Method is_string

cpp/src/parquet/types.cc:810–810

// Type checks for public LogicalType class

bool LogicalType::is_string() const { return impl_->type() == LogicalType::Type::STRING; }
bool LogicalType::is_map() const { return impl_->type() == LogicalType::Type::MAP; }
bool LogicalType::is_list() const { return impl_->type() == LogicalType::Type::LIST; }
bool LogicalType::is_enum() const { return impl_->type() == LogicalType::Type::ENUM; }