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package javax.print.attribute;
import java.io.Serial;
import java.io.Serializable;
import java.util.Locale;
Class TextSyntax is an abstract base class providing the common implementation of all attributes whose value is a string. The text attribute includes a locale to indicate the natural language. Thus, a text attribute always represents a localized string. Once constructed, a text attribute's value is immutable. Author: David Mendenhall, Alan Kaminsky
/**
* Class {@code TextSyntax} is an abstract base class providing the common
* implementation of all attributes whose value is a string. The text attribute
* includes a locale to indicate the natural language. Thus, a text attribute
* always represents a localized string. Once constructed, a text attribute's
* value is immutable.
*
* @author David Mendenhall
* @author Alan Kaminsky
*/
public abstract class TextSyntax implements Serializable, Cloneable {
Use serialVersionUID from JDK 1.4 for interoperability.
/**
* Use serialVersionUID from JDK 1.4 for interoperability.
*/
@Serial
private static final long serialVersionUID = -8130648736378144102L;
String value of this text attribute.
@serial
/**
* String value of this text attribute.
*
* @serial
*/
private String value;
Locale of this text attribute.
@serial
/**
* Locale of this text attribute.
*
* @serial
*/
private Locale locale;
Constructs a TextAttribute with the specified string and locale. Params: - value – text string
- locale – natural language of the text string.
null is interpreted to mean the default locale for as returned by Locale.getDefault()
Throws: - NullPointerException – if
value is null
/**
* Constructs a {@code TextAttribute} with the specified string and locale.
*
* @param value text string
* @param locale natural language of the text string. {@code null} is
* interpreted to mean the default locale for as returned by
* {@code Locale.getDefault()}
* @throws NullPointerException if {@code value} is {@code null}
*/
protected TextSyntax(String value, Locale locale) {
this.value = verify (value);
this.locale = verify (locale);
}
private static String verify(String value) {
if (value == null) {
throw new NullPointerException(" value is null");
}
return value;
}
private static Locale verify(Locale locale) {
if (locale == null) {
return Locale.getDefault();
}
return locale;
}
Returns this text attribute's text string.
Returns: the text string
/**
* Returns this text attribute's text string.
*
* @return the text string
*/
public String getValue() {
return value;
}
Returns this text attribute's text string's natural language (locale).
Returns: the locale
/**
* Returns this text attribute's text string's natural language (locale).
*
* @return the locale
*/
public Locale getLocale() {
return locale;
}
Returns a hashcode for this text attribute.
Returns: a hashcode value for this object
/**
* Returns a hashcode for this text attribute.
*
* @return a hashcode value for this object
*/
public int hashCode() {
return value.hashCode() ^ locale.hashCode();
}
Returns whether this text attribute is equivalent to the passed in
object. To be equivalent, all of the following conditions must be true:
object is not null. object is an instance of class TextSyntax. - This text attribute's underlying string and
object's underlying string are equal. - This text attribute's locale and
object's locale are equal.
Params: - object –
Object to compare to
Returns: true if object is equivalent to this text attribute, false otherwise
/**
* Returns whether this text attribute is equivalent to the passed in
* object. To be equivalent, all of the following conditions must be true:
* <ol type=1>
* <li>{@code object} is not {@code null}.
* <li>{@code object} is an instance of class {@code TextSyntax}.
* <li>This text attribute's underlying string and {@code object}'s
* underlying string are equal.
* <li>This text attribute's locale and {@code object}'s locale are equal.
* </ol>
*
* @param object {@code Object} to compare to
* @return {@code true} if {@code object} is equivalent to this text
* attribute, {@code false} otherwise
*/
public boolean equals(Object object) {
return(object != null &&
object instanceof TextSyntax &&
this.value.equals (((TextSyntax) object).value) &&
this.locale.equals (((TextSyntax) object).locale));
}
Returns a String identifying this text attribute. The String is the attribute's underlying text string. Returns: a String identifying this object
/**
* Returns a {@code String} identifying this text attribute. The
* {@code String} is the attribute's underlying text string.
*
* @return a {@code String} identifying this object
*/
public String toString(){
return value;
}
}