Bug 183890 [DataBinding] Default converter for numbers to numbers
We don't currently default converters for converting between numbers (e.g. int to double, long to int, etc.).
tests/org.eclipse.jface.tests.databinding/src/org/eclipse/core/tests/databinding/UpdateValueStrategyTest.java
public void testDefaultValidatorForStringToInteger() throws Exception {
		assertDefaultValidator(String.class, Integer.class, StringToIntegerValidator.class);
	}
	
	public void testDefaultValidatorForStringToIntegerPrimitive() throws Exception {
		assertDefaultValidator(String.class, Integer.TYPE, StringToIntegerValidator.class);
	}
	
	public void testDefaultValidatorForStringToLong() throws Exception {
		assertDefaultValidator(String.class, Long.class, StringToLongValidator.class);		
	}
	
	public void testDefaultValidatorForStringToLongPrimitive() throws Exception {
		assertDefaultValidator(String.class, Long.TYPE, StringToLongValidator.class);		
	}
	
	public void testDefaultValidatorForStringToFloat() throws Exception {
		assertDefaultValidator(String.class, Float.class, StringToFloatValidator.class);				
	}