com.univocity.parsers.common.processor.core

Interface ColumnReader<T>

Type Parameters:

T - the type of the data stored by the columns.

All Known Subinterfaces:

BatchedColumnReader<T>

All Known Implementing Classes:

AbstractBatchedColumnProcessor, AbstractBatchedObjectColumnProcessor, AbstractColumnProcessor, AbstractObjectColumnProcessor, BatchedColumnProcessor, BatchedObjectColumnProcessor, ColumnProcessor, ObjectColumnProcessor

interface ColumnReader<T>

A common interface for Processors that collect the values parsed from each column in a row. Namely: AbstractColumnProcessor, AbstractObjectColumnProcessor, AbstractBatchedColumnProcessor and AbstractBatchedObjectColumnProcessor.

See Also:

AbstractColumnProcessor, AbstractObjectColumnProcessor, AbstractBatchedColumnProcessor, AbstractBatchedObjectColumnProcessor, Processor

Method Summary

Modifier and Type	Method and Description
java.util.List<T>	getColumn(int columnIndex) Returns the values of a given column.
java.util.List<T>	getColumn(java.lang.String columnName) Returns the values of a given column.
java.util.List<java.util.List<T>>	getColumnValuesAsList() Returns the values processed for each column
java.util.Map<java.lang.Integer,java.util.List<T>>	getColumnValuesAsMapOfIndexes() Returns a map of column indexes and their respective list of values parsed from the input.
java.util.Map<java.lang.String,java.util.List<T>>	getColumnValuesAsMapOfNames() Returns a map of column names and their respective list of values parsed from the input.
java.lang.String[]	getHeaders() Returns the column headers.
void	putColumnValuesInMapOfIndexes(java.util.Map<java.lang.Integer,java.util.List<T>> map) Fills a given map associating each column index to its list of values
void	putColumnValuesInMapOfNames(java.util.Map<java.lang.String,java.util.List<T>> map) Fills a given map associating each column name to its list o values

Method Detail

getHeaders

java.lang.String[] getHeaders()

Returns the column headers. This can be either the headers defined in CommonSettings.getHeaders() or the headers parsed in the input when CommonSettings.getHeaders() equals to true

Returns:

the headers of all column parsed.

getColumnValuesAsList

java.util.List<java.util.List<T>> getColumnValuesAsList()

Returns the values processed for each column

Returns:

a list of lists. The stored lists correspond to the position of the column processed from the input; Each list contains the corresponding values parsed for a column, across multiple rows.

putColumnValuesInMapOfNames

void putColumnValuesInMapOfNames(java.util.Map<java.lang.String,java.util.List<T>> map)

Fills a given map associating each column name to its list o values

Parameters:

map - the map to hold the values of each column

Throws:

java.lang.IllegalArgumentException - if a column does not have a name associated to it. In this case, use putColumnValuesInMapOfIndexes(Map) instead.

putColumnValuesInMapOfIndexes

void putColumnValuesInMapOfIndexes(java.util.Map<java.lang.Integer,java.util.List<T>> map)

Fills a given map associating each column index to its list of values

Parameters:

map - the map to hold the values of each column

getColumnValuesAsMapOfNames

java.util.Map<java.lang.String,java.util.List<T>> getColumnValuesAsMapOfNames()

Returns a map of column names and their respective list of values parsed from the input.

Returns:

a map of column names and their respective list of values.

getColumnValuesAsMapOfIndexes

java.util.Map<java.lang.Integer,java.util.List<T>> getColumnValuesAsMapOfIndexes()

Returns a map of column indexes and their respective list of values parsed from the input.

Returns:

a map of column indexes and their respective list of values.

getColumn

java.util.List<T> getColumn(java.lang.String columnName)

Returns the values of a given column.

Parameters:

columnName - the name of the column in the input.

Returns:

a list with all data stored in the given column

getColumn

java.util.List<T> getColumn(int columnIndex)

Returns the values of a given column.

Parameters:

columnIndex - the position of the column in the input (0-based).

Returns:

a list with all data stored in the given column