org.swrlapi.factory.DefaultSQWRLExpressionResultValue Maven / Gradle / Ivy

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Java API for working with SWRL rules and SQWRL queries

There is a newer version: 2.1.2

package org.swrlapi.factory;

import org.checkerframework.checker.nullness.qual.NonNull;
import org.swrlapi.sqwrl.exceptions.SQWRLException;
import org.swrlapi.sqwrl.values.SQWRLExpressionResultValue;

abstract class DefaultSQWRLExpressionResultValue extends DefaultSQWRLResultValue implements SQWRLExpressionResultValue
{
  @NonNull private final String rendering;

  public DefaultSQWRLExpressionResultValue(@NonNull String rendering)
  {
    this.rendering = rendering;
  }

  @NonNull @Override public String getRendering()
  {
    return this.rendering;
  }

  @Override public boolean isExpression() { return true; }

  @NonNull @Override public SQWRLExpressionResultValue asExpressionResult() throws SQWRLException
  {
    return this;
  }

  @Override public int compareTo(@NonNull SQWRLExpressionResultValue o)
  {
    if (o == null)
      throw new NullPointerException();

    return this.rendering.compareTo(o.getRendering()); // We simply sort alphabetically
  }
}