io.neow3j.devpack.system

Class ExecutionEngine

java.lang.Object

io.neow3j.devpack.system.ExecutionEngine

public class ExecutionEngine
extends java.lang.Object

Provides access to the caller of a smart contract and other information about the current contract execution.

Constructor Summary

Constructors

Constructor and Description
ExecutionEngine()

Method Summary

Modifier and Type	Method and Description
static byte[]	getCallingScriptHash() Gets the script hash of the caller of the contract.
static byte[]	getEntryScriptHash() Gets the script hash of the entry points of the contract (in the contract invocation chain).
static byte[]	getExecutingScriptHash() Gets the script hash of the currently executing contract.
static Transaction	getScriptContainer() Gets the container that triggered the execution of the current contract.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExecutionEngine

public ExecutionEngine()

Method Detail

getScriptContainer

public static Transaction getScriptContainer()

Gets the container that triggered the execution of the current contract.

The container of an contract-invoking script is usually a Transaction. In that case, the return value can be cast to a Transaction. E.g.:

Transaction tx = (Transaction) ExecutionEngine.getScriptContainer();

Returns:

the script container.

getExecutingScriptHash

public static byte[] getExecutingScriptHash()

Gets the script hash of the currently executing contract.

Returns:

the script hash of the executing contract.

getCallingScriptHash

public static byte[] getCallingScriptHash()

Gets the script hash of the caller of the contract.

Returns:

the caller's script hash.

getEntryScriptHash

public static byte[] getEntryScriptHash()

Gets the script hash of the entry points of the contract (in the contract invocation chain).

Returns:

the script hash.