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Neo4j kernel is a lightweight, embedded Java database designed to store data structured as graphs rather than tables. For more information, see http://neo4j.org.

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/*
 * Copyright (c) "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 .
 */
package org.neo4j.kernel.api.exceptions.schema;

import org.neo4j.common.TokenNameLookup;
import org.neo4j.internal.kernel.api.exceptions.schema.ConstraintValidationException;
import org.neo4j.internal.schema.ConstraintDescriptor;

import static java.lang.String.format;

/**
 * Attempting to validate constraints, but the apparatus for validation was not available. For example,
 * this exception is thrown when an index required to implement a uniqueness constraint is not available.
 */
public class UnableToValidateConstraintException extends ConstraintValidationException
{
    public UnableToValidateConstraintException( ConstraintDescriptor constraint, Throwable cause, TokenNameLookup tokenNameLookup )
    {
        super( constraint, Phase.VERIFICATION,
                format( "Unable to validate constraint %s", constraint.userDescription( tokenNameLookup ) ), cause, tokenNameLookup );
    }

    @Override
    public String getUserMessage( TokenNameLookup tokenNameLookup )
    {
        return format( "Unable to validate constraint %s", constraint.userDescription( tokenNameLookup ) );
    }
}