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/*
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* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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* Represents the mapping of a trace ID into actual trace string
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*
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*/
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package com.nokia.tracecompiler.model;
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import java.util.ArrayList;
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import java.util.Iterator;
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/**
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* Represents the mapping of a trace ID into actual trace string. When a trace
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* is decoded, the trace ID found from the binary trace file is converted to the
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* text stored in this trace.
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*
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*/
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public class Trace extends TraceObject implements Iterable<TraceParameter> {
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/**
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* The trace string
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*/
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private String trace = ""; //$NON-NLS-1$
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/**
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* List of TraceParameter objects.
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*/
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private ArrayList<TraceParameter> parameters = new ArrayList<TraceParameter>();
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/**
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* The trace group this trace belongs to
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*/
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private TraceGroup group;
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/**
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* Creates a new trace and associates it with given TraceGroup
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*
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* @param group
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* the trace group
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*/
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Trace(TraceGroup group) {
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setModel(group.getModel());
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this.group = group;
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group.addTrace(this);
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}
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/*
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* (non-Javadoc)
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*
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* @see com.nokia.tracecompiler.model.TraceObject#reset()
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*/
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@Override
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void reset() {
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super.reset();
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for (TraceParameter parameter : parameters) {
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// Model listeners are not notified on reset, but if the
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// parameter itself implements a delete notification interface,
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// it must be called to do appropriate cleanup
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notifyOnDelete(parameter);
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parameter.reset();
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}
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parameters.clear();
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}
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/**
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* Sets the trace string. Generates propertyUpdated event to model listeners
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* if the string changes
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*
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* @see TraceModelListener#propertyUpdated(TraceObject, int)
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* @param trace
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* the trace string
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* @throws TraceCompilerException
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*/
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public void setTrace(String trace) throws TraceCompilerException {
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if (trace == null) {
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trace = ""; //$NON-NLS-1$
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}
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if (!trace.equals(this.trace)) {
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this.trace = trace;
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getModel().notifyPropertyUpdated(this, TraceModelListener.TRACE);
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}
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}
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/**
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* Returns the trace string. This never returns null
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*
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* @return the trace string
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*/
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public String getTrace() {
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return trace;
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}
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/**
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* Returns the group to which this trace belongs
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*
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* @return trace group
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*/
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public TraceGroup getGroup() {
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return group;
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}
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/**
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* Adds a new parameter to the end of parameter list. Generates objectAdded
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* event to model listeners
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*
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* @see TraceModelListener#objectAdded(TraceObject, TraceObject)
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* @param parameter
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* the new parameter
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*/
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public void addParameter(TraceParameter parameter) {
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parameters.add(parameter);
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getModel().notifyObjectAdded(this, parameter);
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}
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/**
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* Inserts a new parameter to the given location. Generates objectAdded
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* event to model listeners
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*
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* @see TraceModelListener#objectAdded(TraceObject, TraceObject)
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* @param index
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* the index for new parameter
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* @param parameter
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* the new parameter
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*/
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void insertParameter(int index, TraceParameter parameter) {
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parameters.add(index, parameter);
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getModel().notifyObjectAdded(this, parameter);
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}
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/**
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* Removes a parameter from this trace object. Generates a objectRemoved
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* event to model listeners if the parameter is actually removed
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*
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* @see TraceModelListener#objectRemoved(TraceObject, TraceObject)
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* @param parameter
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* the parameter to be removed
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* @throws TraceCompilerException
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*/
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public void removeParameter(TraceParameter parameter) throws TraceCompilerException {
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if (parameters.remove(parameter)) {
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getModel().notifyObjectRemoved(this, parameter);
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parameter.reset();
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}
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}
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/**
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* Removes parameter at given index
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*
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* @param index
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* the index of the parameter
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* @throws TraceCompilerException
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*/
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public void removeParameterAt(int index) throws TraceCompilerException {
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if (index >= 0 && index < parameters.size()) {
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TraceParameter parameter = parameters.get(index);
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parameters.remove(index);
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getModel().notifyObjectRemoved(this, parameter);
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parameter.reset();
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}
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}
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/**
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* Determines if this object has parameters.
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*
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* @return true if this object has parameters
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*/
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public boolean hasParameters() {
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return !parameters.isEmpty();
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}
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/**
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* Gets the number of parameters
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*
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* @return the number of parameters
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*/
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public int getParameterCount() {
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return parameters.size();
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}
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/**
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* Returns highest parameter ID + 1. Can be used to create an unique ID for
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* a new parameter.
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*
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* @return the next parameter ID
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*/
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public int getNextParameterID() {
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int max = 0;
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for (TraceParameter parameter : parameters) {
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int id = parameter.getID();
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if (id > max) {
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max = id;
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}
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}
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return max + 1;
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}
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/**
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* Gets the parameter at given index
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*
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* @param index
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* the parameter index
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* @return the parameter at the index
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*/
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public TraceParameter getParameter(int index) {
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return parameters.get(index);
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}
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/**
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* Returns the parameters of this object
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*
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* @return iterator over the parameters
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*/
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public Iterator<TraceParameter> getParameters() {
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return parameters.iterator();
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}
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/*
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* (non-Javadoc)
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*
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* @see java.lang.Iterable#iterator()
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*/
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public Iterator<TraceParameter> iterator() {
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return parameters.iterator();
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}
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/**
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* Gets a parameter by ID
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*
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* @param id
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* the parameter ID
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* @return the parameter or null
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*/
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public TraceParameter findParameterByID(int id) {
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TraceParameter retval = null;
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for (TraceParameter parameter : parameters) {
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if (parameter.getID() == id) {
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retval = parameter;
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break;
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}
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}
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return retval;
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}
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/**
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* Gets a parameter by name
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*
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* @param name
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* the name of a parameter
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* @return the parameter or null
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*/
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public TraceParameter findParameterByName(String name) {
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TraceParameter retval = null;
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for (TraceParameter parameter : parameters) {
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if (parameter.getName().equals(name)) {
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retval = parameter;
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break;
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}
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}
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return retval;
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}
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}
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