add missing toString overrides

src/main/java/com/synerset/exampleproject/state/AirFlowFactory.java

@@ -21,7 +21,7 @@ public AirFlowFactory(DryAirProperties dryAirProperties) {
     }
 
     public Either<InvalidFlow, FlowOfDryAir> createFlowOfDryAir(Pressure pressure, Temperature temperature, MassFlow massFlow) {
-        LOGGER.info("Trying to create instance of dry air");
+        LOGGER.info("Trying to create instance of dry air with parameters: Ps={}, ta={}, mda={}",pressure.toPascal(), temperature.toCelsius(), massFlow.toKiloGramPerSecond());
         return dryAirProperties.density(temperature, pressure)
                 .mapLeft(l -> {
                     LOGGER.error("Flow cannot be created due to invalid density.");

src/main/java/com/synerset/unitsystem/density/KiloGramPerCubicMeter.java

@@ -51,4 +51,9 @@ static Either<InvalidDensity, KiloGramPerCubicMeter> of(double value){
                 : Either.right(new KiloGramPerCubicMeter(value));
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
+
 }

src/main/java/com/synerset/unitsystem/density/PoundPerCubicFoot.java

@@ -47,4 +47,8 @@ static PoundPerCubicFoot of(double value) {
         return new PoundPerCubicFoot(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }

src/main/java/com/synerset/unitsystem/dynamicviscosity/KiloGramPerMeterSecond.java

@@ -51,4 +51,8 @@ static KiloGramPerMeterSecond of(double value){
         return new KiloGramPerMeterSecond(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }

src/main/java/com/synerset/unitsystem/dynamicviscosity/PascalSecond.java

@@ -52,4 +52,8 @@ static PascalSecond of(double value){
         return new PascalSecond(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }

src/main/java/com/synerset/unitsystem/dynamicviscosity/Poise.java

@@ -52,4 +52,8 @@ static Poise of(double value){
         return new Poise(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }

src/main/java/com/synerset/unitsystem/kinematicviscosity/SquareInchPerSecond.java

@@ -47,4 +47,8 @@ static SquareInchPerSecond of(double value){
         return new SquareInchPerSecond(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }

src/main/java/com/synerset/unitsystem/kinematicviscosity/SquareMeterPerSecond.java

@@ -46,4 +46,8 @@ static SquareMeterPerSecond of(double value){
         return new SquareMeterPerSecond(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }

src/main/java/com/synerset/unitsystem/massflow/KiloGramPerHour.java

@@ -52,4 +52,9 @@ public int hashCode() {
     static KiloGramPerHour of(double value){
         return new KiloGramPerHour(value);
     }
+
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }

src/main/java/com/synerset/unitsystem/massflow/KiloGramPerSecond.java

@@ -51,4 +51,9 @@ static KiloGramPerSecond of(double value){
         return new KiloGramPerSecond(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
+
 }

src/main/java/com/synerset/unitsystem/massflow/PoundPerSecond.java

@@ -52,4 +52,8 @@ static PoundPerSecond of(double value) {
         return new PoundPerSecond(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }

src/main/java/com/synerset/unitsystem/power/BtuPerHour.java

@@ -52,4 +52,8 @@ static BtuPerHour of(double value){
         return new BtuPerHour(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }

src/main/java/com/synerset/unitsystem/power/KiloWatt.java

@@ -52,4 +52,8 @@ static KiloWatt of(double value) {
         return new KiloWatt(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }

src/main/java/com/synerset/unitsystem/power/Watt.java

@@ -51,4 +51,8 @@ static Watt of(double value) {
         return new Watt(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }

src/main/java/com/synerset/unitsystem/pressure/Bar.java

@@ -65,4 +65,8 @@ static Bar of(double value) {
         return new Bar(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }

src/main/java/com/synerset/unitsystem/pressure/HectoPascal.java

@@ -65,4 +65,8 @@ static HectoPascal of(double value) {
         return new HectoPascal(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }

src/main/java/com/synerset/unitsystem/pressure/MegaPascal.java

@@ -65,4 +65,8 @@ public static MegaPascal of(double value) {
         return new MegaPascal(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }

src/main/java/com/synerset/unitsystem/pressure/Pascal.java

@@ -62,4 +62,8 @@ static Pascal of(double value){
         return new Pascal(value);
     }
 
-  }
+    @Override
+    public String toString() {
+        return  value + DEF_SYMBOL;
+    }
+}

src/main/java/com/synerset/unitsystem/pressure/Psi.java

@@ -64,4 +64,8 @@ static Psi of(double value){
         return new Psi(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }

src/main/java/com/synerset/unitsystem/specificenthalpy/JoulePerKiloGram.java

@@ -47,4 +47,8 @@ static JoulePerKiloGram of(double value){
         return new JoulePerKiloGram(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }

src/main/java/com/synerset/unitsystem/specificenthalpy/KiloJoulePerKiloGram.java

@@ -47,4 +47,8 @@ static KiloJoulePerKiloGram of(double value){
         return new KiloJoulePerKiloGram(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }

src/main/java/com/synerset/unitsystem/temperature/Celsius.java

@@ -62,6 +62,6 @@ static Either<InvalidTemperature, Celsius> of(double value) {
 
     @Override
     public String toString() {
-        return value + ", " + DEF_SYMBOL;
+        return value + DEF_SYMBOL;
     }
 }

src/main/java/com/synerset/unitsystem/temperature/Fahrenheit.java

@@ -62,7 +62,7 @@ static Either<InvalidTemperature, Fahrenheit> of(double value) {
 
     @Override
     public String toString() {
-        return value + ", " + DEF_SYMBOL;
+        return value + DEF_SYMBOL;
     }
 
 }

src/main/java/com/synerset/unitsystem/temperature/Kelvin.java

@@ -62,6 +62,6 @@ static Either<InvalidTemperature, Kelvin> of(double value) {
 
     @Override
     public String toString() {
-        return value + ", " + DEF_SYMBOL;
+        return value + DEF_SYMBOL;
     }
 }

src/main/java/com/synerset/unitsystem/thermalconductivity/BtuPerHourFootFahrenheit.java

@@ -47,4 +47,9 @@ static BtuPerHourFootFahrenheit of(double value) {
         return new BtuPerHourFootFahrenheit(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
+
 }

src/main/java/com/synerset/unitsystem/thermalconductivity/WattPerMeterKelvin.java

@@ -48,4 +48,8 @@ static WattPerMeterKelvin of(double value) {
         return new WattPerMeterKelvin(value);
     }
 
+    @Override
+    public String toString() {
+        return value + DEF_SYMBOL;
+    }
 }