Package org.apache.flink.cdc.common.utils

Class Predicates

java.lang.Object

org.apache.flink.cdc.common.utils.Predicates

public class Predicates
extends Object

A utility class for creating Predicate instances.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Predicates.RegExSplitterByComma	A tokenization class used to split a comma-separated list of regular expressions.
static class	Predicates.RegExSplitterByDot	A tokenization class used to split a dot-separated list of regular expressions.

Constructor Summary

Constructors

Constructor	Description
Predicates()

Method Summary

Modifier and Type	Method	Description
protected static <T> java.util.function.Predicate<T>	includedInPatterns(Collection<Pattern> patterns, java.util.function.Function<T,String> conversion)
static java.util.function.Predicate<String>	includes(String regexPatterns)	Generate a predicate function that for any supplied string returns true if any of the regular expressions in the supplied comma-separated list matches the predicate parameter.
static <T> java.util.function.Predicate<T>	includes(String regexPatterns, java.util.function.Function<T,String> conversion)
static <T> List<T>	listOf(String input, java.util.function.Function<String,String[]> splitter, java.util.function.Function<String,T> factory)
protected static <T> java.util.function.Function<T,Optional<Pattern>>	matchedByPattern(Collection<Pattern> patterns, java.util.function.Function<T,String> conversion)
static <T> Set<T>	setOf(String input, java.util.function.Function<String,String[]> splitter, java.util.function.Function<String,T> factory)
static Set<Pattern>	setOfRegex(String input, int regexFlags)

Methods inherited from class java.lang.Object

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

Constructor Detail

Predicates

public Predicates()

Method Detail

includes

public static <T> java.util.function.Predicate<T> includes(String regexPatterns,
                                                           java.util.function.Function<T,String> conversion)

includedInPatterns

protected static <T> java.util.function.Predicate<T> includedInPatterns(Collection<Pattern> patterns,
                                                                        java.util.function.Function<T,String> conversion)

includes

public static java.util.function.Predicate<String> includes(String regexPatterns)

Generate a predicate function that for any supplied string returns true if any of the regular expressions in the supplied comma-separated list matches the predicate parameter.

Parameters:

regexPatterns - the comma-separated regular expression pattern (or literal) strings; may not be null

Returns:

the predicate function that performs the matching

Throws:

PatternSyntaxException - if the string includes an invalid regular expression

setOfRegex

public static Set<Pattern> setOfRegex(String input,
                                      int regexFlags)

setOf

public static <T> Set<T> setOf(String input,
                               java.util.function.Function<String,String[]> splitter,
                               java.util.function.Function<String,T> factory)

listOf

public static <T> List<T> listOf(String input,
                                 java.util.function.Function<String,String[]> splitter,
                                 java.util.function.Function<String,T> factory)

matchedByPattern

protected static <T> java.util.function.Function<T,Optional<Pattern>> matchedByPattern(Collection<Pattern> patterns,
                                                                                             java.util.function.Function<T,String> conversion)