diff --git a/src/main/java/de/ids_mannheim/korap/query/DistanceConstraint.java b/src/main/java/de/ids_mannheim/korap/query/DistanceConstraint.java
index 11e330b..6a0668f 100644
--- a/src/main/java/de/ids_mannheim/korap/query/DistanceConstraint.java
+++ b/src/main/java/de/ids_mannheim/korap/query/DistanceConstraint.java
@@ -1,78 +1,89 @@
 package de.ids_mannheim.korap.query;
 
-/**	Specify distance constraints in SpanDistanceQueries or 
- * 	SpanMultipleDistanceQueries
- * 	 
- * 	@author margaretha
+/**
+ * Specify distance constraints in SpanDistanceQueries or
+ * SpanMultipleDistanceQueries
+ * 
+ * 
+ * 
+ * @author margaretha
  * */
 
 public class DistanceConstraint {
-	private int minDistance, maxDistance;
-	private String unit;
-	private SpanElementQuery elementQuery;
-	private boolean exclusion;
-	private boolean isOrdered;
-	
-	public DistanceConstraint(int min, int max, boolean isOrdered, boolean exclusion) {
-		this.unit = "w";
-		this.minDistance = min;
-		this.maxDistance = max;
-		this.isOrdered = isOrdered;
-		this.exclusion = exclusion;		
-	}
-	
-	public DistanceConstraint(SpanElementQuery elementQuery, int min, int max, boolean 
-			isOrdered, boolean exclusion) {
-		if (elementQuery == null){
-			throw new IllegalArgumentException("Element query cannot be null.");
-		}
-		
-		this.unit = elementQuery.getElementStr();
-		this.minDistance = min;
-		this.maxDistance = max;
-		this.isOrdered = isOrdered;
-		this.exclusion = exclusion;
-		this.elementQuery = elementQuery;
-	}
-	
-	public int getMinDistance() {
-		return minDistance;
-	}
-	public void setMinDistance(int minDistance) {
-		this.minDistance = minDistance;
-	}
-	public int getMaxDistance() {
-		return maxDistance;
-	}
-	public void setMaxDistance(int maxDistance) {
-		this.maxDistance = maxDistance;
-	}
-	public String getUnit() {
-		return unit;
-	}
-	public void setUnit(String unit) {
-		this.unit = unit;
-	}
-	public SpanElementQuery getElementQuery() {
-		return elementQuery;
-	}
-	public void setElementQuery(SpanElementQuery elementQuery) {
-		this.elementQuery = elementQuery;
-	}
+    private int minDistance, maxDistance;
+    private String unit;
+    private SpanElementQuery elementQuery;
+    private boolean exclusion;
+    private boolean isOrdered;
 
-	public boolean isExclusion() {
-		return exclusion;
-	}
+    public DistanceConstraint(int min, int max, boolean isOrdered,
+            boolean exclusion) {
+        this.unit = "w";
+        this.minDistance = min;
+        this.maxDistance = max;
+        this.isOrdered = isOrdered;
+        this.exclusion = exclusion;
+    }
 
-	public void setExclusion(boolean exclusion) {
-		this.exclusion = exclusion;
-	}
+    public DistanceConstraint(SpanElementQuery elementQuery, int min, int max,
+            boolean isOrdered, boolean exclusion) {
+        if (elementQuery == null) {
+            throw new IllegalArgumentException("Element query cannot be null.");
+        }
 
-	public boolean isOrdered() {
-		return isOrdered;
-	}
+        this.unit = elementQuery.getElementStr();
+        this.minDistance = min;
+        this.maxDistance = max;
+        this.isOrdered = isOrdered;
+        this.exclusion = exclusion;
+        this.elementQuery = elementQuery;
+    }
 
-	public void setOrdered(boolean isOrdered) {
-		this.isOrdered = isOrdered;
-	}
+    public int getMinDistance() {
+        return minDistance;
+    }
+
+    public void setMinDistance(int minDistance) {
+        this.minDistance = minDistance;
+    }
+
+    public int getMaxDistance() {
+        return maxDistance;
+    }
+
+    public void setMaxDistance(int maxDistance) {
+        this.maxDistance = maxDistance;
+    }
+
+    public String getUnit() {
+        return unit;
+    }
+
+    public void setUnit(String unit) {
+        this.unit = unit;
+    }
+
+    public SpanElementQuery getElementQuery() {
+        return elementQuery;
+    }
+
+    public void setElementQuery(SpanElementQuery elementQuery) {
+        this.elementQuery = elementQuery;
+    }
+
+    public boolean isExclusion() {
+        return exclusion;
+    }
+
+    public void setExclusion(boolean exclusion) {
+        this.exclusion = exclusion;
+    }
+
+    public boolean isOrdered() {
+        return isOrdered;
+    }
+
+    public void setOrdered(boolean isOrdered) {
+        this.isOrdered = isOrdered;
+    }
 }