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JavaTM 2 Platform Std. Ed. v1.3.1 |
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SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--javax.naming.CompositeName
This class represents a composite name -- a sequence of component names spanning multiple namespaces. Each component is a string name from the namespace of a naming system. If the component comes from a hierarchical namespace, that component can be further parsed into its atomic parts by using the CompoundName class.
The components of a composite name are numbered. The indexes of a composite name with N components range from 0 up to, but not including, N. This range may be written as [0,N). The most significant component is at index 0. An empty composite name has no components.
When two composite names are compared, the case of the characters is significant.
A leading component separator (the composite name string begins with a separator) denotes a leading empty component (a component consisting of an empty string). A trailing component separator (the composite name string ends with a separator) denotes a trailing empty component. Adjacent component separators denote an empty component.
String Name | CompositeName |
---|---|
"" | {} (the empty name == new CompositeName("") == new CompositeName()) |
"x" | {"x"} |
"x/y" | {"x", "y"} |
"x/" | {"x", ""} |
"/x" | {"", "x"} |
"/" | {""} |
"//" | {"", ""} |
"/x/" | {"", "x", ""} |
"x//y" | {"x", "", "y"} |
String Names | CompositeNames |
---|---|
"x/y" + "/" = x/y/ | {"x", "y"} + {""} = {"x", "y", ""} |
"" + "x" = "x" | {} + {"x"} = {"x"} |
"/" + "x" = "/x" | {""} + {"x"} = {"", "x"} |
"x" + "" + "" = "x" | {"x"} + {} + {} = {"x"} |
Constructor Summary | |
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CompositeName()
Constructs a new empty composite name. |
protected |
CompositeName(Enumeration comps)
Constructs a new composite name instance using the components specified by 'comps'. |
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CompositeName(String n)
Constructs a new composite name instance by parsing the string n using the composite name syntax (left-to-right, slash separated). |
Method Summary | |
Name |
add(int posn,
String comp)
Adds a single component at a specified position within this composite name. |
Name |
add(String comp)
Adds a single component to the end of this composite name. |
Name |
addAll(int posn,
Name n)
Adds the components of a composite name -- in order -- at a specified position within this composite name. |
Name |
addAll(Name suffix)
Adds the components of a composite name -- in order -- to the end of this composite name. |
Object |
clone()
Generates a copy of this composite name. |
int |
compareTo(Object obj)
Compares this CompositeName with the specified Object for order. |
boolean |
endsWith(Name n)
Determines whether a composite name is a suffix of this composite name. |
boolean |
equals(Object obj)
Determines whether two composite names are equal. |
String |
get(int posn)
Retrieves a component of this composite name. |
Enumeration |
getAll()
Retrieves the components of this composite name as an enumeration of strings. |
Name |
getPrefix(int posn)
Creates a composite name whose components consist of a prefix of the components in this composite name. |
Name |
getSuffix(int posn)
Creates a composite name whose components consist of a suffix of the components in this composite name. |
int |
hashCode()
Computes the hash code of this composite name. |
boolean |
isEmpty()
Determines whether this composite name is empty. |
Object |
remove(int posn)
Deletes a component from this composite name. |
int |
size()
Retrieves the number of components in this composite name. |
boolean |
startsWith(Name n)
Determines whether a composite name is a prefix of this composite name. |
String |
toString()
Generates the string representation of this composite name. |
Methods inherited from class java.lang.Object |
finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
protected CompositeName(Enumeration comps)
comps
- A non-null enumeration containing the components for the new
composite name. Each element is of class String.
The enumeration will be consumed to extract its
elements.public CompositeName(String n) throws InvalidNameException
n
- The non-null string to parse.InvalidNameException
- If n has invalid composite name syntax.public CompositeName()
isEmpty()
is invoked on it.Method Detail |
public String toString()
toString
in class Object
public boolean equals(Object obj)
equals
in class Object
obj
- The possibly null object to compare against.hashCode()
public int hashCode()
hashCode
in class Object
equals(java.lang.Object)
public int compareTo(Object obj)
If obj is null or not an instance of CompositeName, ClassCastException is thrown.
See equals() for what it means for two composite names to be equal. If two composite names are equal, 0 is returned.
Ordering of composite names follows the lexicographical rules for string comparison, with the extension that this applies to all the components in the composite name. The effect is as if all the components were lined up in their specified ordered and the lexicographical rules applied over the two line-ups. If this composite name is "lexicographically" lesser than obj, a negative number is returned. If this composite name is "lexicographically" greater than obj, a positive number is returned.
compareTo
in interface Name
obj
- The non-null object to compare against.ClassCastException
- if obj is not a CompositeName.public Object clone()
clone
in interface Name
clone
in class Object
public int size()
size
in interface Name
public boolean isEmpty()
isEmpty
in interface Name
public Enumeration getAll()
getAll
in interface Name
public String get(int posn)
get
in interface Name
posn
- The 0-based index of the component to retrieve.
Must be in the range [0,size()).ArrayIndexOutOfBoundsException
- if posn is outside the
specified range.public Name getPrefix(int posn)
getPrefix
in interface Name
posn
- The 0-based index of the component at which to stop.
Must be in the range [0,size()].ArrayIndexOutOfBoundsException
- If posn is outside the specified range.public Name getSuffix(int posn)
getSuffix
in interface Name
posn
- The 0-based index of the component at which to start.
Must be in the range [0,size()].ArrayIndexOutOfBoundsException
- If posn is outside the specified range.public boolean startsWith(Name n)
startsWith
in interface Name
n
- The possibly null name to check.public boolean endsWith(Name n)
endsWith
in interface Name
n
- The possibly null name to check.public Name addAll(Name suffix) throws InvalidNameException
addAll
in interface Name
suffix
- The non-null components to add.InvalidNameException
- If suffix is not a composite name.public Name addAll(int posn, Name n) throws InvalidNameException
addAll
in interface Name
n
- The non-null components to add.posn
- The index in this name at which to add the new
components. Must be in the range [0,size()].InvalidNameException
- If n is not a composite name.ArrayIndexOutOfBoundsException
- If posn is outside the specified range.public Name add(String comp) throws InvalidNameException
add
in interface Name
comp
- The non-null component to add.InvalidNameException
- If adding comp at end of the name
would violate the name's syntax.public Name add(int posn, String comp) throws InvalidNameException
add
in interface Name
comp
- The non-null component to add.posn
- The index at which to add the new component.
Must be in the range [0,size()].ArrayIndexOutOfBoundsException
- If posn is outside the specified range.InvalidNameException
- If adding comp at the specified position
would violate the name's syntax.public Object remove(int posn) throws InvalidNameException
remove
in interface Name
posn
- The index of the component to delete.
Must be in the range [0,size()).ArrayIndexOutOfBoundsException
- If posn is outside the specified range (includes case where
composite name is empty).InvalidNameException
- If deleting the component
would violate the name's syntax.
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JavaTM 2 Platform Std. Ed. v1.3.1 |
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