Class ExprListenerImpl

java.lang.Object
org.apache.druid.math.expr.antlr.ExprBaseListener
org.apache.druid.math.expr.ExprListenerImpl
All Implemented Interfaces:
org.antlr.v4.runtime.tree.ParseTreeListener, ExprListener

public class ExprListenerImpl extends ExprBaseListener
Implementation of antlr parse tree listener, transforms ParseTree to Expr, based on the grammar defined in Expr.g4. All Expr are created on 'exit' so that children Expr are already constructed.