Package org.apache.drill.exec.record.metadata.schema.parser
package org.apache.drill.exec.record.metadata.schema.parser
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ClassDescriptionThis class provides an empty implementation of
SchemaParserVisitor, which can be extended to create a visitor which only needs to handle a subset of the available methods.This interface defines a complete generic visitor for a parse tree produced bySchemaParser.Is thrown when parsing schema using ANTLR4 parser.Visits schema and stores metadata about its columns intoTupleMetadataclass.Visits column definition, adds column properties toColumnMetadataif present.Visits various types of columns (primitive, struct, map, array) and stores their metadata intoColumnMetadataclass.Visits schema or column properties.Is used for case-insensitive lexing.