Package org.web3j.abi

Class FunctionEncoder

java.lang.Object

org.web3j.abi.FunctionEncoder

Direct Known Subclasses:

DefaultFunctionEncoder

public abstract class FunctionEncoder
extends Object

Delegates to DefaultFunctionEncoder unless a FunctionEncoderProvider SPI is found, in which case the first implementation found will be used.

See Also:

• DefaultFunctionEncoder
• FunctionEncoderProvider

Constructor Summary

Constructors

Constructor	Description
FunctionEncoder()

Method Summary

Modifier and Type	Method	Description
protected static String	buildMethodId(String methodSignature)
protected static String	buildMethodSignature(String methodName, List<Type> parameters)
static String	encode(String methodId, List<Type> parameters)	Encode function when we know function method Id / Selector.
static String	encode(Function function)
static String	encodeConstructor(List<Type> parameters)
static String	encodeConstructorPacked(List<Type> parameters)
protected abstract String	encodeFunction(Function function)
protected abstract String	encodePackedParameters(List<Type> parameters)
protected abstract String	encodeParameters(List<Type> parameters)
protected abstract String	encodeWithSelector(String methodId, List<Type> parameters)
static Function	makeFunction(String fnName, List<String> solidityInputTypes, List<Object> arguments, List<String> solidityOutputTypes)

Methods inherited from class java.lang.Object

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

Constructor Details

FunctionEncoder

public FunctionEncoder()

Method Details

encode

public static String encode(Function function)

encode

public static String encode(String methodId,
 List<Type> parameters)

Encode function when we know function method Id / Selector.

encodeConstructor

public static String encodeConstructor(List<Type> parameters)

encodeConstructorPacked

public static String encodeConstructorPacked(List<Type> parameters)

makeFunction

public static Function makeFunction(String fnName,
 List<String> solidityInputTypes,
 List<Object> arguments,
 List<String> solidityOutputTypes)
                             throws ClassNotFoundException,
NoSuchMethodException,
InstantiationException,
IllegalAccessException,
InvocationTargetException

Throws:

ClassNotFoundException

NoSuchMethodException

InstantiationException

IllegalAccessException

InvocationTargetException

encodeFunction

protected abstract String encodeFunction(Function function)

encodeParameters

protected abstract String encodeParameters(List<Type> parameters)

encodeWithSelector

protected abstract String encodeWithSelector(String methodId,
 List<Type> parameters)

Parameters:

methodId - Callback selector / Abi method Id (Hex format)

encodePackedParameters

protected abstract String encodePackedParameters(List<Type> parameters)

buildMethodSignature

protected static String buildMethodSignature(String methodName,
 List<Type> parameters)

buildMethodId

protected static String buildMethodId(String methodSignature)