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Avoid usage of kernel dependencies in QueryContext.
Use compatibility friendly wrapper instead.
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41 changes: 41 additions & 0 deletions
41
.../src/main/scala/org/neo4j/cypher/internal/compiler/v3_2/spi/KernelStatisticProvider.scala
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/* | |||
* Copyright (c) 2002-2017 "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.cypher.internal.compiler.v3_2.spi | |||
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/** | |||
* Expose various query execution kernel statistics | |||
*/ | |||
trait KernelStatisticProvider { | |||
/** | |||
* @return observed page cache hits that was caused by particular query execution | |||
*/ | |||
def getPageCacheHits: Long | |||
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/** | |||
* @return observer page cache misses that was caused by particular query execution | |||
*/ | |||
def getPageCacheMisses: Long | |||
} | |||
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object EmptyKernelStatisticProvider extends KernelStatisticProvider { | |||
override def getPageCacheHits: Long = 0 | |||
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override def getPageCacheMisses: Long = 0 | |||
} |
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34 changes: 34 additions & 0 deletions
34
...n/scala/org/neo4j/cypher/internal/compatibility/v3_2/ProfileKernelStatisticProvider.scala
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/* | |||
* Copyright (c) 2002-2017 "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.cypher.internal.compatibility.v3_2 | |||
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import org.neo4j.cypher.internal.compiler.v3_2.spi.KernelStatisticProvider | |||
import org.neo4j.kernel.impl.query.statistic.StatisticProvider | |||
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class ProfileKernelStatisticProvider(statisticProvider: StatisticProvider) extends KernelStatisticProvider { | |||
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override def getPageCacheHits: Long = { | |||
statisticProvider.getPageCacheHits | |||
} | |||
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override def getPageCacheMisses: Long = { | |||
statisticProvider.getPageCacheMisses | |||
} | |||
} |
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