/*
* Copyright 2011 The authors
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.lang.ognl.psi;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiType;
import org.jetbrains.annotations.Nullable;
/**
* @author Yann Cébron
*/
public interface OgnlExpression extends PsiElement {
/**
* (Result) type of expression.
*
* @return {@code null} if not determinable.
*/
@Nullable
PsiType getType();
/**
* Constant value of expression (if any).
*
* @return {@code null} if non-constant or not determinable.
*/
@Nullable
Object getConstantValue();
}