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java.lang.Objectorg.exist.dom.SymbolTable
Maintains a global symbol table shared by a database instance. The symbol
table maps namespace URIs and node names to unique, numeric ids. Internally,
the db does not store node QNames in clear text. Instead, it uses the numeric ids
maintained here.
The global SymbolTable singleton can be retrieved from DBBroker.getSymbols()
.
It is saved into the database file "symbols.dbx".
Constructor Summary | |
SymbolTable(java.io.File file)
|
Method Summary | |
java.lang.String[] |
defaultPrefixList()
Returns a list of default prefixes registered. |
java.lang.String |
getDefaultNamespace(java.lang.String prefix)
Returns a namespace URI for the given prefix if there's a default mapping. |
java.io.File |
getFile()
|
java.lang.String |
getName(short id)
Returns the local name registered for the id or null if the name is not known. |
java.lang.String |
getNamespace(short id)
Returns the namespace URI registered for the id or null if the namespace URI is not known. |
short |
getNSSymbol(java.lang.String ns)
Returns a unique id for the specified namespace URI. |
QName |
getQName(short type,
java.lang.String namespaceURI,
java.lang.String localName,
java.lang.String prefix)
Retrieve a shared QName instance from the temporary pool. |
short |
getSymbol(org.w3c.dom.Attr attr)
Return a unique id for the local node name of the specified attribute. |
short |
getSymbol(org.w3c.dom.Element element)
Return a unique id for the local node name of the specified element. |
short |
getSymbol(java.lang.String name)
Returns a unique id for the specified local name. |
boolean |
hasChanged()
Returns true if the symbol table needs to be saved to persistent storage. |
void |
read(VariableByteInput istream)
Read the symbol table. |
void |
write(VariableByteOutputStream ostream)
Write the symbol table to persistent storage. |
Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public SymbolTable(java.io.File file)
Method Detail |
public QName getQName(short type, java.lang.String namespaceURI, java.lang.String localName, java.lang.String prefix)
namespaceURI
- localName
- prefix
- public short getSymbol(org.w3c.dom.Element element)
element
- public short getSymbol(org.w3c.dom.Attr attr)
attr
- public short getSymbol(java.lang.String name)
name
- public short getNSSymbol(java.lang.String ns)
ns
- public java.lang.String getNamespace(short id)
id
- public boolean hasChanged()
public java.lang.String getName(short id)
id
- public java.lang.String getDefaultNamespace(java.lang.String prefix)
prefix
- public java.lang.String[] defaultPrefixList()
public void write(VariableByteOutputStream ostream) throws java.io.IOException
ostream
-
java.io.IOException
public void read(VariableByteInput istream) throws java.io.IOException
istream
-
java.io.IOException
public java.io.File getFile()
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