Package org.web3j.abi

Class Utils

java.lang.Object

org.web3j.abi.Utils

public class Utils
extends Object

Utility functions.

Method Summary

Modifier and Type	Method	Description
static List<TypeReference<Type>>	convert(List<TypeReference<?>> input)
static <T extends Type> Class<T>	extractParameterFromAnnotation(Annotation[] parameterAnnotation)
static Constructor	findStructConstructor(Class classType)
static TypeReference<DynamicArray>	getDynamicArrayTypeReference(Class parameter)
static String	getStructType(Class type)
static String	getTypeName(Type type)	Ports Type.getTypeName().
static List<Field>	staticStructNestedPublicFieldsFlatList(Class<Type> classType)	Returns flat list of canonical fields in a static struct.
static List<Field>	staticStructsNestedFieldsFlatList(Class<Type> classType)	Goes over a static structs and enumerates all of its fields and nested structs fields recursively.
static <T, R extends Type<T>, E extends Type<T>> List<E>	typeMap(List<List<T>> input, Class<E> outerDestType, Class<R> innerType)
static <T, R extends Type<T>> List<R>	typeMap(List<T> input, Class<R> destType)

Methods inherited from class java.lang.Object

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

Method Details

getStructType

public static String getStructType(Class type)

getDynamicArrayTypeReference

public static TypeReference<DynamicArray> getDynamicArrayTypeReference(Class parameter)

extractParameterFromAnnotation

public static <T extends Type> Class<T> extractParameterFromAnnotation(Annotation[] parameterAnnotation)

findStructConstructor

public static Constructor findStructConstructor(Class classType)

convert

public static List<TypeReference<Type>> convert(List<TypeReference<?>> input)

typeMap

public static <T,
R extends Type<T>,
E extends Type<T>>
List<E> typeMap(List<List<T>> input,
 Class<E> outerDestType,
 Class<R> innerType)

typeMap

public static <T,
R extends Type<T>> List<R> typeMap(List<T> input,
 Class<R> destType)
                                             throws TypeMappingException

Throws:

TypeMappingException

staticStructNestedPublicFieldsFlatList

public static List<Field> staticStructNestedPublicFieldsFlatList(Class<Type> classType)

Returns flat list of canonical fields in a static struct. Example: struct Baz { Struct Bar { int a, int b }, int c } will return {a, b, c}.

Parameters:

classType - Static struct type

Returns:

Flat list of canonical fields in a nested struct

staticStructsNestedFieldsFlatList

public static List<Field> staticStructsNestedFieldsFlatList(Class<Type> classType)

Goes over a static structs and enumerates all of its fields and nested structs fields recursively.

Parameters:

classType - Static struct type

Returns:

Flat list of all the fields nested in the struct

getTypeName

public static String getTypeName(Type type)

Ports Type.getTypeName().