public class NamespaceSupport extends Object implements NamespaceContext
Modifier and Type | Class and Description |
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protected class |
NamespaceSupport.Prefixes |
Modifier and Type | Field and Description |
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protected int[] |
fContext
Context indexes.
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protected int |
fCurrentContext
The current context.
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protected String[] |
fNamespace
Namespace binding information.
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protected int |
fNamespaceSize
The top of the namespace information array.
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protected String[] |
fPrefixes |
XML_URI, XMLNS_URI
Constructor and Description |
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NamespaceSupport()
Default constructor.
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NamespaceSupport(NamespaceContext context)
Constructs a namespace context object and initializes it with
the prefixes declared in the specified context.
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Modifier and Type | Method and Description |
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boolean |
containsPrefix(String prefix)
Checks whether a binding or unbinding for
the given prefix exists in the context.
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boolean |
declarePrefix(String prefix,
String uri)
Declare a Namespace prefix.
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Enumeration |
getAllPrefixes()
Return an enumeration of all prefixes whose declarations are active
in the current context.
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String |
getDeclaredPrefixAt(int index)
Returns the prefix at the specified index in the current context.
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int |
getDeclaredPrefixCount()
Return a count of locally declared prefixes, including
the default prefix if bound.
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String |
getPrefix(String uri)
Look up a namespace URI and get one of the mapped prefix.
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String |
getURI(String prefix)
Look up a prefix and get the currently-mapped Namespace URI.
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void |
popContext()
Revert to the previous Namespace context.
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void |
pushContext()
Start a new Namespace context.
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void |
reset()
Reset this Namespace support object for reuse.
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protected String[] fNamespace
fNamespaceSize
,
fContext
protected int fNamespaceSize
protected int[] fContext
fNamespaceSize
protected int fCurrentContext
protected String[] fPrefixes
public NamespaceSupport()
public NamespaceSupport(NamespaceContext context)
public void reset()
NamespaceContext
It is necessary to invoke this method before reusing the Namespace support object for a new session.
Note that implementations of this method need to ensure that the declaration of the prefixes "xmlns" and "xml" are available.
reset
in interface NamespaceContext
NamespaceContext.reset()
public void pushContext()
NamespaceContext
A new context should be pushed at the beginning of each XML element: the new context will automatically inherit the declarations of its parent context, but it will also keep track of which declarations were made within this context.
pushContext
in interface NamespaceContext
NamespaceContext.pushContext()
public void popContext()
NamespaceContext
The context should be popped at the end of each XML element. After popping the context, all Namespace prefix mappings that were previously in force are restored.
Users must not attempt to declare additional Namespace prefixes after popping a context, unless you push another context first.
popContext
in interface NamespaceContext
NamespaceContext.popContext()
public boolean declarePrefix(String prefix, String uri)
NamespaceContext
This method declares a prefix in the current Namespace context; the prefix will remain in force until this context is popped, unless it is shadowed in a descendant context.
Note that to declare a default Namespace, use the empty string. The prefixes "xml" and "xmlns" can't be rebound.
Note that you must not declare a prefix after you've pushed and popped another Namespace.
declarePrefix
in interface NamespaceContext
prefix
- The prefix to declare, or null for the empty
string.uri
- The Namespace URI to associate with the prefix.NamespaceContext.declarePrefix(String, String)
public String getURI(String prefix)
NamespaceContext
This method looks up the prefix in the current context. If no mapping is found, this methods will continue lookup in the parent context(s). Use the empty string ("") for the default Namespace.
getURI
in interface NamespaceContext
prefix
- The prefix to look up.NamespaceContext.getURI(String)
public String getPrefix(String uri)
NamespaceContext
This method looks up the namespace URI in the current context. If more than one prefix is currently mapped to the same URI, this method will make an arbitrary selection If no mapping is found, this methods will continue lookup in the parent context(s).
getPrefix
in interface NamespaceContext
uri
- The namespace URI to look up.NamespaceContext.getPrefix(String)
public int getDeclaredPrefixCount()
NamespaceContext
getDeclaredPrefixCount
in interface NamespaceContext
NamespaceContext.getDeclaredPrefixCount()
public String getDeclaredPrefixAt(int index)
NamespaceContext
getDeclaredPrefixAt
in interface NamespaceContext
NamespaceContext.getDeclaredPrefixAt(int)
public Enumeration getAllPrefixes()
NamespaceContext
getAllPrefixes
in interface NamespaceContext
NamespaceContext.getAllPrefixes()
public boolean containsPrefix(String prefix)
prefix
- The prefix to look up.Copyright © 2021 JBoss by Red Hat. All rights reserved.