Package org.apache.drill.exec.physical.impl.scan.v3.schema

Class ProjectedColumn

java.lang.Object

org.apache.drill.exec.record.metadata.AbstractPropertied

org.apache.drill.exec.record.metadata.AbstractColumnMetadata

org.apache.drill.exec.record.metadata.DynamicColumn

org.apache.drill.exec.physical.impl.scan.v3.schema.ProjectedColumn

All Implemented Interfaces:

ColumnMetadata, Propertied

public class ProjectedColumn
extends DynamicColumn

Enhanced form of a dynamic column which records all information from the project list.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.drill.exec.record.metadata.ColumnMetadata

ColumnMetadata.StructureType

Field Summary

Fields inherited from class org.apache.drill.exec.record.metadata.DynamicColumn

WILDCARD, WILDCARD_COLUMN

Fields inherited from class org.apache.drill.exec.record.metadata.AbstractColumnMetadata

mode, name, precision, scale, type

Fields inherited from interface org.apache.drill.exec.record.metadata.ColumnMetadata

BLANK_AS_NULL, BLANK_AS_PROP, BLANK_AS_ZERO, DEFAULT_ARRAY_SIZE, DEFAULT_VALUE_PROP, EXCLUDE_FROM_WILDCARD, EXPECTED_CARDINALITY_PROP, EXPECTED_WIDTH_PROP, FORMAT_PROP, IMPLICIT_COL_TYPE, IMPLICIT_FILENAME, IMPLICIT_FILEPATH, IMPLICIT_FQN, IMPLICIT_PARTITION_PREFIX, IMPLICIT_SUFFIX

Fields inherited from interface org.apache.drill.exec.record.metadata.Propertied

DRILL_PROP_PREFIX

Constructor Summary

Constructors

Constructor	Description
ProjectedColumn(String name)

Method Summary

Modifier and Type	Method	Description
protected void	addIndex(int index)
protected void	appendContents(StringBuilder buf)
int	arrayDims()
void	becomeArray(int dims)
protected void	bumpRefCount()
ColumnMetadata	copy()
TupleMetadata	explicitMembers()
boolean	hasIndex(int index)
boolean	hasIndexes()
boolean[]	indexes()
boolean	isArray()
boolean	isMap()
boolean	isSimple()
int	maxIndex()
void	projectAllElements()
void	projectAllMembers()
String	projectString()
int	refCount()
TupleMetadata	tupleSchema()	Schema for TUPLE columns.

Methods inherited from class org.apache.drill.exec.record.metadata.DynamicColumn

cloneEmpty, columnString, emptySchema, isDynamic, isEquivalent, schema, structureType, typeString

Methods inherited from class org.apache.drill.exec.record.metadata.AbstractColumnMetadata

bind, childSchema, createColumnMetadata, dateTimeFormatter, decodeDefaultValue, defaultValue, dimensions, equals, equalsWithProperties, equalsWithProperties, escapeSpecialSymbols, expectedElementCount, expectedWidth, format, isDict, isMultiList, isNullable, isScalar, isVariableWidth, isVariant, majorType, mode, name, precision, properties, scale, setDefaultValue, setExpectedElementCount, setExpectedWidth, setFormat, toString, type, valueFromString, valueToString, variantSchema

Methods inherited from class org.apache.drill.exec.record.metadata.AbstractPropertied

booleanProperty, booleanProperty, hashCode, hasProperties, intProperty, intProperty, property, property, removeProperty, setBooleanProperty, setIntProperty, setProperties, setProperty

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.drill.exec.record.metadata.Propertied

booleanProperty, booleanProperty, hasProperties, intProperty, intProperty, property, property, removeProperty, setBooleanProperty, setIntProperty, setProperties, setProperty

Constructor Details

ProjectedColumn

public ProjectedColumn(String name)

Method Details

bumpRefCount

protected void bumpRefCount()

refCount

public int refCount()

isSimple

public boolean isSimple()

isMap

public boolean isMap()

Specified by:

isMap in interface ColumnMetadata

Overrides:

isMap in class AbstractColumnMetadata

projectAllElements

public void projectAllElements()

becomeArray

public void becomeArray(int dims)

arrayDims

public int arrayDims()

isArray

public boolean isArray()

Specified by:

isArray in interface ColumnMetadata

Overrides:

isArray in class AbstractColumnMetadata

addIndex

protected void addIndex(int index)

hasIndexes

public boolean hasIndexes()

hasIndex

public boolean hasIndex(int index)

maxIndex

public int maxIndex()

indexes

public boolean[] indexes()

projectAllMembers

public void projectAllMembers()

explicitMembers

public TupleMetadata explicitMembers()

tupleSchema

public TupleMetadata tupleSchema()

Description copied from interface: ColumnMetadata

Schema for TUPLE columns.

Specified by:

tupleSchema in interface ColumnMetadata

Overrides:

tupleSchema in class AbstractColumnMetadata

Returns:

the tuple schema

appendContents

protected void appendContents(StringBuilder buf)

Overrides:

appendContents in class AbstractColumnMetadata

copy

public ColumnMetadata copy()

Specified by:

copy in interface ColumnMetadata

Overrides:

copy in class DynamicColumn

projectString

public String projectString()