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package org.vertexium.cypher.functions.predicate;

import org.vertexium.cypher.VertexiumCypherQueryContext;
import org.vertexium.cypher.functions.SimpleCypherFunction;

import static org.vertexium.cypher.functions.FunctionUtils.assertArgumentCount;

public class ExistsFunction extends SimpleCypherFunction {
    @Override
    protected Object executeFunction(VertexiumCypherQueryContext ctx, Object[] arguments) {
        assertArgumentCount(arguments, 1);
        return arguments[0] != null;
    }
}