drools-eclipse/org.drools.eclipse/src/main/java/org/drools/eclipse/editors/rete/RowList.java
public void dump() {
        final int numRows = this.rows.size();

        for ( int i = 0; i < numRows; ++i ) {
            System.err.println( i + ": " + get( i ).getVertices() );
        }
    }
public void dump() {
        final int numRows = this.rows.size();

        for ( int i = 0; i < numRows; ++i ) {
            System.err.println( i + ": " + get( i ).getVertices() );
        }
    }
Dumps all row vertices to System.err