# Coalesce.java

    package org.codefilarete.stalactite.query.model.operator;

    import org.codefilarete.stalactite.query.model.Selectable;
    import org.codefilarete.tool.collection.Arrays;

    /**
     * Implementation of coalesce SQL function (returns first non-null arguments)
     *
     * @param <V> value type
     * @author Guillaume Mary
     */
    public class Coalesce<V> extends SQLFunction<Iterable<Object>, V> {

    	public Coalesce(Selectable<V> column, Object... arguments) {
    		this(column.getJavaType(), Arrays.cat(new Object[] { column }, arguments));
    	}

    	public Coalesce(Class<V> javaType, Object... arguments) {
    		super("coalesce", javaType, Arrays.asList(arguments));
    	}
    }