Package org.apache.drill.exec.record.metadata.schema.parser

Class SchemaVisitor.ColumnVisitor

java.lang.Object

org.antlr.v4.runtime.tree.AbstractParseTreeVisitor<T>

org.apache.drill.exec.record.metadata.schema.parser.SchemaParserBaseVisitor<ColumnMetadata>

org.apache.drill.exec.record.metadata.schema.parser.SchemaVisitor.ColumnVisitor

All Implemented Interfaces:

org.antlr.v4.runtime.tree.ParseTreeVisitor<ColumnMetadata>, SchemaParserVisitor<ColumnMetadata>

Enclosing class:

SchemaVisitor

public static class SchemaVisitor.ColumnVisitor
extends SchemaParserBaseVisitor<ColumnMetadata>

Visits various types of columns (primitive, struct, map, array) and stores their metadata into ColumnMetadata class.

Constructor Summary

Constructors

Constructor	Description
ColumnVisitor()

Method Summary

Modifier and Type	Method	Description
ColumnMetadata	visitComplex_array_column(SchemaParser.Complex_array_columnContext ctx)	Visit a parse tree produced by SchemaParser.complex_array_column().
ColumnMetadata	visitMap_column(SchemaParser.Map_columnContext ctx)	Visit a parse tree produced by SchemaParser.map_column().
ColumnMetadata	visitPrimitive_column(SchemaParser.Primitive_columnContext ctx)	Visit a parse tree produced by SchemaParser.primitive_column().
ColumnMetadata	visitSimple_array_column(SchemaParser.Simple_array_columnContext ctx)	Visit a parse tree produced by SchemaParser.simple_array_column().
ColumnMetadata	visitStruct_column(SchemaParser.Struct_columnContext ctx)	Visit a parse tree produced by SchemaParser.struct_column().
ColumnMetadata	visitUnion_column(SchemaParser.Union_columnContext ctx)	Visit a parse tree produced by SchemaParser.union_column().

Methods inherited from class org.apache.drill.exec.record.metadata.schema.parser.SchemaParserBaseVisitor

visitArray_map_type_def, visitArray_simple_type_def, visitArray_struct_type_def, visitArray_type, visitArray_union_type_def, visitBigint, visitBinary, visitBoolean, visitColumn, visitColumn_def, visitColumns, visitComplex_array_type, visitDate, visitDecimal, visitDefault_value, visitDouble, visitDynamic, visitFloat, visitFormat_value, visitId, visitInt, visitInterval, visitInterval_day, visitInterval_year, visitMap_key_simple_type_def, visitMap_key_type_def, visitMap_type, visitMap_value_array_type_def, visitMap_value_map_type_def, visitMap_value_simple_type_def, visitMap_value_struct_type_def, visitMap_value_type_def, visitMap_value_union_type_def, visitNullability, visitProperty_pair, visitProperty_values, visitQuoted_id, visitSchema, visitSimple_array_type, visitSmallint, visitString_value, visitStruct_type, visitTime, visitTimestamp, visitTinyint, visitUnion_type, visitUnit1, visitUnit2, visitUnit4, visitUnit8, visitVarchar

Methods inherited from class org.antlr.v4.runtime.tree.AbstractParseTreeVisitor

aggregateResult, defaultResult, shouldVisitNextChild, visit, visitChildren, visitErrorNode, visitTerminal

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.antlr.v4.runtime.tree.ParseTreeVisitor

visit, visitChildren, visitErrorNode, visitTerminal

Constructor Details

ColumnVisitor

public ColumnVisitor()

Method Details

visitPrimitive_column

public ColumnMetadata visitPrimitive_column(SchemaParser.Primitive_columnContext ctx)

Description copied from class: SchemaParserBaseVisitor

Visit a parse tree produced by SchemaParser.primitive_column().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitPrimitive_column in interface SchemaParserVisitor<ColumnMetadata>

Overrides:

visitPrimitive_column in class SchemaParserBaseVisitor<ColumnMetadata>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitSimple_array_column

public ColumnMetadata visitSimple_array_column(SchemaParser.Simple_array_columnContext ctx)

Description copied from class: SchemaParserBaseVisitor

Visit a parse tree produced by SchemaParser.simple_array_column().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitSimple_array_column in interface SchemaParserVisitor<ColumnMetadata>

Overrides:

visitSimple_array_column in class SchemaParserBaseVisitor<ColumnMetadata>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitStruct_column

public ColumnMetadata visitStruct_column(SchemaParser.Struct_columnContext ctx)

Description copied from class: SchemaParserBaseVisitor

Visit a parse tree produced by SchemaParser.struct_column().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitStruct_column in interface SchemaParserVisitor<ColumnMetadata>

Overrides:

visitStruct_column in class SchemaParserBaseVisitor<ColumnMetadata>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitMap_column

public ColumnMetadata visitMap_column(SchemaParser.Map_columnContext ctx)

Description copied from class: SchemaParserBaseVisitor

Visit a parse tree produced by SchemaParser.map_column().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitMap_column in interface SchemaParserVisitor<ColumnMetadata>

Overrides:

visitMap_column in class SchemaParserBaseVisitor<ColumnMetadata>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitComplex_array_column

public ColumnMetadata visitComplex_array_column(SchemaParser.Complex_array_columnContext ctx)

Description copied from class: SchemaParserBaseVisitor

Visit a parse tree produced by SchemaParser.complex_array_column().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitComplex_array_column in interface SchemaParserVisitor<ColumnMetadata>

Overrides:

visitComplex_array_column in class SchemaParserBaseVisitor<ColumnMetadata>

Parameters:

ctx - the parse tree

Returns:

the visitor result

visitUnion_column

public ColumnMetadata visitUnion_column(SchemaParser.Union_columnContext ctx)

Description copied from class: SchemaParserBaseVisitor

Visit a parse tree produced by SchemaParser.union_column().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

Specified by:

visitUnion_column in interface SchemaParserVisitor<ColumnMetadata>

Overrides:

visitUnion_column in class SchemaParserBaseVisitor<ColumnMetadata>

Parameters:

ctx - the parse tree

Returns:

the visitor result