com.datastax.oss.driver.api.core.cql.BoundStatement Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
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* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
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package com.datastax.oss.driver.api.core.cql;
import com.datastax.oss.driver.api.core.CqlIdentifier;
import com.datastax.oss.driver.api.core.context.DriverContext;
import com.datastax.oss.driver.internal.core.time.ServerSideTimestampGenerator;
import com.datastax.oss.driver.internal.core.util.Sizes;
import com.datastax.oss.protocol.internal.PrimitiveSizes;
import com.datastax.oss.protocol.internal.request.query.Values;
import edu.umd.cs.findbugs.annotations.NonNull;
import edu.umd.cs.findbugs.annotations.Nullable;
import java.nio.ByteBuffer;
import java.util.List;
/**
* A prepared statement in its executable form, with values bound to the variables.
*
* The default implementation returned by the driver is immutable and thread-safe.
* All mutating methods return a new instance.
*/
public interface BoundStatement
extends BatchableStatement, Bindable {
/** The prepared statement that was used to create this statement. */
@NonNull
PreparedStatement getPreparedStatement();
/** The values to bind, in their serialized form. */
@NonNull
List getValues();
/**
* Always returns {@code null} (bound statements can't have a per-request keyspace, they always
* inherit the one of the statement that was initially prepared).
*/
@Override
@Nullable
default CqlIdentifier getKeyspace() {
return null;
}
@Override
default int computeSizeInBytes(@NonNull DriverContext context) {
int size = Sizes.minimumStatementSize(this, context);
// BoundStatement's additional elements to take into account are:
// - prepared ID
// - result metadata ID
// - parameters
// - page size
// - paging state
// - timestamp
// prepared ID
size += PrimitiveSizes.sizeOfShortBytes(getPreparedStatement().getId());
// result metadata ID
if (getPreparedStatement().getResultMetadataId() != null) {
size += PrimitiveSizes.sizeOfShortBytes(getPreparedStatement().getResultMetadataId());
}
// parameters (always sent as positional values for bound statements)
size += Values.sizeOfPositionalValues(getValues());
// page size
size += PrimitiveSizes.INT;
// paging state
if (getPagingState() != null) {
size += PrimitiveSizes.sizeOfBytes(getPagingState());
}
// timestamp
if (!(context.getTimestampGenerator() instanceof ServerSideTimestampGenerator)
|| getQueryTimestamp() != Statement.NO_DEFAULT_TIMESTAMP) {
size += PrimitiveSizes.LONG;
}
return size;
}
}