/*******************************************************************************
* Copyright (c) 2012, 2014 Ericsson
* Copyright (c) 2010, 2011 École Polytechnique de Montréal
* Copyright (c) 2010, 2011 Alexandre Montplaisir <alexandre.montplaisir@gmail.com>
*
* All rights reserved. This program and the accompanying materials are
* made available under the terms of the Eclipse Public License v1.0 which
* accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
*******************************************************************************/
package org.eclipse.tracecompass.statesystem.core.statevalue;
import org.eclipse.jdt.annotation.Nullable;
import org.eclipse.tracecompass.statesystem.core.exceptions.StateValueTypeException;
/**
* A state value containing a variable-sized string
*
* @version 1.0
* @author Alexandre Montplaisir
*/
final class StringStateValue extends TmfStateValue {
private final String value;
public StringStateValue(String valueAsString) {
this.value = valueAsString;
}
@Override
public Type getType() {
return Type.STRING;
}
@Override
public boolean isNull() {
return false;
}
@Override
public boolean equals(@Nullable Object object) {
if (!(object instanceof StringStateValue)) {
return false;
}
StringStateValue other = (StringStateValue) object;
return value.equals(other.value);
}
@Override
public int hashCode() {
return value.hashCode();
}
@Override
public String toString() {
return value;
}
// ------------------------------------------------------------------------
// Unboxing methods
// ------------------------------------------------------------------------
@Override
public String unboxStr() {
return value;
}
@Override
public int compareTo(@Nullable ITmfStateValue other) {
if (other == null) {
throw new IllegalArgumentException();
}
switch (other.getType()) {
case DOUBLE:
throw new StateValueTypeException("A String state value cannot be compared to a Double state value."); //$NON-NLS-1$
case INTEGER:
throw new StateValueTypeException("A String state value cannot be compared to an Integer state value."); //$NON-NLS-1$
case LONG:
throw new StateValueTypeException("A String state value cannot be compared to a Long state value."); //$NON-NLS-1$
case NULL:
/*
* We assume that every string state value is greater than a null
* state value.
*/
return 1;
case STRING:
StringStateValue otherStringValue = (StringStateValue) other;
return value.compareTo(otherStringValue.value);
case CUSTOM:
default:
throw new StateValueTypeException("A String state value cannot be compared to the type " + other.getType()); //$NON-NLS-1$
}
}
}