Quelle MethodReference.java Sprache: JAVA

/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 jakarta.el;

import java.lang.annotation.Annotation;
import java.util.Arrays;

/**
* Provides information about the method to which a method expression resolves.
*
* @since EL 5.0
*/
public class MethodReference {

    private final Object base;
    private final MethodInfo methodInfo;
    private final Annotation[] annotations;
    private final Object[] evaluatedParameters;

    public MethodReference(Object base, MethodInfo methodInfo, Annotation[] annotations, Object[] evaluatedParameters) {
        this.base = base;
        this.methodInfo = methodInfo;
        this.annotations = annotations;
        this.evaluatedParameters = evaluatedParameters;
    }

    /**
     * Obtain the base object on which the method will be invoked.
     *
     * @return The base object on which the method will be invoked or {@code null} for literal method expressions.
     */
    public Object getBase() {
        return base;
    }

    /**
     * Obtain the {@link MethodInfo} for the {@link MethodExpression} for which this {@link MethodReference} has been
     * generated.
     *
     * @return The {@link MethodInfo} for the {@link MethodExpression} for which this {@link MethodReference} has been
     *             generated.
     */
    public MethodInfo getMethodInfo() {
        return this.methodInfo;
    }

    /**
     * Obtain the annotations on the method to which the associated expression resolves.
     *
     * @return The annotations on the method to which the associated expression resolves. If the are no annotations,
     *             then an empty array is returned.
     */
    public Annotation[] getAnnotations() {
        return annotations;
    }

    /**
     * Obtain the evaluated parameter values that will be passed to the method to which the associated expression
     * resolves.
     *
     * @return The evaluated parameters.
     */
    public Object[] getEvaluatedParameters() {
        return evaluatedParameters;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + Arrays.hashCode(annotations);
        result = prime * result + ((base == null) ? 0 : base.hashCode());
        result = prime * result + Arrays.deepHashCode(evaluatedParameters);
        result = prime * result + ((methodInfo == null) ? 0 : methodInfo.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        MethodReference other = (MethodReference) obj;
        if (!Arrays.equals(annotations, other.annotations)) {
            return false;
        }
        if (base == null) {
            if (other.base != null) {
                return false;
            }
        } else if (!base.equals(other.base)) {
            return false;
        }
        if (!Arrays.deepEquals(evaluatedParameters, other.evaluatedParameters)) {
            return false;
        }
        if (methodInfo == null) {
            if (other.methodInfo != null) {
                return false;
            }
        } else if (!methodInfo.equals(other.methodInfo)) {
            return false;
        }
        return true;
    }
}

quality100%

¤ Dauer der Verarbeitung: 0.15 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.