Object
AbstractInternationalString
- All Implemented Interfaces:
CharSequence,Comparable<InternationalString>,Formattable,InternationalString
- Direct Known Subclasses:
DefaultInternationalString,ResourceInternationalString,SimpleInternationalString
public abstract class AbstractInternationalString
extends Object
implements InternationalString, Formattable
Base class for character strings that has been internationalized into several locales.
The
InternationalString interface is used instead of the String class
whenever an attribute needs to be internationalization capable.
The default value (as returned by toString() and other CharSequence methods)
is the string in the current system-wide default locale.
The natural ordering is defined by the value returned by toString().
Substituting a free text by a code list
The ISO standard allows to substitute some character strings in the "free text" domain by aCodeList value. This can be done with:
Types.getCodeTitle(CodeList)for getting theInternationalStringinstance to store in a metadata property.Types.forCodeTitle(CharSequence)for retrieving theCodeListpreviously stored as anInternationalString.
- Since:
- 1.1
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Constructor Summary
ConstructorsModifierConstructorDescriptionprotectedConstructs an international string. -
Method Summary
Modifier and TypeMethodDescriptioncharcharAt(int index) Returns the character of the string in the default locale at the specified index.intcompareTo(InternationalString object) Compares this string with the specified object for order.voidFormats this international string using the given formatter.intlength()Returns the length of the string in the default locale.subSequence(int start, int end) Returns a subsequence of the string in the default locale.Returns this string in the default locale.abstract StringReturns this string in the given locale.Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitMethods inherited from interface CharSequence
chars, codePoints, isEmpty
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Constructor Details
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AbstractInternationalString
protected AbstractInternationalString()Constructs an international string.
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Method Details
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length
public int length()Returns the length of the string in the default locale. This is the length of the string returned bytoString().- Specified by:
lengthin interfaceCharSequence- Returns:
- length of the string in the default locale.
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charAt
Returns the character of the string in the default locale at the specified index. This is a character of the string returned bytoString().- Specified by:
charAtin interfaceCharSequence- Parameters:
index- the index of the character.- Returns:
- the character at the specified index.
- Throws:
IndexOutOfBoundsException- if the specified index is out of bounds.
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subSequence
Returns a subsequence of the string in the default locale. The subsequence is aStringobject starting with the character value at the specified index and ending with the character value at indexend - 1.- Specified by:
subSequencein interfaceCharSequence- Parameters:
start- the start index, inclusive.end- the end index, exclusive.- Returns:
- the specified subsequence.
- Throws:
IndexOutOfBoundsException- ifstartorendis out of range.
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toString
Returns this string in the given locale. If no string is available in the given locale, then some fallback locale is used. The fallback locale is implementation-dependent, and is not necessarily the same than the default locale used by thetoString()method.Handling of
Locale.ROOTargument valueLocale.ROOTcan be given to this method for requesting a "unlocalized" string, typically some programmatic values like enumerations or identifiers. While identifiers often look like English words,Locale.ROOTis not considered synonymous toLocale.ENGLISHbecause the values may differ in the way numbers and dates are formatted (e.g. using the ISO 8601 standard for dates instead of English conventions).Handling of
Thenullargument valueLocale.ROOTconstant is new in Java 6. Some other libraries designed for Java 5 use thenullvalue for "unlocalized" strings. Apache SIS acceptsnullvalue for inter-operability with those libraries. However, the behavior is implementation dependent: some subclasses will takenullas a synonymous of the system default locale, while other subclasses will takenullas a synonymous of the root locale. In order to ensure determinist behavior, client code are encouraged to specify only non-null values.- Specified by:
toStringin interfaceInternationalString- Parameters:
locale- the desired locale for the string to be returned.- Returns:
- the string in the given locale if available, or in an implementation-dependent fallback locale otherwise.
- See Also:
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toString
Returns this string in the default locale. Invoking this method is equivalent to invokingtoString(Locale.getDefault()).All methods from
CharSequenceoperate on this string. This string is also used as the criterion for natural ordering.- Specified by:
toStringin interfaceCharSequence- Specified by:
toStringin interfaceInternationalString- Overrides:
toStringin classObject- Returns:
- the string in the default locale.
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formatTo
Formats this international string using the given formatter. This method appends the string obtained by:toString(formatter.Formatter.locale())- Specified by:
formatToin interfaceFormattable- Parameters:
formatter- the formatter to use for formatting this string.flags- a bitmask ofFormattableFlagsvalues.width- the minimum number of characters, or -1 if none.precision- the maximum number of characters (before expanding to thewidth), or -1 for no restriction.
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compareTo
Compares this string with the specified object for order. This method compares the string in the default locale, as returned bytoString().- Specified by:
compareToin interfaceComparable<InternationalString>- Parameters:
object- the string to compare with this string.- Returns:
- a negative number if this string is before the given string, a positive number if after, or 0 if equals.
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