org.pentaho.reporting.libraries.xmlns.writer

Class DeclaredNamespaces

public final class DeclaredNamespaces extends Object

A immutable namespace collection. Any attempt to modify the declared namespaces creates a new copy of the map.

Author: Thomas Morgner

Constructor Summary
DeclaredNamespaces()
Creates a new namespaces collection.
DeclaredNamespaces(DeclaredNamespaces namespaces)
Creates a new namespaces collection using the given namespaces as initial values.
Method Summary
DeclaredNamespacesadd(HashMap newNamespaces)
Adds all namespaces from the given hashmap into this map.
DeclaredNamespacesadd(AttributeList attributes)
Adds all declared namespaces from the given attribute-list into the namespaces collection.
DeclaredNamespacesadd(String uri, String prefix)
Adds a single namespace definition to the collection.
MapgetNamespaces()
Returns all known namespaces as unmodifiable map.
StringgetPrefix(String uri)
Looksup the prefix for the given URI.
booleanisNamespaceDefined(String uri)
Checks, whether the namespace marked by the given URI is defined in this collection.
booleanisPrefixDefined(String prefix)
Checks whether the given prefix is already defined in the collection.

Constructor Detail

DeclaredNamespaces

public DeclaredNamespaces()
Creates a new namespaces collection.

DeclaredNamespaces

public DeclaredNamespaces(DeclaredNamespaces namespaces)
Creates a new namespaces collection using the given namespaces as initial values.

Parameters: namespaces the namespaces, never null.

Method Detail

add

public DeclaredNamespaces add(HashMap newNamespaces)
Adds all namespaces from the given hashmap into this map. The namespaces map must only contain string keys and string values and must not contain either null-keys or null-values.

Parameters: newNamespaces the namespaces collection.

Returns: the created namespaces object.

add

public DeclaredNamespaces add(AttributeList attributes)
Adds all declared namespaces from the given attribute-list into the namespaces collection.

Parameters: attributes the attribute list containing namespace definitions.

Returns: the new namespaces collection.

add

public DeclaredNamespaces add(String uri, String prefix)
Adds a single namespace definition to the collection.

Parameters: uri the URI of the namespace. prefix the prefix to be used for the namespace.

Returns: the new namespaces collection.

getNamespaces

public Map getNamespaces()
Returns all known namespaces as unmodifiable map.

Returns: the namespaces.

getPrefix

public String getPrefix(String uri)
Looksup the prefix for the given URI. This returns null if the URI is not a declared namespace.

Parameters: uri the URI.

Returns: the prefix for the given URI or null, if the URI is not part of this collection.

isNamespaceDefined

public boolean isNamespaceDefined(String uri)
Checks, whether the namespace marked by the given URI is defined in this collection.

Parameters: uri the URI to be checked.

Returns: true, if the URI is known, false otherwise.

isPrefixDefined

public boolean isPrefixDefined(String prefix)
Checks whether the given prefix is already defined in the collection.

Parameters: prefix the prefix.

Returns: true, if the prefix is already used, false otherwise.