StringValue (Wicket Util 7.0.0-M3 API)

java.lang.Object
- org.apache.wicket.util.string.StringValue

All Implemented Interfaces:

Serializable, IClusterable

Direct Known Subclasses:

EnumeratedType
```
public class StringValue
extends Object
implements IClusterable
```
Holds an immutable String value and optionally a Locale, with methods to convert to various types. Also provides some handy parsing methods and a variety of static factory methods.
Objects can be constructed directly from Strings or by using the valueOf() static factory methods. The repeat() static factory methods provide a way of generating a String value that repeats a given char or String a number of times.
Conversions to a wide variety of types can be found in the to*() methods. A generic conversion can be achieved with to(Class).
The beforeFirst(), afterFirst(), beforeLast() and afterLast() methods are handy for parsing things like paths and filenames.

Author:

Jonathan Locke

See Also:
Serialized Form

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`StringValue(String text)` Private constructor to force use of static factory methods.
`protected`	`StringValue(String text, Locale locale)` Private constructor to force use of static factory methods.

Method Summary

Methods
Modifier and Type	Method and Description
`String`	`afterFirst(char c)` Gets the substring after the first occurrence given char.
`String`	`afterLast(char c)` Gets the substring after the last occurrence given char.
`String`	`beforeFirst(char c)` Gets the substring before the first occurrence given char.
`String`	`beforeLast(char c)` Gets the substring before the last occurrence given char.
`boolean`	`equals(Object obj)`
`int`	`hashCode()`
`boolean`	`isEmpty()` Returns whether the text is null or empty
`boolean`	`isNull()` Returns whether the text is null.
`static StringValue`	`repeat(int times, char c)`
`static StringValue`	`repeat(int times, String s)`
`CharSequence`	`replaceAll(CharSequence searchFor, CharSequence replaceWith)` Replaces on this text.
`<T> T`	`to(Class<T> type)` Converts this StringValue to a given type.
`boolean`	`toBoolean()` Convert this text to a boolean.
`boolean`	`toBoolean(boolean defaultValue)` Convert to boolean, returning default value if text is inconvertible.
`Boolean`	`toBooleanObject()` Convert this text to a boolean.
`char`	`toChar()` Convert this text to a char.
`char`	`toChar(char defaultValue)` Convert to character, returning default value if text is inconvertible.
`Character`	`toCharacter()` Convert this text to a Character.
`double`	`toDouble()` Convert this text to a double.
`double`	`toDouble(double defaultValue)` Convert to double, returning default value if text is inconvertible.
`Double`	`toDoubleObject()` Convert this text to a Double.
`Duration`	`toDuration()` Convert this text to a Duration instance.
`Duration`	`toDuration(Duration defaultValue)` Convert to duration, returning default value if text is inconvertible.
`<T extends Enum<T>> T`	`toEnum(Class<T> eClass)` Convert this text to an enum.
`<T extends Enum<T>> T`	`toEnum(Class<T> eClass, T defaultValue)` Convert this text to an enum.
`<T extends Enum<T>> T`	`toEnum(T defaultValue)` Convert this text to an enum.
`int`	`toInt()` Convert this text to an int.
`int`	`toInt(int defaultValue)` Convert to integer, returning default value if text is inconvertible.
`Integer`	`toInteger()` Convert this text to an Integer.
`long`	`toLong()` Convert this text to a long.
`long`	`toLong(long defaultValue)` Convert to long integer, returning default value if text is inconvertible.
`Long`	`toLongObject()` Convert this text to a Long.
`<T> T`	`toOptional(Class<T> type)` Converts this StringValue to a given type or `null` if the value is empty.
`Boolean`	`toOptionalBoolean()` Convert to object types, returning null if text is null or empty.
`Character`	`toOptionalCharacter()` Convert to object types, returning null if text is null or empty.
`Double`	`toOptionalDouble()` Convert to object types, returning null if text is null or empty.
`Duration`	`toOptionalDuration()` Convert to object types, returning null if text is null or empty.
`<T extends Enum<T>> T`	`toOptionalEnum(Class<T> eClass)` Convert to enum, returning null if text is null or empty.
`Integer`	`toOptionalInteger()` Convert to object types, returning null if text is null or empty.
`Long`	`toOptionalLong()` Convert to object types, returning null if text is null or empty.
`String`	`toOptionalString()` Convert to object types, returning null if text is null.
`Time`	`toOptionalTime()` Convert to object types, returning null if text is null or empty.
`String`	`toString()`
`String`	`toString(String defaultValue)` Convert to primitive types, returning default value if text is null.
`Time`	`toTime()` Convert this text to a time instance.
`Time`	`toTime(Time defaultValue)` Convert to time, returning default value if text is inconvertible.
`static StringValue`	`valueOf(AppendingStringBuffer buffer)` Converts the given input to an instance of StringValue.
`static StringValue`	`valueOf(double value)` Converts the given input to an instance of StringValue.
`static StringValue`	`valueOf(double value, int places, Locale locale)` Converts the given input to an instance of StringValue.
`static StringValue`	`valueOf(double value, Locale locale)` Converts the given input to an instance of StringValue.
`static StringValue`	`valueOf(Object object)` Converts the given input to an instance of StringValue.
`static StringValue`	`valueOf(Object object, Locale locale)` Converts the given input to an instance of StringValue.
`static StringValue`	`valueOf(String string)` Converts the given input to an instance of StringValue.
`static StringValue`	`valueOf(String string, Locale locale)` Converts the given input to an instance of StringValue.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - StringValue
```
protected StringValue(String text)
```
    Private constructor to force use of static factory methods.
    
    Parameters:
    text - The text for this string value
  - StringValue
```
protected StringValue(String text,
           Locale locale)
```
    Private constructor to force use of static factory methods.
    
    Parameters:
    text - The text for this string value
    locale - the locale for formatting and parsing
- Method Detail
  - repeat
```
public static StringValue repeat(int times,
                 char c)
```
    Parameters:
    times - Number of times to repeat character
    c - Character to repeat
    
    Returns:
    Repeated character string
  - repeat
```
public static StringValue repeat(int times,
                 String s)
```
    Parameters:
    times - Number of times to repeat string
    s - String to repeat
    
    Returns:
    Repeated character string
  - valueOf
```
public static StringValue valueOf(double value)
```
    Converts the given input to an instance of StringValue.
    
    Parameters:
    value - Double precision value
    
    Returns:
    String value formatted with one place after decimal
  - valueOf
```
public static StringValue valueOf(double value,
                  int places,
                  Locale locale)
```
    Converts the given input to an instance of StringValue.
    
    Parameters:
    value - Double precision value
    places - Number of places after decimal
    locale - Locale to be used for formatting
    
    Returns:
    String value formatted with the given number of places after decimal
  - valueOf
```
public static StringValue valueOf(double value,
                  Locale locale)
```
    Converts the given input to an instance of StringValue.
    
    Parameters:
    value - Double precision value
    locale - Locale to be used for formatting
    
    Returns:
    String value formatted with one place after decimal
  - valueOf
```
public static StringValue valueOf(Object object)
```
    Converts the given input to an instance of StringValue.
    
    Parameters:
    object - An object
    
    Returns:
    String value for object
  - valueOf
```
public static StringValue valueOf(Object object,
                  Locale locale)
```
    Converts the given input to an instance of StringValue.
    
    Parameters:
    object - An object
    locale - Locale to be used for formatting
    
    Returns:
    String value for object
  - valueOf
```
public static StringValue valueOf(String string)
```
    Converts the given input to an instance of StringValue.
    
    Parameters:
    string - A string
    
    Returns:
    String value for string
  - valueOf
```
public static StringValue valueOf(String string,
                  Locale locale)
```
    Converts the given input to an instance of StringValue.
    
    Parameters:
    string - A string
    locale - Locale to be used for formatting
    
    Returns:
    String value for string
  - valueOf
```
public static StringValue valueOf(AppendingStringBuffer buffer)
```
    Converts the given input to an instance of StringValue.
    
    Parameters:
    buffer - A string buffer
    
    Returns:
    String value
  - afterFirst
```
public final String afterFirst(char c)
```
    Gets the substring after the first occurrence given char.
    
    Parameters:
    c - char to scan for
    
    Returns:
    the substring
  - afterLast
```
public final String afterLast(char c)
```
    Gets the substring after the last occurrence given char.
    
    Parameters:
    c - char to scan for
    
    Returns:
    the substring
  - beforeFirst
```
public final String beforeFirst(char c)
```
    Gets the substring before the first occurrence given char.
    
    Parameters:
    c - char to scan for
    
    Returns:
    the substring
  - beforeLast
```
public final String beforeLast(char c)
```
    Gets the substring before the last occurrence given char.
    
    Parameters:
    c - char to scan for
    
    Returns:
    the substring
  - replaceAll
```
public final CharSequence replaceAll(CharSequence searchFor,
                      CharSequence replaceWith)
```
    Replaces on this text.
    
    Parameters:
    searchFor - What to search for
    replaceWith - What to replace with
    
    Returns:
    This string value with searchFor replaces with replaceWith
  - to
```
public final <T> T to(Class<T> type)
           throws StringValueConversionException
```
    Converts this StringValue to a given type.
    
    Parameters:
    type - The type to convert to
    
    Returns:
    The converted value
    
    Throws:
    
    StringValueConversionException
  - toOptional
```
public final <T> T toOptional(Class<T> type)
                   throws StringValueConversionException
```
    Converts this StringValue to a given type or null if the value is empty.
    
    Parameters:
    type - The type to convert to
    
    Returns:
    The converted value
    
    Throws:
    
    StringValueConversionException
  - toBoolean
```
public final boolean toBoolean()
                        throws StringValueConversionException
```
    Convert this text to a boolean.
    
    Returns:
    This string value as a boolean
    
    Throws:
    
    StringValueConversionException
  - toBoolean
```
public final boolean toBoolean(boolean defaultValue)
```
    Convert to boolean, returning default value if text is inconvertible.
    
    Parameters:
    defaultValue - the default value
    
    Returns:
    the converted text as a boolean or the default value if text is empty or inconvertible
    See Also:
    Strings.isTrue(String)
  - toBooleanObject
```
public final Boolean toBooleanObject()
                              throws StringValueConversionException
```
    Convert this text to a boolean.
    
    Returns:
    Converted text
    
    Throws:
    
    StringValueConversionException
  - toChar
```
public final char toChar()
                  throws StringValueConversionException
```
    Convert this text to a char.
    
    Returns:
    This string value as a character
    
    Throws:
    
    StringValueConversionException
  - toChar
```
public final char toChar(char defaultValue)
```
    Convert to character, returning default value if text is inconvertible.
    
    Parameters:
    defaultValue - the default value
    
    Returns:
    the converted text as a primitive char or the default value if text is not a single character
  - toCharacter
```
public final Character toCharacter()
                            throws StringValueConversionException
```
    Convert this text to a Character.
    
    Returns:
    Converted text
    
    Throws:
    
    StringValueConversionException
  - toDouble
```
public final double toDouble()
                      throws StringValueConversionException
```
    Convert this text to a double.
    
    Returns:
    Converted text
    
    Throws:
    
    StringValueConversionException
  - toDouble
```
public final double toDouble(double defaultValue)
```
    Convert to double, returning default value if text is inconvertible.
    
    Parameters:
    defaultValue - the default value
    
    Returns:
    the converted text as a double or the default value if text is empty or inconvertible
  - toDoubleObject
```
public final Double toDoubleObject()
                            throws StringValueConversionException
```
    Convert this text to a Double.
    
    Returns:
    Converted text
    
    Throws:
    
    StringValueConversionException
  - toDuration
```
public final Duration toDuration()
                          throws StringValueConversionException
```
    Convert this text to a Duration instance.
    
    Returns:
    Converted text
    
    Throws:
    
    StringValueConversionException
    See Also:
    Duration.valueOf(String, java.util.Locale)
  - toDuration
```
public final Duration toDuration(Duration defaultValue)
```
    Convert to duration, returning default value if text is inconvertible.
    
    Parameters:
    defaultValue - the default value
    
    Returns:
    the converted text as a duration or the default value if text is empty or inconvertible
    See Also:
    Duration.valueOf(String, java.util.Locale)
  - toInt
```
public final int toInt()
                throws StringValueConversionException
```
    Convert this text to an int.
    
    Returns:
    Converted text
    
    Throws:
    
    StringValueConversionException
  - toInt
```
public final int toInt(int defaultValue)
```
    Convert to integer, returning default value if text is inconvertible.
    
    Parameters:
    defaultValue - the default value
    
    Returns:
    the converted text as an integer or the default value if text is not an integer
  - toInteger
```
public final Integer toInteger()
                        throws StringValueConversionException
```
    Convert this text to an Integer.
    
    Returns:
    Converted text
    
    Throws:
    
    StringValueConversionException
  - toLong
```
public final long toLong()
                  throws StringValueConversionException
```
    Convert this text to a long.
    
    Returns:
    Converted text
    
    Throws:
    
    StringValueConversionException
  - toLong
```
public final long toLong(long defaultValue)
```
    Convert to long integer, returning default value if text is inconvertible.
    
    Parameters:
    defaultValue - the default value
    
    Returns:
    the converted text as a long integer or the default value if text is empty or inconvertible
  - toLongObject
```
public final Long toLongObject()
                        throws StringValueConversionException
```
    Convert this text to a Long.
    
    Returns:
    Converted text
    
    Throws:
    
    StringValueConversionException
  - toOptionalBoolean
```
public final Boolean toOptionalBoolean()
                                throws StringValueConversionException
```
    Convert to object types, returning null if text is null or empty.
    
    Returns:
    converted
    
    Throws:
    
    StringValueConversionException
  - toOptionalCharacter
```
public final Character toOptionalCharacter()
                                    throws StringValueConversionException
```
    Convert to object types, returning null if text is null or empty.
    
    Returns:
    converted
    
    Throws:
    
    StringValueConversionException
  - toOptionalDouble
```
public final Double toOptionalDouble()
                              throws StringValueConversionException
```
    Convert to object types, returning null if text is null or empty.
    
    Returns:
    converted
    
    Throws:
    
    StringValueConversionException
  - toOptionalDuration
```
public final Duration toOptionalDuration()
                                  throws StringValueConversionException
```
    Convert to object types, returning null if text is null or empty.
    
    Returns:
    converted
    
    Throws:
    
    StringValueConversionException
  - toOptionalInteger
```
public final Integer toOptionalInteger()
                                throws StringValueConversionException
```
    Convert to object types, returning null if text is null or empty.
    
    Returns:
    converted
    
    Throws:
    
    StringValueConversionException
  - toOptionalLong
```
public final Long toOptionalLong()
                          throws StringValueConversionException
```
    Convert to object types, returning null if text is null or empty.
    
    Returns:
    converted
    
    Throws:
    
    StringValueConversionException
  - toOptionalString
```
public final String toOptionalString()
```
    Convert to object types, returning null if text is null.
    
    Returns:
    converted
  - toOptionalTime
```
public final Time toOptionalTime()
                          throws StringValueConversionException
```
    Convert to object types, returning null if text is null or empty.
    
    Returns:
    converted
    
    Throws:
    
    StringValueConversionException
  - toString
```
public final String toString()
```
    Overrides:
    
    toString in class Object
    
    Returns:
    The string value
  - toString
```
public final String toString(String defaultValue)
```
    Convert to primitive types, returning default value if text is null.
    
    Parameters:
    defaultValue - the default value to return of text is null
    
    Returns:
    the converted text as a primitive or the default if text is null
  - toTime
```
public final Time toTime()
                  throws StringValueConversionException
```
    Convert this text to a time instance.
    
    Returns:
    Converted text
    
    Throws:
    
    StringValueConversionException
  - toTime
```
public final Time toTime(Time defaultValue)
```
    Convert to time, returning default value if text is inconvertible.
    
    Parameters:
    defaultValue - the default value
    
    Returns:
    the converted text as a time or the default value if text is inconvertible.
  - toEnum
```
public final <T extends Enum<T>> T toEnum(Class<T> eClass)
                            throws StringValueConversionException
```
    Convert this text to an enum.
    
    Parameters:
    eClass - enum type
    
    Returns:
    The value as an enum
    
    Throws:
    
    StringValueConversionException
  - toEnum
```
public final <T extends Enum<T>> T toEnum(T defaultValue)
```
    Convert this text to an enum.
    
    Parameters:
    defaultValue - This will be returned if there is an error converting the value
    
    Returns:
    The value as an enum
  - toEnum
```
public final <T extends Enum<T>> T toEnum(Class<T> eClass,
                           T defaultValue)
```
    Convert this text to an enum.
    
    Parameters:
    eClass - enum type
    defaultValue - This will be returned if there is an error converting the value
    
    Returns:
    The value as an enum
  - toOptionalEnum
```
public final <T extends Enum<T>> T toOptionalEnum(Class<T> eClass)
                                    throws StringValueConversionException
```
    Convert to enum, returning null if text is null or empty.
    
    Parameters:
    eClass - enum type
    
    Returns:
    converted
    
    Throws:
    
    StringValueConversionException
  - isNull
```
public boolean isNull()
```
    Returns whether the text is null.
    
    Returns:
    true if the text is null, false otherwise.
  - isEmpty
```
public boolean isEmpty()
```
    Returns whether the text is null or empty
    
    Returns:
    true if the text is null or .trim().length()==0, false otherwise.
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class Object

Class StringValue

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

StringValue

StringValue

Method Detail

repeat

repeat

valueOf

valueOf

valueOf

valueOf

valueOf

valueOf

valueOf

valueOf

afterFirst

afterLast

beforeFirst

beforeLast

replaceAll

to

toOptional

toBoolean

toBoolean

toBooleanObject

toChar

toChar

toCharacter

toDouble

toDouble

toDoubleObject

toDuration

toDuration

toInt

toInt

toInteger

toLong

toLong

toLongObject

toOptionalBoolean

toOptionalCharacter

toOptionalDouble

toOptionalDuration

toOptionalInteger

toOptionalLong

toOptionalString

toOptionalTime

toString

toString

toTime

toTime

toEnum

toEnum

toEnum

toOptionalEnum

isNull

isEmpty

hashCode

equals