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*
* Copyright (c) 2014-2019 Appsicle
* Copyright (c) 2019-2024 QuestDB
*
* 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 io.questdb.cairo;
import io.questdb.cairo.sql.PartitionFrameCursorFactory;
import io.questdb.cairo.sql.RecordMetadata;
import io.questdb.griffin.PlanSink;
import io.questdb.griffin.SqlExecutionContext;
import io.questdb.std.str.CharSink;
import org.jetbrains.annotations.NotNull;
public abstract class AbstractPartitionFrameCursorFactory implements PartitionFrameCursorFactory {
private final RecordMetadata metadata;
private final long metadataVersion;
private final TableToken tableToken;
public AbstractPartitionFrameCursorFactory(TableToken tableToken, long metadataVersion, RecordMetadata metadata) {
this.tableToken = tableToken;
this.metadataVersion = metadataVersion;
this.metadata = metadata;
}
@Override
public void close() {
}
@Override
public RecordMetadata getMetadata() {
return metadata;
}
@Override
public TableToken getTableToken() {
return tableToken;
}
@Override
public boolean supportsTableRowId(TableToken tableToken) {
return this.tableToken.equals(tableToken);
}
@Override
public void toPlan(PlanSink sink) {
sink.meta("on").val(tableToken.getTableName());
}
@Override
public void toSink(@NotNull CharSink> sink) {
sink.putAscii("{\"name\":\"")
.put(this.getClass().getSimpleName())
.putAscii("\", \"table\":\"")
.put(tableToken)
.putAscii("\"}");
}
protected TableReader getReader(SqlExecutionContext executionContext) {
return executionContext.getReader(
tableToken,
metadataVersion
);
}
}
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