# 6. Predicates

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

Represents a predicate (boolean-valued function) of one argument.

## 6.1 Logical

```java
isTrue()
```

```java
isTrue(final Function<T, Boolean> function)
```

```java
isFalse()
```

```java
isFalse(final Function<T, Boolean> function)
```

```java
not(final predicate)
```

## 6.2 Object

```java
equalObject(final Function<T, Object> source, final Function<T, Object> target)
```

```java
equalObject(final Function<T, Object> source, final Object target)
```

```java
equalObject(final T obj)
```

```java
instanceOf(final Class<?> clazz)
```

```java
instanceOf(final Function<T, ?> source, final Class<?> clazz)
```

```java
nullValue()
```

```java
nullValue(final Function<T, ?> source)
```

## 6.3 String

```java
isAlpha()
```

```java
isAlpha(final Function<T, String> source)
```

```java
isAlphaNumeric()
```

```java
isAlphaNumeric(final Function<T, String> source)
```

```java
isDate(final Function<T, String> source, final String pattern)
```

```java
isDate(final String pattern)
```

```java
isDateTime(final Function<T, String> source, final String pattern)
```

```java
isDateTime(final String pattern)
```

```java
isTime(final Function<T, String> source, final String pattern)
```

```java
isTime(final String pattern)
```

```java
isNumber()
```

```java
isNumber(final Function<T, String> source)
```

```java
isNumeric()
```

```java
isNumeric(final Function<T, String> source)
```

```java
stringContains(final Function<T, String> source, final String str)
```

```java
stringContains(final String str)
```

```java
stringEmptyOrNull()
```

```java
stringEmptyOrNull(final Function<T, String> source)
```

```java
stringEquals(final Function<T, String> source, final Function<T, String> target)
```

```java
stringEquals(final Function<T, String> source, final String value)
```

```java
stringEquals(final String value)
```

```java
stringEqualsIgnoreCase(final Function<T, String> source, final Function<T, String> target)
```

```java
stringEqualsIgnoreCase(final Function<T, String> source, final String value)
```

```java
stringEqualsIgnoreCase(final String value)
```

```java
stringMatches(final Function<T, String> source, final String regex)
```

```java
stringMatches(final String regex)
```

```java
stringSize(final Function<T, String> source, final Function<T, String> target)
```

```java
stringSize(final Function<T, String> source, final Integer size)
```

```java
stringSize(final Integer size)
```

```java
stringSizeBetween(final Function<T, String> source, final Integer minSize, final Integer maxSize)
```

```java
stringSizeBetween(final Integer minSize, final Integer maxSize)
```

```java
stringSizeGreaterThan(final Function<T, String> source, final Function<T, String> target)
```

```java
stringSizeGreaterThan(final Function<T, String> source, final Integer size)
```

```java
stringSizeGreaterThan(final Integer size)
```

```java
stringSizeGreaterThanOrEqual(final Function<T, String> source, final Function<T, String> target)
```

```java
stringSizeGreaterThanOrEqual(final Function<T, String> source, final Integer size)
```

```java
stringSizeGreaterThanOrEqual(final Integer size)
```

```java
stringSizeLessThan(final Function<T, String> source, final Function<T, String> target)
```

```java
stringSizeLessThan(final Function<T, String> source, final Integer size)
```

```java
stringSizeLessThan(final Integer size)
```

```java
stringSizeLessThanOrEqual(final Function<T, String> source, final Function<T, String> target)
```

```java
stringSizeLessThanOrEqual(final Function<T, String> source, final Integer size)
```

```java
stringSizeLessThanOrEqual(final Integer size)
```

```java
stringInCollection(final Collection<String> collection)
```

```java
stringInCollection(final Function<T, String> source, final Collection<String> collection)
```

```java
stringInCollection(final String source, final Function<T, Collection<String>> target)
```

```java
stringInCollection(final Function<T, String> source, final Function<T, Collection<String>> target)
```

## 6.4 Comparable

```java
between(final E min, final E max)
```

```java
between(final E min, final Function<T, E> max)
```

```java
between(final Function<T, E> min, final E max)
```

```java
between(final Function<T, E> min, final Function<T, E> max)
```

```java
between(final Function<T, E> source, final E min, final E max)
```

```java
between(final Function<T, E> source, final E min, final Function<T, E> max)
```

```java
between(final Function<T, E> source, final Function<T, E> min, final E max)
```

```java
between(final Function<T, E> source, final Function<T, E> min, final Function<T, E> max)
```

```java
betweenInclusive(final E min, final E max)
```

```java
betweenInclusive(final E min, final Function<T, E>  max)
```

```java
betweenInclusive(final Function<T, E>  min, final E max)
```

```java
betweenInclusive(final Function<T, E>  min, final Function<T, E> max)
```

```java
betweenInclusive(final Function<T, E> source, final E min, final E max)
```

```java
betweenInclusive(final Function<T, E> source, final E min, final Function<T, E> max)
```

```java
betweenInclusive(final Function<T, E> source, final Function<T, E> min, final E max)
```

```java
betweenInclusive(final Function<T, E> source, final Function<T, E> min, final Function<T, E> max)
```

```java
equalTo(final E value)
```

```java
equalTo(final Function<T, E> source, final E value)
```

```java
equalTo(final Function<T, E> source, final Function<T, E> target)
```

```java
greaterThan(final E min)
```

```java
greaterThan(final Function<T, E> source, final E min)
```

```java
greaterThan(final Function<T, E> source, final Function<T, E> target)
```

```java
greaterThanOrEqual(final E min)
```

```java
greaterThanOrEqual(final Function<T, E> source, final E min)
```

```java
greaterThanOrEqual(final Function<T, E> source, final Function<T, E> target)
```

```java
lessThan(final E max)
```

```java
lessThan(final Function<T, E> source, final E max)
```

```java
lessThan(final Function<T, E> source, final Function<T, E> target)
```

```java
lessThanOrEqual(final E max)
```

```java
lessThanOrEqual(final Function<T, E> source, final E max)
```

```java
lessThanOrEqual(final Function<T, E> source, final Function<T, E> target)
```

## 6.5 Collection

```java
empty()
```

```java
empty(final Function<T, Collection<E>> source)
```

```java
hasAny(final Collection<E> objects)
```

```java
hasAny(final E[] objects)
```

```java
hasAny(final Function<T, Collection<E>> source, final Collection<E> objects)
```

```java
hasAny(final Function<T, Collection<E>> source, final E[] objects)
```

```java
hasItem(final E object)
```

```java
hasItem(final Function<T, Collection<E>> source, final E object)
```

```java
hasItems(final Collection<E> objects)
```

```java
hasItems(final E[] objects)
```

```java
hasItems(final Function<T, Collection<E>> source, final Collection<E> objects)
```

```java
hasItems(final Function<T, Collection<E>> source, final E[] objects)
```

```java
hasSizeBetween(final Function<T, Collection<E>> source, final Integer min, final Integer max)
```

```java
hasSizeBetween(final Integer min, final Integer max)
```

```java
hasSizeBetweenInclusive(final Function<T, Collection<E>> source, final Integer min, final Integer max)
```

```java
hasSizeBetweenInclusive(final Integer min, final Integer max)
```

```java
hasSize(final Function<T, Collection<E>> source, final Function<T, Integer> size)
```

```java
hasSize(final Function<T, Collection<E>> source, final Integer size)
```

```java
hasSize(final Integer size)
```

## 6.6 Map

```java
mapGet(final K key, final Predicate<V> predicate)
```

```java
mapGet(final Function<T, K> key, final Predicate<V> predicate)
```

```java
containsKey(final K key)
```

```java
containsKey(final Function<T, K> key)
```

```java
containsValue(final V value)
```

```java
containsValue(final Function<T, V> value)
```

## 6.7 Date

```java
dateBetween(final Function<T, String> source, final String dateStringMin, final String dateStringMax, final String pattern)
```

```java
dateBetween(final String dateStringMin, final String dateStringMax, final String pattern)
```

```java
dateEqualTo(final Function<T, String> source, final Function<T, String> target, final String pattern)
```

```java
dateEqualTo(final Function<T, String> source, final String target, final String pattern)
```

```java
dateEqualTo(final String dateString, final String pattern)
```

```java
dateGreaterThan(final Function<T, String> source, final Function<T, String> target, final String pattern)
```

```java
dateGreaterThan(final Function<T, String> source, final String target, final String pattern)
```

```java
dateGreaterThan(final String dateString, final String pattern)
```

```java
dateGreaterThanOrEqual(final Function<T, String> source, final Function<T, String> target, final String pattern)
```

```java
dateGreaterThanOrEqual(final Function<T, String> source, final String target, final String pattern)
```

```java
dateGreaterThanOrEqual(final String dateString, final String pattern)
```

```java
dateLessThan(final Function<T, String> source, final Function<T, String> target, final String pattern)
```

```java
dateLessThan(final Function<T, String> source, final String target, final String pattern)
```

```java
dateLessThan(final String dateString, final String pattern)
```

```java
dateLessThanOrEqual(final Function<T, String> source, final Function<T, String> target, final String pattern)
```

```java
dateLessThanOrEqual(final Function<T, String> source, final String target, final String pattern)
```

```java
dateLessThanOrEqual(final String dateString, final String pattern)
```

## 6.8 DateTime

```java
dateTimeBetween(final Function<T, String> source, final String dateStringMin, final String dateStringMax, final String pattern)
```

```java
dateTimeBetween(final String dateStringMin, final String dateStringMax, final String pattern)
```

```java
dateTimeEqualTo(final Function<T, String> source, final Function<T, String> target, final String pattern)
```

```java
dateTimeEqualTo(final Function<T, String> source, final String target, final String pattern)
```

```java
dateTimeEqualTo(final String dateString, final String pattern)
```

```java
dateTimeGreaterThan(final Function<T, String> source, final Function<T, String> target, final String pattern)
```

```java
dateTimeGreaterThan(final Function<T, String> source, final String target, final String pattern)
```

```java
dateTimeGreaterThan(final String dateString, final String pattern)
```

```java
dateTimeGreaterThanOrEqual(final Function<T, String> source, final Function<T, String> target, final String pattern)
```

```java
dateTimeGreaterThanOrEqual(final Function<T, String> source, final String target, final String pattern)
```

```java
dateTimeGreaterThanOrEqual(final String dateString, final String pattern)
```

```java
dateTimeLessThan(final Function<T, String> source, final Function<T, String> target, final String pattern)
```

```java
dateTimeLessThan(final Function<T, String> source, final String target, final String pattern)
```

```java
dateTimeLessThan(final String dateString, final String pattern)
```

```java
dateTimeLessThanOrEqual(final Function<T, String> source, final Function<T, String> target, final String pattern)
```

```java
dateTimeLessThanOrEqual(final Function<T, String> source, final String target, final String pattern)
```

```java
dateTimeLessThanOrEqual(final String dateString, final String pattern)
```

## 6.9 Time

```java
timeEqualTo(final Function<T, String> source, final Function<T, String> target, final String pattern)
```

```java
timeGreaterThan(final Function<T, String> source, final Function<T, String> target, final String pattern)
```

```java
timeLessThan(final Function<T, String> source, final Function<T, String> target, final String pattern)
```

```java
timeGreaterThanOrEqual(final Function<T, String> source, final Function<T, String> target, final String pattern)
```

```java
timeLessThanOrEqual(final Function<T, String> source, final Function<T, String> target, final String pattern)
```

```java
timeEqualTo(final Function<T, String> source, final String target, final String pattern)
```

```java
timeGreaterThan(final Function<T, String> source, final String target, final String pattern)
```

```java
timeLessThan(final Function<T, String> source, final String target, final String pattern)
```

```java
timeGreaterThanOrEqual(final Function<T, String> source, final String target, final String pattern)
```

```java
timeLessThanOrEqual(final Function<T, String> source, final String target, final String pattern)
```

```java
timeBetween(final Function<T, String> source, final String timeStringMin, final String timeStringMax, final String pattern)
```

```java
timeEqualTo(final String timeString, final String pattern)
```

```java
timeGreaterThan(final String timeString, final String pattern)
```

```java
timeLessThan(final String timeString, final String pattern)
```

```java
timeGreaterThanOrEqual(final String timeString, final String pattern)
```

```java
timeLessThanOrEqual(final String timeString, final String pattern)
```

```java
timeBetween(final String timeStringMin, final String timeStringMax, final String pattern)
```

## 6.10 LocalDate

```java
localDateAfterToday()
```

```java
localDateAfterToday(final Function<T, LocalDate> source)
```

```java
localDateAfterOrEqualToday()
```

```java
localDateAfterOrEqualToday(final Function<T, LocalDate> source)
```

```java
localDateBeforeToday()
```

```java
localDateBeforeToday(final Function<T, LocalDate> source)
```

```java
localDateBeforeOrEqualToday()
```

```java
localDateBeforeOrEqualToday(final Function<T, LocalDate> source)
```

```java
localDateIsToday()
```

```java
localDateIsToday(final Function<T, LocalDate> source)
```

```java
localDateEqualTo(final LocalDate localDate)
```

```java
localDateEqualTo(final Function<T, LocalDate> source, final LocalDate localDate)
```

```java
localDateAfter(final LocalDate target)
```

```java
localDateAfter(final Function<T, LocalDate> source, final LocalDate target)
```

```java
localDateAfter(final Function<T, LocalDate> source, final Function<T, LocalDate> target)
```

```java
localDateAfterOrEqual(final LocalDate target)
```

```java
localDateAfterOrEqual(final Function<T, LocalDate> source, final LocalDate target)
```

```java
localDateAfterOrEqual(final Function<T, LocalDate> source, final Function<T, LocalDate> target)
```

```java
localDateBefore(final LocalDate target)
```

```java
localDateBefore(final Function<T, LocalDate> source, final LocalDate target)
```

```java
localDateBefore(final Function<T, LocalDate> source, final Function<T, LocalDate> target)
```

```java
localDateBeforeOrEqual(final LocalDate target)
```

```java
localDateBeforeOrEqual(final Function<T, LocalDate> source, final LocalDate target)
```

```java
localDateBeforeOrEqual(final Function<T, LocalDate> source, final Function<T, LocalDate> target)
```

```java
localDateBetween(final LocalDate min, final LocalDate max)
```

```java
localDateBetween(final Function<T, LocalDate> source, final LocalDate min, final LocalDate max)
```

```java
localDateBetween(final Function<T, LocalDate> source, final Function<T, LocalDate> min, final LocalDate max)
```

```java
localDateBetween(final Function<T, LocalDate> source, final LocalDate min, final Function<T, LocalDate> max)
```

```java
localDateBetween(final Function<T, LocalDate> source, final Function<T, LocalDate> min, final Function<T, LocalDate> max)
```

```java
localDateBetweenOrEqual(final LocalDate min, final LocalDate max)
```

```java
localDateBetweenOrEqual(final Function<T, LocalDate> source, final LocalDate min, final LocalDate max)
```

```java
localDateBetweenOrEqual(final Function<T, LocalDate> source, final Function<T, LocalDate> min, final LocalDate max)
```

```java
localDateBetweenOrEqual(final Function<T, LocalDate> source, final LocalDate min, final Function<T, LocalDate> max)
```

```java
localDateBetweenOrEqual(final Function<T, LocalDate> source, final Function<T, LocalDate> min, final Function<T, LocalDate> max)
```

## 6.11 LocalDateTime

```java
localDateTimeAfterToday()
```

```java
localDateTimeAfterToday(final Function<T, LocalDateTime> source)
```

```java
localDateTimeAfterOrEqualToday()
```

```java
localDateTimeAfterOrEqualToday(final Function<T, LocalDateTime> source)
```

```java
localDateTimeBeforeToday()
```

```java
localDateTimeBeforeToday(final Function<T, LocalDateTime> source)
```

```java
localDateTimeBeforeOrEqualToday()
```

```java
localDateTimeBeforeOrEqualToday(final Function<T, LocalDateTime> source)
```

```java
localDateTimeIsToday()
```

```java
localDateTimeIsToday(final Function<T, LocalDateTime> source)
```

```java
localDateTimeAfterNow()
```

```java
localDateTimeAfterNow(final Function<T, LocalDateTime> source)
```

```java
localDateTimeBeforeNow()
```

```java
localDateTimeBeforeNow(final Function<T, LocalDateTime> source)
```

```java
localDateTimeEqualTo(final LocalDateTime localDateTime)
```

```java
localDateTimeEqualTo(final Function<T, LocalDateTime> source, final LocalDateTime localDateTime)
```

```java
localDateTimeAfter(final LocalDateTime target)
```

```java
localDateTimeAfter(final Function<T, LocalDateTime> source, final LocalDateTime target)
```

```java
localDateTimeAfter(final Function<T, LocalDateTime> source, final Function<T, LocalDateTime> target)
```

```java
localDateTimeAfterOrEqual(final LocalDateTime target)
```

```java
localDateTimeAfterOrEqual(final Function<T, LocalDateTime> source, final LocalDateTime target)
```

```java
localDateTimeAfterOrEqual(final Function<T, LocalDateTime> source, final Function<T, LocalDateTime> target)
```

```java
localDateTimeBefore(final LocalDateTime target)
```

```java
localDateTimeBefore(final Function<T, LocalDateTime> source, final LocalDateTime target)
```

```java
localDateTimeBefore(final Function<T, LocalDateTime> source, final Function<T, LocalDateTime> target)
```

```java
localDateTimeBeforeOrEqual(final LocalDateTime target)
```

```java
localDateTimeBeforeOrEqual(final Function<T, LocalDateTime> source, final LocalDateTime target)
```

```java
localDateTimeBeforeOrEqual(final Function<T, LocalDateTime> source, final Function<T, LocalDateTime> target)
```

```java
localDateTimeBetween(final LocalDateTime min, final LocalDateTime max)
```

```java
localDateTimeBetween(final Function<T, LocalDateTime> source, final LocalDateTime min, final LocalDateTime max)
```

```java
localDateTimeBetween(final Function<T, LocalDateTime> source, final Function<T, LocalDateTime> min, final LocalDateTime max)
```

```java
localDateTimeBetween(final Function<T, LocalDateTime> source, final LocalDateTime min, final Function<T, LocalDateTime> max)
```

```java
localDateTimeBetween(final Function<T, LocalDateTime> source, final Function<T, LocalDateTime> min, final Function<T, LocalDateTime> max)
```

```java
localDateTimeBetweenOrEqual(final LocalDateTime min, final LocalDateTime max)
```

```java
localDateTimeBetweenOrEqual(final Function<T, LocalDateTime> source, final LocalDateTime min, final LocalDateTime max)
```

```java
localDateTimeBetweenOrEqual(final Function<T, LocalDateTime> source, final Function<T, LocalDateTime> min, final LocalDateTime max)
```

```java
localDateTimeBetweenOrEqual(final Function<T, LocalDateTime> source, final LocalDateTime min, final Function<T, LocalDateTime> max)
```

```java
localDateTimeBetweenOrEqual(final Function<T, LocalDateTime> source, final Function<T, LocalDateTime> min, final Function<T, LocalDateTime> max)
```

## 6.12 LocalTime


```java
localTimeAfterNow()
```

```java
localTimeAfterNow(final Function<T, LocalTime> source)
```

```java
localTimeBeforeNow()
```

```java
localTimeBeforeNow(final Function<T, LocalTime> source)
```

```java
localTimeEqualTo(final LocalTime localTime)
```

```java
localTimeEqualTo(final Function<T, LocalTime> source, final LocalTime localTime)
```

```java
localTimeAfter(final LocalTime target)
```

```java
localTimeAfter(final Function<T, LocalTime> source, final LocalTime target)
```

```java
localTimeAfter(final Function<T, LocalTime> source, final Function<T, LocalTime> target)
```

```java
localTimeAfterOrEqual(final LocalTime target)
```

```java
localTimeAfterOrEqual(final Function<T, LocalTime> source, final LocalTime target)
```

```java
localTimeAfterOrEqual(final Function<T, LocalTime> source, final Function<T, LocalTime> target)
```

```java
localTimeBefore(final LocalTime target)
```

```java
localTimeBefore(final Function<T, LocalTime> source, final LocalTime target)
```

```java
localTimeBefore(final Function<T, LocalTime> source, final Function<T, LocalTime> target)
```

```java
localTimeBeforeOrEqual(final LocalTime target)
```

```java
localTimeBeforeOrEqual(final Function<T, LocalTime> source, final LocalTime target)
```

```java
localTimeBeforeOrEqual(final Function<T, LocalTime> source, final Function<T, LocalTime> target)
```

```java
localTimeBetween(final LocalTime min, final LocalTime max)
```

```java
localTimeBetween(final Function<T, LocalTime> source, final LocalTime min, final LocalTime max)
```

```java
localTimeBetween(final Function<T, LocalTime> source, final Function<T, LocalTime> min, final LocalTime max)
```

```java
localTimeBetween(final Function<T, LocalTime> source, final LocalTime min, final Function<T, LocalTime> max)
```

```java
localTimeBetween(final Function<T, LocalTime> source, final Function<T, LocalTime> min, final Function<T, LocalTime> max)
```

```java
localTimeBetweenOrEqual(final LocalTime min, final LocalTime max)
```

```java
localTimeBetweenOrEqual(final Function<T, LocalTime> source, final LocalTime min, final LocalTime max)
```

```java
localTimeBetweenOrEqual(final Function<T, LocalTime> source, final Function<T, LocalTime> min, final LocalTime max)
```

```java
localTimeBetweenOrEqual(final Function<T, LocalTime> source, final LocalTime min, final Function<T, LocalTime> max)
```

```java
localTimeBetweenOrEqual(final Function<T, LocalTime> source, final Function<T, LocalTime> min, final Function<T, LocalTime> max)
```