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option.go
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option.go
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package arrjson
import (
"github.com/jiuzhiqian/aliyun-odps-go-sdk/arrow"
"github.com/jiuzhiqian/aliyun-odps-go-sdk/arrow/memory"
)
type config struct {
alloc memory.Allocator
schema *arrow.Schema
}
func newConfig(opts ...Option) *config {
cfg := &config{
alloc: memory.NewGoAllocator(),
}
for _, opt := range opts {
opt(cfg)
}
return cfg
}
// Option is a functional option to configure opening or creating Arrow files
// and streams.
type Option func(*config)
// WithAllocator specifies the Arrow memory allocator used while building records.
func WithAllocator(mem memory.Allocator) Option {
return func(cfg *config) {
cfg.alloc = mem
}
}
// WithSchema specifies the Arrow schema to be used for reading or writing.
func WithSchema(schema *arrow.Schema) Option {
return func(cfg *config) {
cfg.schema = schema
}
}