gt: 		final Field[] arr = block.getFieldsByName(NAME);
context: 
  /* 
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   * 
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   * 
   */
  package com.prowidesoftware.swift.model.field;
  
  import java.io.Serializable;
  
  import org.apache.commons.lang.StringUtils;
  
  import com.prowidesoftware.swift.model.*;
  import com.prowidesoftware.swift.utils.SwiftFormatUtils;
  
  
  /**
   * Field 17A<br /><br />
   *
   * validation pattern: 1a<br />
   * parser pattern: S<br />
   * components pattern: S<br />
   *
   * <h1>Components Data types</h1>
   * <ul> 
   * 		<li>component1: <code>String</code></li> 
   * </ul>
   *		 
   * <em>NOTE: this source code has been generated from template</em>
   *
   * @author www.prowidesoftware.com
   *
   */
  @SuppressWarnings("unused") 
  public class Field17A extends Field implements Serializable  {
  	private static final long serialVersionUID = 1L;
  	/**
  	 * Constant with the field name 17A
  	 */
      public static final String NAME = "17A";
      /**
       * same as NAME, intended to be clear when using static imports
       */
      public static final String F_17A = "17A";
  	public static final String PARSER_PATTERN ="S";
  	public static final String COMPONENTS_PATTERN = "S";
  
  	/**
  	* Create a Tag with this field name and the given value.
  	* Shorthand for <code>new Tag(NAME, value)</code>
  	* @see #NAME
  	* @since 7.5
  	*/
  	public static Tag tag(final String value) {
  		return new Tag(NAME, value);
  	}
  
  	/**
  	* Create a Tag with this field name and an empty string as value
  	* Shorthand for <code>new Tag(NAME, "")</code>
  	* @see #NAME
  	* @since 7.5
  	*/
  	public static Tag emptyTag() {
  		return new Tag(NAME, "");
  	}
  
  
  	/**
  	 * Default constructor
  	 */
  	public Field17A() {
  		super(1);
  	}
  	    					
  	/**
  	 * Creates the field parsing the parameter value into fields' components
  	 * @param value
  	 */
  	public Field17A(String value) {
  		this();
  
  		setComponent1(value);
  	}
  	
  	/**
  	 * Serializes the fields' components into the single string value (SWIFT format)
  	 */
  	@Override
  	public String getValue() {
  		final StringBuilder result = new StringBuilder();
  		result.append(StringUtils.trimToEmpty(getComponent1()));
  		return result.toString();
  	}
  
  
  	/**
  	 * Get the component1
  	 * @return the component1
  	 */
  	public String getComponent1() {
  		return getComponent(1);
  	}
  
  	/**
  	 * Same as getComponent(1)
  	 */
  	@Deprecated
  	public java.lang.String getComponent1AsString() {
  		return getComponent(1);
  	}
  
  	/**
  	 * Get the Indicator (component1).
  	 * @return the Indicator from component1
  	 */
  	public String getIndicator() {
  		return getComponent(1);
  	}
  
  	/**
  	 * Set the component1.
  	 * @param component1 the component1 to set
  	 */
  	public Field17A setComponent1(String component1) {
  		setComponent(1, component1);
  		return this;
  	}
  	
  	/**
  	 * Set the Indicator (component1).
  	 * @param component1 the Indicator to set
  	 */
  	public Field17A setIndicator(String component1) {
  		setComponent(1, component1);
  		return this;
  	}
  
     /**
      * Given a component number it returns true if the component is optional,
      * regardless of the field being mandatory in a particular message.<br />
      * Being the field's value conformed by a composition of one or several 
      * internal component values, the field may be present in a message with
      * a proper value but with some of its internal components not set.
      *
      * @param component component number, first component of a field is referenced as 1
      * @return true if the component is optional for this field, false otherwise
      */
     @Override
     public boolean isOptional(int component) {   
         return false;
     }
  
     /**
      * Returns true if the field is a GENERIC FIELD as specified by the standard.
      *
      * @return true if the field is generic, false otherwise
      */
     @Override
     public boolean isGeneric() {   
         return false;
     }
     
     public String componentsPattern() {
             return COMPONENTS_PATTERN;
     }
  
     public String parserPattern() {
             return PARSER_PATTERN;
     }
  
  	/**
  	* @deprecated use constant Field17A	*/
  	@Override
  	public String getName() {
  		return NAME;
  	}
  	
  	/**
  	* Get the first occurrence form the tag list or null if not found.
  	* @returns null if not found o block is null or empty
  	* @param block may be null or empty 
  	*/
  	public static Field17A get(final SwiftTagListBlock block) {
  		if (block == null || block.isEmpty()) {
  			return null;
  		}
  		return (Field17A) block.getFieldByName(NAME);
  	}
  	
  	/**
  	 * Get the first instance of Field17A in the given message.
  	 * @param msg may be empty or null
  	 * @returns null if not found or msg is empty or null
  	 * @see 	 */
  	public static Field17A get(final SwiftMessage msg) {
  		if (msg == null || msg.getBlock4()==null || msg.getBlock4().isEmpty())
  			return null;
  		return get(msg.getBlock4());
  	}
  
  	/**
  	 * Get a list of all occurrences of the field Field17A in the given message
  	 * an empty list is returned if none found.
  	 * @param msg may be empty or null in which case an empty list is returned
  	 * @see 	 */ 
  	public static java.util.List<Field17A> getAll(final SwiftMessage msg) {
  		if (msg == null || msg.getBlock4()==null || msg.getBlock4().isEmpty())
  			return null;
  		return getAll(msg.getBlock4());
  	}
  
  	/**
  	 * Get a list of all occurrences of the field Field17A from the given block
  	 * an empty list is returned if none found.
  	 *
  	 * @param block may be empty or null in which case an empty list is returned 
  	 */ 
  	public static java.util.List<Field17A> getAll(final SwiftTagListBlock block) {
  		if (block == null || block.isEmpty()) {
  			return null;
  		}
  