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community/kernel/src/main/java/org/neo4j/kernel/impl/store/format/highlimit/RecordIO.java
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/* | ||
* Copyright (c) 2002-2016 "Neo Technology," | ||
* Network Engine for Objects in Lund AB [http://neotechnology.com] | ||
* | ||
* This file is part of Neo4j. | ||
* | ||
* Neo4j is free software: you can redistribute it and/or modify | ||
* it under the terms of the GNU General Public License as published by | ||
* the Free Software Foundation, either version 3 of the License, or | ||
* (at your option) any later version. | ||
* | ||
* This program is distributed in the hope that it will be useful, | ||
* but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
* GNU General Public License for more details. | ||
* | ||
* You should have received a copy of the GNU General Public License | ||
* along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
*/ | ||
package org.neo4j.kernel.impl.store.format.highlimit; | ||
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import java.io.IOException; | ||
import java.util.function.Consumer; | ||
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import org.neo4j.function.ThrowingConsumer; | ||
import org.neo4j.io.pagecache.PageCursor; | ||
import org.neo4j.io.pagecache.PagedFile; | ||
import org.neo4j.kernel.impl.store.format.highlimit.Reference.DataAdapter; | ||
import org.neo4j.kernel.impl.store.record.AbstractBaseRecord; | ||
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/** | ||
* Defines the logic of how to store records as record units. | ||
*/ | ||
public interface RecordIO<RECORD extends AbstractBaseRecord> | ||
{ | ||
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void read( RECORD record, PageCursor primaryCursor, int recordSize, PagedFile storeFile, | ||
Consumer<DataAdapter<PageCursor>> reader ) throws IOException; | ||
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void write( RECORD record, PageCursor primaryCursor, int recordSize, PagedFile storeFile, | ||
ThrowingConsumer<DataAdapter<PageCursor>, IOException> writer ) throws IOException; | ||
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/** | ||
* Community implementation only supports single record units. | ||
*/ | ||
class CommunityRecordIO<RECORD extends AbstractBaseRecord> implements RecordIO<RECORD> | ||
{ | ||
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@Override | ||
public void read( RECORD record, PageCursor primaryCursor, int recordSize, PagedFile storeFile, | ||
Consumer<DataAdapter<PageCursor>> reader ) throws IOException | ||
{ | ||
throw new IOException( "Community edition only supports single record units" ); | ||
} | ||
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@Override | ||
public void write( RECORD record, PageCursor primaryCursor, int recordSize, PagedFile storeFile, | ||
ThrowingConsumer<DataAdapter<PageCursor>, IOException> writer ) throws IOException | ||
{ | ||
throw new IOException( "Community edition only supports single record units" ); | ||
} | ||
} | ||
} |
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