public interface NamespacePrefixMapper
Modifier and Type | Field and Description |
---|---|
static String |
BOOK_NS |
static String |
BOOK_PREFIX |
static String |
DOT_NS |
static String |
DOT_PREFIX |
static String |
PRINTER_NS |
static String |
PROV_EXT_NS |
static String |
PROV_NS |
static String |
PROV_PREFIX |
static String |
RDF_NS |
static String |
RDF_PREFIX |
static String |
RDFS_NS |
static String |
RDFS_PREFIX |
static String |
SHARED_PROV_TOOLBOX_PREFIX |
static String |
SUMMARY_NS |
static String |
SUMMARY_PREFIX |
static String |
TOOLBOX_NS |
static String |
TOOLBOX_PREFIX |
static String |
XML_NS |
static String |
XSD_NS |
static String |
XSD_PREFIX |
static String |
XSI_NS |
Modifier and Type | Method and Description |
---|---|
String[] |
getPreDeclaredNamespaceUris()
Returns a list of namespace URIs that should be declared
at the root element.
|
String |
getPreferredPrefix(String namespaceUri,
String suggestion,
boolean requirePrefix)
Returns a preferred prefix for the given namespace URI.
|
static final String PROV_EXT_NS
static final String PROV_NS
static final String XSI_NS
static final String XSD_NS
static final String PRINTER_NS
static final String XML_NS
static final String PROV_PREFIX
static final String XSD_PREFIX
static final String RDF_NS
static final String RDF_PREFIX
static final String RDFS_NS
static final String RDFS_PREFIX
static final String BOOK_PREFIX
static final String BOOK_NS
static final String SHARED_PROV_TOOLBOX_PREFIX
static final String TOOLBOX_NS
static final String TOOLBOX_PREFIX
static final String DOT_NS
static final String DOT_PREFIX
static final String SUMMARY_NS
static final String SUMMARY_PREFIX
String getPreferredPrefix(String namespaceUri, String suggestion, boolean requirePrefix)
namespaceUri
- The namespace URI for which the prefix needs to be found.
Never be null. "" is used to denote the default namespace.suggestion
- When the content tree has a suggestion for the prefix
to the given namespaceUri, that suggestion is passed as a
parameter. Typically this value comes from QName.getPrefix()
to show the preference of the content tree. This parameter
may be null, and this parameter may represent an already
occupied prefix.requirePrefix
- If this method is expected to return non-empty prefix.
When this flag is true, it means that the given namespace URI
cannot be set as the default namespace.String[] getPreDeclaredNamespaceUris()
By default, the JAXB RI produces namespace declarations only when they are necessary, only at where they are used. Because of this lack of look-ahead, sometimes the marshaller produces a lot of namespace declarations that look redundant to human eyes. For example,
<xmp> <?xml version="1.0"?> <root> <ns1:child xmlns:ns1="urn:foo"> ... </ns1:child> <ns2:child xmlns:ns2="urn:foo"> ... </ns2:child> <ns3:child xmlns:ns3="urn:foo"> ... </ns3:child> ... </root> </xmp>
If you know in advance that you are going to use a certain set of namespace URIs, you can override this method and have the marshaller declare those namespace URIs at the root element.
For example, by returning new String[]{"urn:foo"}
,
the marshaller will produce:
<xmp> <?xml version="1.0"?> <root xmlns:ns1="urn:foo"> <ns1:child> ... </ns1:child> <ns1:child> ... </ns1:child> <ns1:child> ... </ns1:child> ... </root> </xmp>
To control prefixes assigned to those namespace URIs, use the
getPreferredPrefix(java.lang.String, java.lang.String, boolean)
method.
String
s.
This method can return a length-zero array but not null.
None of the array component can be null. To represent
the empty namespace, use the empty string ""
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