Package org.faktorips.runtime.internal

Class IpsStringUtils

java.lang.Object
org.faktorips.runtime.internal.IpsStringUtils
public final class IpsStringUtils extends Object
A collection of utility methods for Strings. We don't use a class library like apache-commons here to minimize the dependencies for the generated code.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final String
    EMPTY
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static final boolean
    isBlank(String s)
    Returns true if s is either null, the empty string or a string that only contains whitespace, otherwise false.
    static final boolean
    isEmpty(String s)
    Returns true if s is either null or the empty string, otherwise false.
    static final boolean
    isNotBlank(String s)
    Returns true if s is neither null, the empty string nor a string that only contains whitespace, otherwise false.
    static final boolean
    isNotEmpty(String s)
    Returns true if s is neither null nor the empty string, otherwise false.
    static final String
    join(Iterable<?> iterable)
    Joins the elements of the provided Iterable into a single String containing the provided elements with the default separator ", ".
    static final String
    join(Iterable<?> iterable, String separator)
    Joins the elements of the provided Iterable into a single String containing the provided elements with the given separator.
    static final <T> String
    join(Iterable<T> iterable, Function<? super T,String> toString)
    Joins the elements of the provided Iterable into a single String containing the provided elements, converted to String with the given toString Function, with the default separator ", ".
    static final <T> String
    join(Iterable<T> iterable, Function<? super T,String> toString, String separator)
    Joins the elements of the provided Iterable into a single String containing the provided elements, converted to String with the given toString Function, with the given separator.
    static final String
    join(Object[] objectArray)
    Joins the elements of the provided array into a single String containing the provided elements with the default separator ", ".
    static final String
    join(Object[] objectArray, String separator)
    Joins the elements of the provided array into a single String containing the provided elements with the given separator.
    static final String
    join(Collection<?> collection, String separator)
    Joins the elements of the provided Collection into a single String containing the provided elements with the given separator.
    static final String
    toLowerFirstChar(String string)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

  • Method Details

    • isEmpty

      public static final boolean isEmpty(String s)
      Returns true if s is either null or the empty string, otherwise false.

    • isNotEmpty

      public static final boolean isNotEmpty(String s)
      Returns true if s is neither null nor the empty string, otherwise false.

    • isBlank

      public static final boolean isBlank(String s)
      Returns true if s is either null, the empty string or a string that only contains whitespace, otherwise false.

    • isNotBlank

      public static final boolean isNotBlank(String s)
      Returns true if s is neither null, the empty string nor a string that only contains whitespace, otherwise false.

    • join

      public static final String join(Collection<?> collection, String separator)
      Joins the elements of the provided Collection into a single String containing the provided elements with the given separator. No delimiter is added before or after the list.
      Parameters:
      collection - the Collection of values to join together, may be null
      separator - the separator to use, null treated as ""
      Returns:
      the joined String, empty if the collection is null

    • join

      public static final String join(Iterable<?> iterable, String separator)
      Joins the elements of the provided Iterable into a single String containing the provided elements with the given separator. No delimiter is added before or after the list.
      Parameters:
      iterable - the Collection of values to join together, may be null
      separator - the separator to use, null treated as ""
      Returns:
      the joined String, empty if the collection is null

    • join

      public static final String join(Iterable<?> iterable)
      Joins the elements of the provided Iterable into a single String containing the provided elements with the default separator ", ". No delimiter is added before or after the list.
      Parameters:
      iterable - the Collection of values to join together, may be null
      Returns:
      the joined String, empty if the collection is null

    • join

      public static final String join(Object[] objectArray)
      Joins the elements of the provided array into a single String containing the provided elements with the default separator ", ". No delimiter is added before or after the list.
      Parameters:
      objectArray - the array of values to join together, may be null
      Returns:
      the joined String, empty if the collection is null

    • join

      public static final String join(Object[] objectArray, String separator)
      Joins the elements of the provided array into a single String containing the provided elements with the given separator. No delimiter is added before or after the list.
      Parameters:
      objectArray - the array of values to join together, may be null
      separator - the separator to use, null treated as ""
      Returns:
      the joined String, empty if the collection is null

    • join

      public static final <T> String join(Iterable<T> iterable, Function<? super T,String> toString)
      Joins the elements of the provided Iterable into a single String containing the provided elements, converted to String with the given toString Function, with the default separator ", ". No delimiter is added before or after the list.
      Parameters:
      iterable - the Collection of values to join together, may be null
      toString - the Function to convert an element from the Iterable to a String
      Returns:
      the joined String, null if the collection is null

    • join

      public static final <T> String join(Iterable<T> iterable, Function<? super T,String> toString, String separator)
      Joins the elements of the provided Iterable into a single String containing the provided elements, converted to String with the given toString Function, with the given separator. No delimiter is added before or after the list.
      Parameters:
      iterable - the Collection of values to join together, may be null
      separator - the separator to use, null treated as ""
      toString - the Function to convert an element from the Iterable to a String
      Returns:
      the joined String, null if the collection is null

    • toLowerFirstChar

      public static final String toLowerFirstChar(String string)