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LocalTimeSchemaKey.java
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LocalTimeSchemaKey.java
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/*
* Copyright (c) 2002-2018 "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.index.schema;
import org.neo4j.values.storable.LocalTimeValue;
import org.neo4j.values.storable.Value;
import static java.lang.String.format;
/**
* Includes value and entity id (to be able to handle non-unique values). A value can be any {@link LocalTimeValue}.
*/
class LocalTimeSchemaKey extends NativeSchemaKey
{
static final int SIZE =
Long.BYTES + /* nanoOfDay */
Long.BYTES; /* entityId */
long nanoOfDay;
@Override
public Value asValue()
{
return LocalTimeValue.localTime( nanoOfDay );
}
@Override
public void initValueAsLowest()
{
nanoOfDay = Long.MIN_VALUE;
}
@Override
public void initValueAsHighest()
{
nanoOfDay = Long.MAX_VALUE;
}
/**
* Compares the value of this key to that of another key.
* This method is expected to be called in scenarios where inconsistent reads may happen (and later retried).
*
* @param other the {@link LocalTimeSchemaKey} to compare to.
* @return comparison against the {@code other} {@link LocalTimeSchemaKey}.
*/
int compareValueTo( LocalTimeSchemaKey other )
{
return Long.compare( nanoOfDay, other.nanoOfDay );
}
@Override
public String toString()
{
return format( "value=%s,entityId=%d,nanoOfDay=%s", asValue(), getEntityId(), nanoOfDay );
}
@Override
public void writeLocalTime( long nanoOfDay )
{
this.nanoOfDay = nanoOfDay;
}
@Override
protected void assertCorrectType( Value value )
{
if ( !(value instanceof LocalTimeValue) )
{
throw new IllegalArgumentException(
"Key layout does only support LocalTimeValue, tried to create key from " + value );
}
}
}