Interface PqVariantObject

All Superinterfaces:

FieldAccessor

public interface PqVariantObject
extends FieldAccessor

Name-based view of a Variant OBJECT value.

Inherits the primitive getters (getInt, getString, getTimestamp, …) and the getVariant / isNull / getFieldCount / getFieldName metadata accessors from FieldAccessor. The typed getters narrow through the Variant type tag of each field — e.g. getInt("age") accepts a field whose Variant type is INT8/INT16/INT32, and throws VariantTypeException otherwise.

Variant-specific complex navigation uses getObject(String) and getArray(String), not the Parquet-schema-typed getStruct / getList / getMap (which are not exposed here).

Method Summary

Modifier and Type	Method	Description
PqVariantArray	getArray(String name)	Get a field whose Variant type is ARRAY and unwrap it as a nested PqVariantArray view.
PqVariantObject	getObject(String name)	Get a field whose Variant type is OBJECT and unwrap it as a nested PqVariantObject view.

Methods inherited from interface FieldAccessor

getBinary, getBoolean, getDate, getDecimal, getDouble, getFieldCount, getFieldName, getFloat, getInt, getInterval, getLong, getString, getTime, getTimestamp, getUuid, getValue, getVariant, isNull

Method Details

getObject

PqVariantObject getObject(String name)

Get a field whose Variant type is OBJECT and unwrap it as a nested PqVariantObject view.

Parameters:

name - the field name

Returns:

the nested object view, or null if the field is null

Throws:

IllegalArgumentException - if the field is absent

VariantTypeException - if the field's Variant type is not OBJECT

getArray

PqVariantArray getArray(String name)

Get a field whose Variant type is ARRAY and unwrap it as a nested PqVariantArray view.

Parameters:

name - the field name

Returns:

the nested array view, or null if the field is null

Throws:

IllegalArgumentException - if the field is absent

VariantTypeException - if the field's Variant type is not ARRAY