Strings.concat

Concatenates the string values of the input fields. Non-string values will be converted to strings using a default format.

By default, a null value is treated as an empty string. This behavior is configurable.

String

Strings.find

Finds the first index of the substring that matches the specified pattern. If not found, -1 will be returned.

int

Pattern to match

Strings.indexOf

Finds the first index of the specified string value. If not found, -1 will be returned.

int

String value

Strings.lastIndexOf

Finds the last index of the specified string value. If not found, -1 will be returned.

int

String value

Strings.length

Calculates the length of string values.

int

String value

Strings.mid

Produces a substring of the input string value in the specified field, starting at position with the specified length.

String

Strings.replaceAll

Replaces all occurrences of a given pattern in the result of a specified expression. If the pattern is not matched, the value is unchanged.

String

Strings.replaceFirst

Replaces the first occurrence of a given pattern in the result of a specified expression. If the pattern is not matched, the value is unchanged.

String

Strings.substr

Produces a substring of the input string value in the specified field, between specified indexes. If an index falls outside the bounds of the string value, it is truncated to the nearest boundary.

String

Strings.toLowerCase

Returns the input string value with all letters in uppercase.

String

String value

Strings.toUpperCase

Returns the input string value with all letters in lowercase.

String

String value

Strings.trim

Trims white space from the beginning and end of the input String value.

String

Input String value