1 /*******************************************************************************
2 * Copyright (c) 2015 LegSem.
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the GNU Lesser Public License v2.1
5 * which accompanies this distribution, and is available at
6 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
7 *
8 * Contributors:
9 * LegSem - initial API and implementation
10 ******************************************************************************/
11 package com.legstar.coxb.impl;
12
13 import java.util.ArrayList;
14 import java.util.List;
15
16 import com.legstar.coxb.CobolElement;
17 import com.legstar.coxb.ICobolComplexBinding;
18 import com.legstar.coxb.host.HostException;
19 import com.legstar.coxb.common.CArrayBinding;
20
21 /**
22 * Generic class for alphanumeric arrays bindings.
23 *
24 */
25 public abstract class AbstractArrayAlphaNumericBinding extends CArrayBinding {
26
27 /** The current list for this array. */
28 private List < String > mList = null;
29
30 /**
31 * Constructor for a cobol element to java binding.
32 *
33 * @param bindingName the identifier for this binding
34 * @param jaxbName the name of the bound java property
35 * @param jaxbType the type of the bound java property
36 * @param cobolAnnotations the cobol annotations for this element
37 * @param parentBinding a reference to the parent binding if any
38 */
39 public AbstractArrayAlphaNumericBinding(
40 final String bindingName,
41 final String jaxbName,
42 final Class < ? > jaxbType,
43 final CobolElement cobolAnnotations,
44 final ICobolComplexBinding parentBinding) {
45 super(bindingName, jaxbName, jaxbType, cobolAnnotations, parentBinding);
46 }
47
48 /**
49 * @return the List of items
50 */
51 public List < String > getStringList() {
52 return mList;
53 }
54
55 /**
56 * @param list the items List to set
57 */
58 public void setStringList(
59 final List < String > list) {
60 mList = list;
61 }
62
63 /** {@inheritDoc} */
64 public Object getObjectValue(
65 final Class < ? > type) throws HostException {
66 if (type.equals(String.class)) {
67 return mList;
68 } else {
69 throw new HostException("Attempt to get binding " + getBindingName()
70 + " as an incompatible type " + type);
71 }
72 }
73
74 /** {@inheritDoc} */
75 @SuppressWarnings("unchecked")
76 public void setObjectValue(final Object value) throws HostException {
77 if (value == null) {
78 mList = null;
79 return;
80 }
81 if (value instanceof List) {
82 if (((List <?>) value).size() == 0) {
83 mList = new ArrayList < String >();
84 return;
85 }
86 /* We assume all items will have the same type as the first one.
87 * The unchecked cast might break at runtime. */
88 Object item = ((List <?>) value).get(0);
89 if (item instanceof String) {
90 mList = (List <String>) value;
91 return;
92 }
93 }
94 throw new HostException("Attempt to set binding " + getBindingName()
95 + " from an incompatible value " + value);
96 }
97
98 /** {@inheritDoc} */
99 public boolean isSet() {
100 return (mList != null);
101 }
102 }