org.flowable.engine.impl.el.JuelExpression Maven / Gradle / Ivy
/* 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 org.flowable.engine.impl.el;
import org.flowable.common.engine.impl.el.ExpressionManager;
import org.flowable.common.engine.impl.javax.el.ELContext;
import org.flowable.common.engine.impl.javax.el.ValueExpression;
import org.flowable.engine.impl.delegate.invocation.ExpressionGetInvocation;
import org.flowable.engine.impl.delegate.invocation.ExpressionSetInvocation;
import org.flowable.engine.impl.interceptor.DelegateInterceptor;
import org.flowable.engine.impl.util.CommandContextUtil;
/**
* Expression implementation backed by a JUEL {@link ValueExpression}.
*
* @author Frederik Heremans
* @author Joram Barrez
*/
public class JuelExpression extends org.flowable.common.engine.impl.el.JuelExpression {
private static final long serialVersionUID = 1L;
protected DelegateInterceptor delegateInterceptor;
public JuelExpression(ExpressionManager expressionManager, DelegateInterceptor delegateInterceptor, ValueExpression valueExpression, String expressionText) {
super(expressionManager, valueExpression, expressionText);
this.delegateInterceptor = delegateInterceptor;
}
@Override
protected Object resolveGetValueExpression(ELContext elContext) {
ExpressionGetInvocation invocation = new ExpressionGetInvocation(valueExpression, elContext);
delegateInterceptor.handleInvocation(invocation);
return invocation.getInvocationResult();
}
@Override
protected void resolveSetValueExpression(Object value, ELContext elContext) {
ExpressionSetInvocation invocation = new ExpressionSetInvocation(valueExpression, elContext, value);
CommandContextUtil.getProcessEngineConfiguration().getDelegateInterceptor().handleInvocation(invocation);
}
}