Expression builder utility

The ExpressionBuilder is a utility class to build criteria objects that are used with the CriteriaBuilder.

warning

This section covers the Expression Builder utility - which is used to build Grid and Chart filter criteria.

There is a separate UI input component of the same name - which is used for defining arbitrary expressions. This component is covered in a separate section.

Methods

Method	Description	Params	Return value	Example
withField	Sets the field in the expression object	string	ExpressionBuilder	new ExpressionBuilder().withField('TRADE_ID')
withValue	Sets the value the expression is tested against	unknown (can be string, boolean or number)	ExpressionBuilder	new ExpressionBuilder().withValue('TR_1234') //checking a string new ExpressionBuilder().withValue(500) //checking a number new ExpressionBuilder().withValue(boolean) //checking a boolean
withSerialiser	Sets the serialiser type on the expression	Serialiser	ExpressionBuilder	new ExpressionBuilder().withSerialiser(Serialiser.EQ) // testing equals new ExpressionBuilder().withSerialiser(Serialiser.GT) // testing greater than new ExpressionBuilder().withSerialiser(Serialiser.GE) // testing greater new ExpressionBuilder().withSerialiser(Serialiser.LT) // testing less than new ExpressionBuilder().withSerialiser(Serialiser.LE) // testing less
withGroup	ToDo What does group do	string	ExpressionBuilder	new ExpressionBuilder().withGroup('group')
Build	Creates an Expression object based on the values sret	none	Expression	new ExpressionBuilder().build();