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DefaultCapableIndexReference.java
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DefaultCapableIndexReference.java
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/*
* Copyright (c) 2002-2018 "Neo4j,"
* Neo4j Sweden AB [http://neo4j.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.api.store;
import java.util.Arrays;
import org.neo4j.internal.kernel.api.CapableIndexReference;
import org.neo4j.internal.kernel.api.IndexCapability;
import org.neo4j.internal.kernel.api.IndexOrder;
import org.neo4j.internal.kernel.api.IndexReference;
import org.neo4j.internal.kernel.api.IndexValueCapability;
import org.neo4j.internal.kernel.api.schema.SchemaDescriptor;
import org.neo4j.kernel.api.index.IndexProvider;
import org.neo4j.kernel.api.schema.index.IndexDescriptor;
import org.neo4j.values.storable.ValueCategory;
public class DefaultCapableIndexReference implements CapableIndexReference
{
private final int label;
private final int[] properties;
private final boolean unique;
private final IndexProvider.Descriptor providerDescriptor;
private final IndexCapability capability;
public DefaultCapableIndexReference( boolean unique, IndexCapability indexCapability,
IndexProvider.Descriptor providerDescriptor, int label, int... properties )
{
this.unique = unique;
this.capability = indexCapability;
this.label = label;
this.providerDescriptor = providerDescriptor;
this.properties = properties;
}
@Override
public boolean isUnique()
{
return unique;
}
@Override
public int label()
{
return label;
}
@Override
public int[] properties()
{
return properties;
}
@Override
public String providerKey()
{
return providerDescriptor.getKey();
}
@Override
public String providerVersion()
{
return providerDescriptor.getVersion();
}
@Override
public IndexOrder[] orderCapability( ValueCategory... valueCategories )
{
return capability.orderCapability( valueCategories );
}
@Override
public IndexValueCapability valueCapability( ValueCategory... valueCategories )
{
return capability.valueCapability( valueCategories );
}
@Override
public boolean equals( Object o )
{
if ( this == o )
{
return true;
}
if ( !(o instanceof IndexReference) )
{
return false;
}
IndexReference that = (IndexReference) o;
return label == that.label() && unique == that.isUnique() && Arrays.equals( properties, that.properties() );
}
@Override
public String toString()
{
return String.format( "Index(%d:%s)", label, Arrays.toString( properties ) );
}
@Override
public int hashCode()
{
int result = label;
result = 31 * result + Arrays.hashCode( properties );
result = 31 * result + (unique ? 1 : 0);
result = 31 * result + (providerDescriptor != null ? providerDescriptor.hashCode() : 0);
return result;
}
public static CapableIndexReference fromDescriptor( IndexDescriptor descriptor )
{
boolean unique = descriptor.type() == IndexDescriptor.Type.UNIQUE;
final SchemaDescriptor schema = descriptor.schema();
return new DefaultCapableIndexReference( unique, IndexCapability.NO_CAPABILITY, IndexProvider.UNDECIDED,
schema.keyId(), schema.getPropertyIds() );
}
}