randoop

Class MultiVisitor

java.lang.Object

randoop.MultiVisitor

All Implemented Interfaces:

ExecutionVisitor

public class MultiVisitor
extends java.lang.Object
implements ExecutionVisitor

An execution visitor that chains a list of visitors in sequence. It can be used if the user wants to use more than one visitor to visit a sequence during execution.

When the visitBefore method is called on this visitor, it calls visitMethod on each of the sub-visitors in the order in which the sub-visitors were given when constructing this visitor.

When the visitAfter method is called on this visitor, it calls visitAfter on each of the sub-visitors in turn, also in the order in which they were given when constructing the visitor. If one of these calls returns false, this visitor immediately returns false without calling visitAfter on the remaining visitors.

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.List<ExecutionVisitor>	visitors The list of visitors.

Constructor Summary

Constructors

Constructor and Description
MultiVisitor() Creates a new MultiVisitor.
MultiVisitor(java.util.List<ExecutionVisitor> visitors) Creates a new MultiVisitor.

Method Summary

Modifier and Type	Method and Description
static ExecutionVisitor	createMultiVisitor(java.util.List<ExecutionVisitor> visitors) Returns a MultiVisitor if needed, otherwise a simpler visitor.
void	initialize(ExecutableSequence eseq) Calls the initialize method for each of the visitors, in the order in which the visitors were given during construction of this MultiVisitor.
void	visitAfterSequence(ExecutableSequence eseq) Called after execution of a sequence.
void	visitAfterStatement(ExecutableSequence eseq, int i) Invoked by ExecutableSequence.execute after the i-th statement executes.
void	visitBeforeStatement(ExecutableSequence eseq, int i) Invoked by ExecutableSequence.execute before the i-th statement executes.

Methods inherited from class java.lang.Object

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

Field Detail

visitors

private final java.util.List<ExecutionVisitor> visitors

The list of visitors.

Constructor Detail

MultiVisitor

public MultiVisitor()

Creates a new MultiVisitor.

MultiVisitor

public MultiVisitor(java.util.List<ExecutionVisitor> visitors)

Creates a new MultiVisitor.

Parameters:

visitors - the list of visitors

Method Detail

createMultiVisitor

public static ExecutionVisitor createMultiVisitor(java.util.List<ExecutionVisitor> visitors)

Returns a MultiVisitor if needed, otherwise a simpler visitor.

Parameters:

visitors - the visitors to compose

Returns:

a visitor that has the effect of all the visitors in the argument

initialize

public void initialize(ExecutableSequence eseq)

Calls the initialize method for each of the visitors, in the order in which the visitors were given during construction of this MultiVisitor.

Specified by:

initialize in interface ExecutionVisitor

Parameters:

eseq - the code sequence to be visited

visitAfterStatement

public void visitAfterStatement(ExecutableSequence eseq,
                                int i)

Description copied from interface: ExecutionVisitor

Invoked by ExecutableSequence.execute after the i-th statement executes.

Precondition: statements 0..i have been executed.

Specified by:

visitAfterStatement in interface ExecutionVisitor

Parameters:

eseq - the code sequence to be visited

i - the position of statement to visit

visitBeforeStatement

public void visitBeforeStatement(ExecutableSequence eseq,
                                 int i)

Description copied from interface: ExecutionVisitor

Invoked by ExecutableSequence.execute before the i-th statement executes.

Precondition: statements 0..i-1 have been executed.

Specified by:

visitBeforeStatement in interface ExecutionVisitor

Parameters:

eseq - the code sequence to be visited

i - the position of statement to visit

visitAfterSequence

public void visitAfterSequence(ExecutableSequence eseq)

Description copied from interface: ExecutionVisitor

Called after execution of a sequence.

Specified by:

visitAfterSequence in interface ExecutionVisitor

Parameters:

eseq - the visited code sequence