/**
* Gets the right hand expression as a simple Java value. If the rhs is a more complex
* expression, then creates a scratch variable and assigns the right hand expression to it. Then
* returns the scratch variable.
*/
private Expression rhsAsJava() {
if (!RelDataTypeFactoryImpl.isJavaType(rhsType)) {
Variable variable = translator.createScratchVariable(rhsType);
addStatement(
new ExpressionStatement(
new AssignmentExpression(variable, AssignmentExpression.EQUALS, rhsExp)));
return variable;
}
return rhsExp;
}
/** Creates a left hand side variable if one was not provided. */
private void ensureLhs() {
if (lhsExp == null) {
lhsExp = translator.createScratchVariable(lhsType);
}
}