ParquetFilterBuilder Class Reference

Fluent builder for ParquetFilter objects. More...

#include <OpenMS/FORMAT/ParquetFilter.h>

Collaboration diagram for ParquetFilterBuilder:

Public Member Functions
	ParquetFilterBuilder ()=default
	ParquetFilterBuilder (const ParquetFilterBuilder &)=default
ParquetFilterBuilder &	andNext ()
	Combine the next condition with logical AND.
ParquetFilterBuilder &	orNext ()
	Combine the next condition with logical OR.
ParquetFilterBuilder &	eq (const String &column, Int64 value)
	Add an equality condition for an integer column.
ParquetFilterBuilder &	ne (const String &column, Int64 value)
	Add an inequality condition for an integer column.
ParquetFilterBuilder &	lt (const String &column, Int64 value)
	Add a less-than condition for an integer column.
ParquetFilterBuilder &	le (const String &column, Int64 value)
	Add a less-than-or-equal condition for an integer column.
ParquetFilterBuilder &	gt (const String &column, Int64 value)
	Add a greater-than condition for an integer column.
ParquetFilterBuilder &	ge (const String &column, Int64 value)
	Add a greater-than-or-equal condition for an integer column.
ParquetFilterBuilder &	in (const String &column, const std::vector< Int64 > &values)
	Add an IN condition for an integer column.
ParquetFilterBuilder &	eq (const String &column, const String &value)
	Add an equality condition for a string column.
ParquetFilterBuilder &	ne (const String &column, const String &value)
	Add an inequality condition for a string column.
ParquetFilterBuilder &	lt (const String &column, const String &value)
	Add a less-than condition for a string column.
ParquetFilterBuilder &	le (const String &column, const String &value)
	Add a less-than-or-equal condition for a string column.
ParquetFilterBuilder &	gt (const String &column, const String &value)
	Add a greater-than condition for a string column.
ParquetFilterBuilder &	ge (const String &column, const String &value)
	Add a greater-than-or-equal condition for a string column.
ParquetFilterBuilder &	in (const String &column, const std::vector< String > &values)
	Add an IN condition for a string column.
const ParquetFilter &	filter () const
	Return the built filter.
bool	empty () const
	Return whether the filter is empty.

Private Attributes
ParquetFilter	filter_

Detailed Description

Fluent builder for ParquetFilter objects.

This builder offers a stable, chainable interface for constructing typed filters that can be passed to Parquet-backed readers. It wraps a ParquetFilter instance and forwards all condition-building operations.

Example

using namespace OpenMS;
 
ParquetFilterBuilder f;
f.eq("PRECURSOR_ID", 1318)
 .andNext()
 .eq("ANNOTATION", "y3^1");
 
// Pass f.filter() into Parquet-backed readers.

Constructor & Destructor Documentation

ParquetFilterBuilder() [1/2]

ParquetFilterBuilder ( )

default

ParquetFilterBuilder() [2/2]

ParquetFilterBuilder ( const ParquetFilterBuilder &  )

default

Member Function Documentation

andNext()

ParquetFilterBuilder & andNext

(

)

Combine the next condition with logical AND.

empty()

bool empty

(

)

const

Return whether the filter is empty.

eq() [1/2]

ParquetFilterBuilder & eq	(	const String &	column,
		const String &	value
	)

Add an equality condition for a string column.

Parameters

column	Column name.
value	String value to compare.

eq() [2/2]

ParquetFilterBuilder & eq	(	const String &	column,
		Int64	value
	)

Add an equality condition for an integer column.

Parameters

column	Column name.
value	Integer value to compare.

filter()

const ParquetFilter & filter

(

)

const

Return the built filter.

Returns

ParquetFilter instance.

ge() [1/2]

ParquetFilterBuilder & ge	(	const String &	column,
		const String &	value
	)

Add a greater-than-or-equal condition for a string column.

Parameters

column	Column name.
value	String value to compare.

ge() [2/2]

ParquetFilterBuilder & ge	(	const String &	column,
		Int64	value
	)

Add a greater-than-or-equal condition for an integer column.

Parameters

column	Column name.
value	Integer value to compare.

gt() [1/2]

ParquetFilterBuilder & gt	(	const String &	column,
		const String &	value
	)

Add a greater-than condition for a string column.

Parameters

column	Column name.
value	String value to compare.

gt() [2/2]

ParquetFilterBuilder & gt	(	const String &	column,
		Int64	value
	)

Add a greater-than condition for an integer column.

Parameters

column	Column name.
value	Integer value to compare.

in() [1/2]

ParquetFilterBuilder & in	(	const String &	column,
		const std::vector< Int64 > &	values
	)

Add an IN condition for an integer column.

Parameters

column	Column name.
values	Integer values to compare.

in() [2/2]

ParquetFilterBuilder & in	(	const String &	column,
		const std::vector< String > &	values
	)

Add an IN condition for a string column.

Parameters

column	Column name.
values	String values to compare.

le() [1/2]

ParquetFilterBuilder & le	(	const String &	column,
		const String &	value
	)

Add a less-than-or-equal condition for a string column.

Parameters

column	Column name.
value	String value to compare.

le() [2/2]

ParquetFilterBuilder & le	(	const String &	column,
		Int64	value
	)

Add a less-than-or-equal condition for an integer column.

Parameters

column	Column name.
value	Integer value to compare.

lt() [1/2]

ParquetFilterBuilder & lt	(	const String &	column,
		const String &	value
	)

Add a less-than condition for a string column.

Parameters

column	Column name.
value	String value to compare.

lt() [2/2]

ParquetFilterBuilder & lt	(	const String &	column,
		Int64	value
	)

Add a less-than condition for an integer column.

Parameters

column	Column name.
value	Integer value to compare.

ne() [1/2]

ParquetFilterBuilder & ne	(	const String &	column,
		const String &	value
	)

Add an inequality condition for a string column.

Parameters

column	Column name.
value	String value to compare.

ne() [2/2]

ParquetFilterBuilder & ne	(	const String &	column,
		Int64	value
	)

Add an inequality condition for an integer column.

Parameters

column	Column name.
value	Integer value to compare.

orNext()

ParquetFilterBuilder & orNext

(

)

Combine the next condition with logical OR.

Member Data Documentation

filter_

ParquetFilter filter_

private