUAGE = "schemaLanguage";
//
// DOM features
//
/** Comments feature ("include-comments"). */
public static final String INCLUDE_COMMENTS_FEATURE = "include-comments";
/** Create cdata nodes feature ("create-cdata-nodes"). */
public static final String CREATE_CDATA_NODES_FEATURE = "create-cdata-nodes";
/** Feature id: load as infoset. */
public static final String LOAD_AS_INFOSET = "load-as-infoset";
//
// Constants: DOM Level 3 feature ids
//
public static final String DOM_CANONICAL_FORM = "canonical-form";
public static final String DOM_CDATA_SECTIONS ="cdata-sections";
public static final String DOM_COMMENTS = "comments";
// REVISIT: this feature seems to have no effect for Xerces
public static final String DOM_CHARSET_OVERRIDES_XML_ENCODING =
"charset-overrides-xml-encoding";
public static final String DOM_DATATYPE_NORMALIZATION = "datatype-normalization";
public static final String DOM_ENTITIES = "entities";
public static final String DOM_INFOSET = "infoset";
public static final String DOM_NAMESPACES = "namespaces";
public static final String DOM_NAMESPACE_DECLARATIONS = "namespace-declarations";
public static final String DOM_SUPPORTED_MEDIATYPES_ONLY =
"supported-media-types-only";
public static final String DOM_VALIDATE_IF_SCHEMA = "validate-if-schema";
public static final String DOM_VALIDATE = "validate";
public static final String DOM_ELEMENT_CONTENT_WHITESPACE =
"element-content-whitespace";
// DOM Level 3 features defined in Core:
public static final String DOM_DISCARD_DEFAULT_CONTENT = "discard-default-content";
public static final String DOM_NORMALIZE_CHARACTERS = "normalize-characters";
public static final String DOM_CHECK_CHAR_NORMALIZATION = "check-character-normalization";
public static final String DOM_WELLFORMED = "well-formed";
public static final String DOM_SPLIT_CDATA = "split-cdata-sections";
// Load and Save
public static final String DOM_FORMAT_PRETTY_PRINT = "format-pretty-print";
public static final String DOM_XMLDECL = "xml-declaration";
public static final String DOM_UNKNOWNCHARS = "unknown-characters";
public static final String DOM_CERTIFIED = "certified";
public static final String DOM_DISALLOW_DOCTYPE = "disallow-doctype";
public static final String DOM_IGNORE_UNKNOWN_CHARACTER_DENORMALIZATIONS = "ignore-unknown-character-denormalizations";
// DOM Properties
public static final String DOM_RESOURCE_RESOLVER = "resource-resolver";
public static final String DOM_ERROR_HANDLER = "error-handler";
public static final String DOM_SCHEMA_TYPE = "schema-type";
public static final String DOM_SCHEMA_LOCATION = "schema-location";
// XSModel
public static final String DOM_PSVI = "psvi";
// xerces features
/** Xerces features prefix ("http://apache.org/xml/features/"). */
public static final String XERCES_FEATURE_PREFIX = "http://apache.org/xml/features/";
/** Schema validation feature ("validation/schema"). */
public static final String SCHEMA_VALIDATION_FEATURE = "validation/schema";
/** Expose schema normalized values */
public static final String SCHEMA_NORMALIZED_VALUE = "validation/schema/normalized-value";
/** Send schema default value via characters() */
public static final String SCHEMA_ELEMENT_DEFAULT = "validation/schema/element-default";
/** Schema full constraint checking ("validation/schema-full-checking"). */
public static final String SCHEMA_FULL_CHECKING = "validation/schema-full-checking";
/** Augment Post-Schema-Validation-Infoset */
public static final String SCHEMA_AUGMENT_PSVI = "validation/schema/augment-psvi";
/** Dynamic validation feature ("validation/dynamic"). */
public static final String DYNAMIC_VALIDATION_FEATURE = "validation/dynamic";
/** Warn on duplicate attribute declaration feature ("validation/warn-on-duplicate-attdef"). */
public static final String WARN_ON_DUPLICATE_ATTDEF_FEATURE = "validation/warn-on-duplicate-attdef";
/** Warn on undeclared element feature ("validation/warn-on-undeclared-elemdef"). */
public static final String WARN_ON_UNDECLARED_ELEMDEF_FEATURE = "validation/warn-on-undeclared-elemdef";
/** Warn on duplicate entity declaration feature ("warn-on-duplicate-entitydef"). */
public static final String WARN_ON_DUPLICATE_ENTITYDEF_FEATURE = "warn-on-duplicate-entitydef";
/** Allow Java encoding names feature ("allow-java-encodings"). */
public static final String ALLOW_JAVA_ENCODINGS_FEATURE = "allow-java-encodings";
/** Disallow DOCTYPE declaration feature ("disallow-doctype-decl"). */
public static final String DISALLOW_DOCTYPE_DECL_FEATURE = "disallow-doctype-decl";
/** Continue after fatal error feature ("continue-after-fatal-error"). */
public static final String CONTINUE_AFTER_FATAL_ERROR_FEATURE = "continue-after-fatal-error";
/** Load dtd grammar when nonvalidating feature ("nonvalidating/load-dtd-grammar"). */
public static final String LOAD_DTD_GRAMMAR_FEATURE = "nonvalidating/load-dtd-grammar";
/** Load external dtd when nonvalidating feature ("nonvalidating/load-external-dtd"). */
public static final String LOAD_EXTERNAL_DTD_FEATURE = "nonvalidating/load-external-dtd";
/** Defer node expansion feature ("dom/defer-node-expansion"). */
public static final String DEFER_NODE_EXPANSION_FEATURE = "dom/defer-node-expansion";
/** Create entity reference nodes feature ("dom/create-entity-ref-nodes"). */
public static final String CREATE_ENTITY_REF_NODES_FEATURE = "dom/create-entity-ref-nodes";
/** Include ignorable whitespace feature ("dom/include-ignorable-whitespace"). */
public static final String INCLUDE_IGNORABLE_WHITESPACE = "dom/include-ignorable-whitespace";
/** Default attribute values feature ("validation/default-attribute-values"). */
public static final String DEFAULT_ATTRIBUTE_VALUES_FEATURE = "validation/default-attribute-values";
/** Validate content models feature ("validation/validate-content-models"). */
public static final String VALIDATE_CONTENT_MODELS_FEATURE = "validation/validate-content-models";
/** Validate datatypes feature ("validation/validate-datatypes"). */
public static final String VALIDATE_DATATYPES_FEATURE = "validation/validate-datatypes";
/** Balance syntax trees feature ("validation/balance-syntax-trees"). */
public static final String BALANCE_SYNTAX_TREES = "validation/balance-syntax-trees";
/** Notify character references feature (scanner/notify-char-refs"). */
public static final String NOTIFY_CHAR_REFS_FEATURE = "scanner/notify-char-refs";
/** Notify built-in (&, etc.) references feature (scanner/notify-builtin-refs"). */
public static final String NOTIFY_BUILTIN_REFS_FEATURE = "scanner/notify-builtin-refs";
/** Standard URI conformant feature ("standard-uri-conformant"). */
public static final String STANDARD_URI_CONFORMANT_FEATURE = "standard-uri-conformant";
/** Generate synthetic annotations feature ("generate-synthetic-annotations"). */
public static final String GENERATE_SYNTHETIC_ANNOTATIONS_FEATURE = "generate-synthetic-annotations";
/** Validate annotations feature ("validate-annotations"). */
public static final String VALIDATE_ANNOTATIONS_FEATURE = "validate-annotations";
/** Honour all schemaLocations feature ("honour-all-schemaLocations"). */
public static final String HONOUR_ALL_SCHEMALOCATIONS_FEATURE = "honour-all-schemaLocations";
/** Namespace growth feature ("namespace-growth"). */
public static final String NAMESPACE_GROWTH_FEATURE = "namespace-growth";
/** Tolerate duplicates feature ("internal/tolerate-duplicates"). */
public static final String TOLERATE_DUPLICATES_FEATURE = "internal/tolerate-duplicates";
/** String interned feature ("internal/strings-interned"). */
public static final String STRINGS_INTERNED_FEATURE = "internal/strings-interned";
/** XInclude processing feature ("xinclude"). */
public static final String XINCLUDE_FEATURE = "xinclude";
/** XInclude fixup base URIs feature ("xinclude/fixup-base-uris"). */
public static final String XINCLUDE_FIXUP_BASE_URIS_FEATURE = "xinclude/fixup-base-uris";
/** XInclude fixup language feature ("xinclude/fixup-language"). */
public static final String XINCLUDE_FIXUP_LANGUAGE_FEATURE = "xinclude/fixup-language";
/**
* Feature to ignore xsi:type attributes on elements during validation,
* until a global element declaration is found. ("validation/schema/ignore-xsi-type-until-elemdecl")
* If this feature is on when validating a document, then beginning at the validation root
* element, xsi:type attributes are ignored until a global element declaration is
* found for an element. Once a global element declaration has been found, xsi:type
* attributes will start being processed for the sub-tree beginning at the element for
* which the declaration was found.
*
* Suppose an element A has two element children, B and C.
*
* If a global element declaration is found for A, xsi:type attributes on A, B and C,
* and all of B and C's descendents, will be processed.
*
* If no global element declaration is found for A or B, but one is found for C,
* then xsi:type attributes will be ignored on A and B (and any descendents of B,
* until a global element declaration is found), but xsi:type attributes will be
* processed for C and all of C's descendents.
*
* Once xsi:type attributes stop being ignored for a subtree, they do not start
* being ignored again, even if more elements are encountered for which no global
* element declaration can be found.
*/
public static final String IGNORE_XSI_TYPE_FEATURE = "validation/schema/ignore-xsi-type-until-elemdecl";
/** Perform checking of ID/IDREFs ("validation/id-idref-checking") */
public static final String ID_IDREF_CHECKING_FEATURE = "validation/id-idref-checking";
/** Feature to ignore errors caused by identity constraints ("validation/identity-constraint-checking") */
public static final String IDC_CHECKING_FEATURE = "validation/identity-constraint-checking";
/** Feature to ignore errors caused by unparsed entities ("validation/unparsed-entity-checking") */
public static final String UNPARSED_ENTITY_CHECKING_FEATURE = "validation/unparsed-entity-checking";
/**
* Internal feature. When set to true the schema validator will only use
* schema components from the grammar pool provided.
*/
public static final String USE_GRAMMAR_POOL_ONLY_FEATURE = "internal/validation/schema/use-grammar-pool-only";
/** Internal performance related feature:
* false - the parser settings (features/properties) have not changed between 2 parses
* true - the parser settings have changed between 2 parses
* NOTE: this feature should only be set by the parser configuration.
*/
public static final String PARSER_SETTINGS = "internal/parser-settings";
// xerces properties
/** Xerces properties prefix ("http://apache.org/xml/properties/"). */
public static final String XERCES_PROPERTY_PREFIX = "http://apache.org/xml/properties/";
/** Current element node property ("dom/current-element-node"). */
public static final String CURRENT_ELEMENT_NODE_PROPERTY = "dom/current-element-node";
/** Document class name property ("dom/document-class-name"). */
public static final String DOCUMENT_CLASS_NAME_PROPERTY = "dom/document-class-name";
/** Symbol table property ("internal/symbol-table"). */
public static final String SYMBOL_TABLE_PROPERTY = "internal/symbol-table";
/** Error reporter property ("internal/error-reporter"). */
public static final String ERROR_REPORTER_PROPERTY = "internal/error-reporter";
/** Error handler property ("internal/error-handler"). */
public static final String ERROR_HANDLER_PROPERTY = "internal/error-handler";
/** XInclude handler property ("internal/xinclude-handler"). */
public static final String XINCLUDE_HANDLER_PROPERTY = "internal/xinclude-handler";
/** XPointer handler property ("internal/xpointer-handler"). */
public static final String XPOINTER_HANDLER_PROPERTY = "internal/xpointer-handler";
/** Entity manager property ("internal/entity-manager"). */
public static final String ENTITY_MANAGER_PROPERTY = "internal/entity-manager";
/** Input buffer size property ("input-buffer-size"). */
public static final String BUFFER_SIZE_PROPERTY = "input-buffer-size";
/** Security manager property ("security-manager"). */
public static final String SECURITY_MANAGER_PROPERTY = "security-manager";
/** Locale property ("locale"). */
public static final String LOCALE_PROPERTY = "locale";
/** Entity resolver property ("internal/entity-resolver"). */
public static final String ENTITY_RESOLVER_PROPERTY = "internal/entity-resolver";
/** Grammar pool property ("internal/grammar-pool"). */
public static final String XMLGRAMMAR_POOL_PROPERTY = "internal/grammar-pool";
/** Datatype validator factory ("internal/datatype-validator-factory"). */
public static final String DATATYPE_VALIDATOR_FACTORY_PROPERTY = "internal/datatype-validator-factory";
/** Document scanner property ("internal/document-scanner"). */
public static final String DOCUMENT_SCANNER_PROPERTY = "internal/document-scanner";
/** DTD scanner property ("internal/dtd-scanner"). */
public static final String DTD_SCANNER_PROPERTY = "internal/dtd-scanner";
/** DTD processor property ("internal/dtd-processor"). */
public static final String DTD_PROCESSOR_PROPERTY = "internal/dtd-processor";
/** Validator property ("internal/validator"). */
public static final String VALIDATOR_PROPERTY = "internal/validator";
/** Validator property ("internal/validator/dtd"). */
public static final String DTD_VALIDATOR_PROPERTY = "internal/validator/dtd";
/** Validator property ("internal/validator/schema"). */
public static final String SCHEMA_VALIDATOR_PROPERTY = "internal/validator/schema";
/** No namespace schema location property ("schema/external-schemaLocation"). */
public static final String SCHEMA_LOCATION = "schema/external-schemaLocation";
/** Schema location property ("schema/external-noNamespaceSchemaLocation"). */
public static final String SCHEMA_NONS_LOCATION = "schema/external-noNamespaceSchemaLocation";
/** Namespace binder property ("internal/namespace-binder"). */
public static final String NAMESPACE_BINDER_PROPERTY = "internal/namespace-binder";
/** Namespace context property ("internal/namespace-context"). */
public static final String NAMESPACE_CONTEXT_PROPERTY = "internal/namespace-context";
/** Validation manager property ("internal/validation-manager"). */
public static final String VALIDATION_MANAGER_PROPERTY = "internal/validation-manager";
/** Schema type for the root element in a document ("validation/schema/root-type-definition"). */
public static final String ROOT_TYPE_DEFINITION_PROPERTY = "validation/schema/root-type-definition";
/** Schema element declaration for the root element in a document ("validation/schema/root-element-declaration"). */
public static final String ROOT_ELEMENT_DECLARATION_PROPERTY = "validation/schema/root-element-declaration";
/** Schema element declaration for the root element in a document ("internal/validation/schema/dv-factory"). */
public static final String SCHEMA_DV_FACTORY_PROPERTY = "internal/validation/schema/dv-factory";
// general constants
/** Element PSVI is stored in augmentations using string "ELEMENT_PSVI" */
public final static String ELEMENT_PSVI = "ELEMENT_PSVI";
/** Attribute PSVI is stored in augmentations using string "ATTRIBUTE_PSVI" */
public final static String ATTRIBUTE_PSVI = "ATTRIBUTE_PSVI";
/**
* Boolean indicating whether an attribute is declared in the DTD is stored
* in augmentations using the string "ATTRIBUTE_DECLARED". The absence of this
* augmentation indicates that the attribute was not declared in the DTD.
*/
public final static String ATTRIBUTE_DECLARED = "ATTRIBUTE_DECLARED";
/**
* Boolean indicating whether an entity referenced in the document has
* not been read is stored in augmentations using the string "ENTITY_SKIPPED".
* The absence of this augmentation indicates that the entity had a
* declaration and was expanded.
*/
public final static String ENTITY_SKIPPED = "ENTITY_SKIPPED";
/**
* Boolean indicating whether a character is a probable white space
* character (ch <= 0x20) that was the replacement text of a character
* reference is stored in augmentations using the string "CHAR_REF_PROBABLE_WS".
* The absence of this augmentation indicates that the character is not
* probable white space and/or was not included from a character reference.
*/
public final static String CHAR_REF_PROBABLE_WS = "CHAR_REF_PROBABLE_WS";
// XML version constants
public final static short XML_VERSION_ERROR = -1;
public final static short XML_VERSION_1_0 = 1;
public final static short XML_VERSION_1_1 = 2;
// Constant to enable Schema 1.1 support
public final static boolean SCHEMA_1_1_SUPPORT = false;
public final static short SCHEMA_VERSION_1_0 = 1;
public final static short SCHEMA_VERSION_1_0_EXTENDED = 2;
// private
/** SAX features. */
private static final String[] fgSAXFeatures = {
NAMESPACES_FEATURE,
NAMESPACE_PREFIXES_FEATURE,
STRING_INTERNING_FEATURE,
VALIDATION_FEATURE,
EXTERNAL_GENERAL_ENTITIES_FEATURE,
EXTERNAL_PARAMETER_ENTITIES_FEATURE,
};
/** SAX properties. */
private static final String[] fgSAXProperties = {
DECLARATION_HANDLER_PROPERTY,
LEXICAL_HANDLER_PROPERTY,
DOM_NODE_PROPERTY,
XML_STRING_PROPERTY,
};
/** Xerces features. */
private static final String[] fgXercesFeatures = {
SCHEMA_VALIDATION_FEATURE,
SCHEMA_FULL_CHECKING,
DYNAMIC_VALIDATION_FEATURE,
WARN_ON_DUPLICATE_ATTDEF_FEATURE,
WARN_ON_UNDECLARED_ELEMDEF_FEATURE,
ALLOW_JAVA_ENCODINGS_FEATURE,
CONTINUE_AFTER_FATAL_ERROR_FEATURE,
LOAD_DTD_GRAMMAR_FEATURE,
LOAD_EXTERNAL_DTD_FEATURE,
//DEFER_NODE_EXPANSION_FEATURE,
CREATE_ENTITY_REF_NODES_FEATURE,
INCLUDE_IGNORABLE_WHITESPACE,
//GRAMMAR_ACCESS_FEATURE,
DEFAULT_ATTRIBUTE_VALUES_FEATURE,
VALIDATE_CONTENT_MODELS_FEATURE,
VALIDATE_DATATYPES_FEATURE,
BALANCE_SYNTAX_TREES,
NOTIFY_CHAR_REFS_FEATURE,
NOTIFY_BUILTIN_REFS_FEATURE,
DISALLOW_DOCTYPE_DECL_FEATURE,
STANDARD_URI_CONFORMANT_FEATURE,
GENERATE_SYNTHETIC_ANNOTATIONS_FEATURE,
VALIDATE_ANNOTATIONS_FEATURE,
HONOUR_ALL_SCHEMALOCATIONS_FEATURE,
XINCLUDE_FEATURE,
XINCLUDE_FIXUP_BASE_URIS_FEATURE,
XINCLUDE_FIXUP_LANGUAGE_FEATURE,
IGNORE_XSI_TYPE_FEATURE,
ID_IDREF_CHECKING_FEATURE,
IDC_CHECKING_FEATURE,
UNPARSED_ENTITY_CHECKING_FEATURE,
NAMESPACE_GROWTH_FEATURE,
TOLERATE_DUPLICATES_FEATURE,
STRINGS_INTERNED_FEATURE,
};
/** Xerces properties. */
private static final String[] fgXercesProperties = {
CURRENT_ELEMENT_NODE_PROPERTY,
DOCUMENT_CLASS_NAME_PROPERTY,
SYMBOL_TABLE_PROPERTY,
ERROR_HANDLER_PROPERTY,
ERROR_REPORTER_PROPERTY,
ENTITY_MANAGER_PROPERTY,
ENTITY_RESOLVER_PROPERTY,
XMLGRAMMAR_POOL_PROPERTY,
DATATYPE_VALIDATOR_FACTORY_PROPERTY,
DOCUMENT_SCANNER_PROPERTY,
DTD_SCANNER_PROPERTY,
VALIDATOR_PROPERTY,
SCHEMA_LOCATION,
SCHEMA_NONS_LOCATION,
VALIDATION_MANAGER_PROPERTY,
BUFFER_SIZE_PROPERTY,
SECURITY_MANAGER_PROPERTY,
LOCALE_PROPERTY,
ROOT_TYPE_DEFINITION_PROPERTY,
ROOT_ELEMENT_DECLARATION_PROPERTY,
SCHEMA_DV_FACTORY_PROPERTY,
};
/** Empty enumeration. */
private static final Enumeration fgEmptyEnumeration = new ArrayEnumeration(new Object[] {});
//
// Constructors
//
/** This class cannot be instantiated. */
private Constants() {}
//
// Public methods
//
// sax
/** Returns an enumeration of the SAX features. */
public static Enumeration getSAXFeatures() {
return fgSAXFeatures.length > 0
? new ArrayEnumeration(fgSAXFeatures) : fgEmptyEnumeration;
} // getSAXFeatures():Enumeration
/** Returns an enumeration of the SAX properties. */
public static Enumeration getSAXProperties() {
return fgSAXProperties.length > 0
? new ArrayEnumeration(fgSAXProperties) : fgEmptyEnumeration;
} // getSAXProperties():Enumeration
// xerces
/** Returns an enumeration of the Xerces features. */
public static Enumeration getXercesFeatures() {
return fgXercesFeatures.length > 0
? new ArrayEnumeration(fgXercesFeatures) : fgEmptyEnumeration;
} // getXercesFeatures():Enumeration
/** Returns an enumeration of the Xerces properties. */
public static Enumeration getXercesProperties() {
return fgXercesProperties.length > 0
? new ArrayEnumeration(fgXercesProperties) : fgEmptyEnumeration;
} // getXercesProperties():Enumeration
//
// Classes
//
/**
* An array enumeration.
*
* @author Andy Clark, IBM
*/
static class ArrayEnumeration
implements Enumeration {
//
// Data
//
/** Array. */
private Object[] array;
/** Index. */
private int index;
//
// Constructors
//
/** Constructs an array enumeration. */
public ArrayEnumeration(Object[] array) {
this.array = array;
} // (Object[])
//
// Enumeration methods
//
/**
* Tests if this enumeration contains more elements.
*
* @return true if this enumeration contains more elements;
* false otherwise.
* @since JDK1.0
*/
public boolean hasMoreElements() {
return index < array.length;
} // hasMoreElement():boolean
/**
* Returns the next element of this enumeration.
*
* @return the next element of this enumeration.
* @exception NoSuchElementException if no more elements exist.
* @since JDK1.0
*/
public Object nextElement() {
if (index < array.length) {
return array[index++];
}
throw new NoSuchElementException();
} // nextElement():Object
} // class ArrayEnumeration
//
// MAIN
//
/** Prints all of the constants to standard output. */
public static void main(String[] argv) {
print("SAX features:", SAX_FEATURE_PREFIX, fgSAXFeatures);
print("SAX properties:", SAX_PROPERTY_PREFIX, fgSAXProperties);
print("Xerces features:", XERCES_FEATURE_PREFIX, fgXercesFeatures);
print("Xerces properties:", XERCES_PROPERTY_PREFIX, fgXercesProperties);
} // main(String[])
/** Prints a list of features/properties. */
private static void print(String header, String prefix, Object[] array) {
System.out.print(header);
if (array.length > 0) {
System.out.println();
for (int i = 0; i < array.length; i++) {
System.out.print(" ");
System.out.print(prefix);
System.out.println(array[i]);
}
}
else {
System.out.println(" none.");
}
} // print(String,String,Object[])
} // class Constants