1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.databinding.tool.expr;
18
19import android.databinding.tool.writer.KCode;
20
21public class StaticIdentifierExpr extends IdentifierExpr {
22
23    StaticIdentifierExpr(String name) {
24        super(name);
25    }
26
27    @Override
28    public boolean isObservable() {
29        return false;
30    }
31
32    @Override
33    public boolean isDynamic() {
34        return false;
35    }
36
37    @Override
38    public String getInvertibleError() {
39        return "Class " + getResolvedType().toJavaCode() +
40                " may not be the target of a two-way binding expression";
41    }
42
43    @Override
44    public Expr generateInverse(ExprModel model, Expr value, String bindingClassName) {
45        throw new IllegalStateException("StaticIdentifierExpr is not invertible.");
46    }
47
48    @Override
49    protected KCode generateCode() {
50        return new KCode(getResolvedType().toJavaCode());
51    }
52
53    @Override
54    public Expr cloneToModel(ExprModel model) {
55        return model.staticIdentifier(mName);
56    }
57}
58