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pipeline.go
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pipeline.go
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// Copyright (c) 2013 Couchbase, Inc.
// Licensed 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 xpipeline
import (
"github.com/couchbaselabs/dparval"
"github.com/couchbaselabs/tuqtng/misc"
"github.com/couchbaselabs/tuqtng/network"
)
type ExecutablePipeline struct {
Root Operator
}
type Operator interface {
SetSource(Operator)
GetChannels() (dparval.ValueChannel, PipelineSupportChannel)
Run(misc.StopChannel)
processItem(item *dparval.Value) bool
afterItems()
SetQuery(q network.Query)
}
type PipelineSupportChannel chan interface{}
const CHANNEL = "PIPELINE"