GeneratorUtils (Vaadin Platform (vaadin-platform-javadoc) 21.0.9 API)

java.lang.Object
- com.vaadin.fusion.generator.GeneratorUtils

```
public final class GeneratorUtils
extends Object
```
A set of static methods used in CCDM generators, so as flow do not depend on external libraries for these operations.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static String`	`capitalize(String s)` Capitalizes the string.
`static int`	`compare(String s1, String s2)` Compares two strings lexicographically.
`static boolean`	`contains(String s, String p)` Checks if the string s contains string p with an additional check for them to not be blank.
`static <T> T`	`defaultIfNull(T o, T def)` Returns a value if it is not null; otherwise, returns default value.
`static String`	`firstNonBlank(String... values)` Searches a first non-blank string in the received arguments.
`static boolean`	`hasAnnotation(com.github.javaparser.ast.nodeTypes.NodeWithAnnotations<?> declaration, com.github.javaparser.ast.CompilationUnit compilationUnit, Class<? extends Annotation> annotation)` Checks whether the declaration has the specific annotation.
`static boolean`	`isBlank(String s)` Checks if the string contains only whitespaces.
`static boolean`	`isNotBlank(String s)` Checks if the string contains not only whitespaces.
`static boolean`	`isNotTrue(Boolean b)` Checks a value for being not truth (or null).
`static boolean`	`isTrue(Boolean b)` Checks a value for being true with an additional null check.
`static String`	`removeEnd(String s, String p)` Removes the end of a string.
`static String`	`replaceChars(String s, char c1, char c2)` Replaces one char with another in a string with an additional null check.
`static String`	`substringAfter(String s, String p)` Gets the substring of an s string that goes after the first entry of the p string.
`static String`	`substringAfterLast(String s, String p)` Gets the substring of an s string that goes after the last entry of the p string.
`static String`	`substringBeforeLast(String s, String p)` Gets the substring of an s string that goes before the last entry of the p string.
`static <P1,P2,R> Stream<R>`	`zip(List<P1> first, List<P2> second, BiFunction<P1,P2,R> zipper)` Runs a lambda against elements of two lists at once.

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

- Method Detail
  - capitalize
```
public static String capitalize(String s)
```
    Capitalizes the string.
    
    Parameters:
    
    s - string to capitalize.
    
    Returns:
    
    result of capitalization.
  - compare
```
public static int compare(String s1,
                          String s2)
```
    Compares two strings lexicographically.
    
    Parameters:
    
    s1 - first string.
    
    s2 - second string.
    
    Returns:
    
    result of comparison. Can be -1, 0, 1.
    
    See Also:
    
    String.compareTo(java.lang.String)
  - contains
```
public static boolean contains(String s,
                               String p)
```
    Checks if the string s contains string p with an additional check for them to not be blank.
    
    Parameters:
    
    s - a string where search to be performed.
    
    p - a string to be used for search.
    
    Returns:
    
    the result of a check.
  - defaultIfNull
```
public static <T> T defaultIfNull(T o,
                                  T def)
```
    Returns a value if it is not null; otherwise, returns default value.
    
    Type Parameters:
    
    T - value type
    
    Parameters:
    
    o - value
    
    def - defaultValue
    
    Returns:
    
    value or default value
  - firstNonBlank
```
public static String firstNonBlank(String... values)
```
    Searches a first non-blank string in the received arguments.
    
    Parameters:
    
    values - a vararg array to search within.
    
    Returns:
    
    a result of the search.
  - hasAnnotation
```
public static boolean hasAnnotation(com.github.javaparser.ast.nodeTypes.NodeWithAnnotations<?> declaration,
                                    com.github.javaparser.ast.CompilationUnit compilationUnit,
                                    Class<? extends Annotation> annotation)
```
    Checks whether the declaration has the specific annotation.
    
    Parameters:
    
    declaration - a declaration that is checked to have an annotation.
    
    compilationUnit - a compilation unit.
    
    annotation - an annotation to check.
    
    Returns:
    
    the result of a check.
  - isBlank
```
public static boolean isBlank(String s)
```
    Checks if the string contains only whitespaces.
    
    Parameters:
    
    s - a string to check.
    
    Returns:
    
    a result of a check.
  - isNotBlank
```
public static boolean isNotBlank(String s)
```
    Checks if the string contains not only whitespaces.
    
    Parameters:
    
    s - a string to check.
    
    Returns:
    
    a result of a check.
  - isNotTrue
```
public static boolean isNotTrue(Boolean b)
```
    Checks a value for being not truth (or null).
    
    Parameters:
    
    b - a boolean to check.
    
    Returns:
    
    a result of a check.
  - isTrue
```
public static boolean isTrue(Boolean b)
```
    Checks a value for being true with an additional null check.
    
    Parameters:
    
    b - a boolean to check for truth.
    
    Returns:
    
    a result of a check.
  - removeEnd
```
public static String removeEnd(String s,
                               String p)
```
    Removes the end of a string.
    
    Parameters:
    
    s - a string to remove an end.
    
    p - an end part of a string.
    
    Returns:
    
    a result string.
  - replaceChars
```
public static String replaceChars(String s,
                                  char c1,
                                  char c2)
```
    Replaces one char with another in a string with an additional null check.
    
    Parameters:
    
    s - a string to perform replace within.
    
    c1 - a char to be replaced.
    
    c2 - a char to be replacement.
    
    Returns:
    
    a result string.
  - substringAfter
```
public static String substringAfter(String s,
                                    String p)
```
    Gets the substring of an s string that goes after the first entry of the p string.
    
    Parameters:
    
    s - a string to get substring of.
    
    p - a string to be searched.
    
    Returns:
    
    a substring.
  - substringAfterLast
```
public static String substringAfterLast(String s,
                                        String p)
```
    Gets the substring of an s string that goes after the last entry of the p string.
    
    Parameters:
    
    s - a string to get substring of.
    
    p - a string to be searched.
    
    Returns:
    
    a substring.
  - substringBeforeLast
```
public static String substringBeforeLast(String s,
                                         String p)
```
    Gets the substring of an s string that goes before the last entry of the p string.
    
    Parameters:
    
    s - a string to get substring of.
    
    p - a string to be searched.
    
    Returns:
    
    a substring.
  - zip
```
public static <P1,P2,R> Stream<R> zip(List<P1> first,
                                      List<P2> second,
                                      BiFunction<P1,P2,R> zipper)
```
    Runs a lambda against elements of two lists at once.
    
    Type Parameters:
    
    P1 - a type of item of a first list.
    
    P2 - a type of item of a second list.
    
    R - a type of the streamed result.
    
    Parameters:
    
    first - a first list.
    
    second - a second list.
    
    zipper - a lambda function that accepts elements from both lists at once.
    
    Returns:
    
    a stream with the values zipper produced.

Class GeneratorUtils

Method Summary

Methods inherited from class java.lang.Object

Method Detail

capitalize

compare

contains

defaultIfNull

firstNonBlank

hasAnnotation

isBlank

isNotBlank

isNotTrue

isTrue

removeEnd

replaceChars

substringAfter

substringAfterLast

substringBeforeLast

zip