StringConverter

Description

The StringConverter class allows you to convert arbitrary values into strings using the following extended conversion rules:

• Numbers: are converted with ‘.’ as decimal point
• DateTime: using the ISO format
• Boolean: “true” for true and “false” for false
• Arrays: as comma-separated list
• Other objects: using toString() method

Static methods

toNullableString

Converts a value into a string or returns null when the value is null.

public static String toNullableString(Object value)

• value: Object - value to convert.
• returns: String - string value or null when value is null.

toString

Converts a value into string or returns "" when the value is null.

public static String toString(Object value)

• value: Object - value to convert.
• returns: String - string value or "" when value is null.

toStringWithDefault

Converts a value into a string or returns a given default when the value is null.

public static String toStringWithDefault(Object value, String defaultValue)

• value: Object - value to convert.
• defaultValue: String - default value.
• returns: String - string value or given default when value is null.

Examples

{
  String value1 = StringConverter.toString(123.456); // Result: "123.456"
  String value2 = StringConverter.toString(true); // Result: "true"
  String value3 = StringConverter.toString(ZonedDateTime.now()); // Result: "2018-01-01T00:00:00.00"
  String value4 = StringConverter.toString(new int[]{1, 2, 3}); // Result: "1,2,3"
  }