58 lines
2.0 KiB
Java
58 lines
2.0 KiB
Java
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/*******************************************************************************
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* Copyright (c) 2015-2018 Skymind, Inc.
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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package org.datavec.api.transform;
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import org.datavec.api.transform.serde.legacy.LegacyMappingHelper;
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import org.datavec.api.writable.Writable;
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import org.nd4j.shade.jackson.annotation.JsonInclude;
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import org.nd4j.shade.jackson.annotation.JsonTypeInfo;
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import java.io.Serializable;
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import java.util.List;
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/**A Transform converts an example to another example, or a sequence to another sequence
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*/
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@JsonInclude(JsonInclude.Include.NON_NULL)
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@JsonTypeInfo(use = JsonTypeInfo.Id.CLASS, include = JsonTypeInfo.As.PROPERTY, property = "@class",
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defaultImpl = LegacyMappingHelper.TransformHelper.class)
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public interface Transform extends Serializable, ColumnOp {
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/**
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* Transform a writable
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* in to another writable
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* @param writables the record to transform
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* @return the transformed writable
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*/
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List<Writable> map(List<Writable> writables);
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/** Transform a sequence */
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List<List<Writable>> mapSequence(List<List<Writable>> sequence);
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/**
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* Transform an object
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* in to another object
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* @param input the record to transform
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* @return the transformed writable
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*/
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Object map(Object input);
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/** Transform a sequence */
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Object mapSequence(Object sequence);
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}
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