| /******************************************************************************* |
| * Copyright (c) 2000, 2011 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.debug.core; |
| |
| import org.eclipse.debug.core.DebugException; |
| import org.eclipse.debug.core.model.IValue; |
| |
| /** |
| * An object, primitive data type, or array, on a Java virtual machine. |
| * |
| * @see org.eclipse.debug.core.model.IValue |
| * @noimplement This interface is not intended to be implemented by clients. |
| * @noextend This interface is not intended to be extended by clients. |
| */ |
| public interface IJavaValue extends IValue { |
| /** |
| * Returns the JNI-style signature for the type of this value, or |
| * <code>null</code> if the value is <code>null</code>. |
| * |
| * @return signature, or <code>null</code> if signature is <code>null</code> |
| * @exception DebugException |
| * if this method fails. Reasons include: |
| * <ul> |
| * <li>Failure communicating with the VM. The |
| * DebugException's status code contains the underlying |
| * exception responsible for the failure.</li> |
| * <li>The type associated with the signature is not yet |
| * loaded</li> |
| * </ul> |
| */ |
| public String getSignature() throws DebugException; |
| |
| /** |
| * Returns the generic signature as defined in the JVM specification for the |
| * type of this value. Returns <code>null</code> if the value is |
| * <code>null</code>, or if the type of this value is not a generic type. |
| * |
| * @return signature, or <code>null</code> if generic signature not |
| * available |
| * @exception DebugException |
| * if this method fails. Reasons include: |
| * <ul> |
| * <li>Failure communicating with the VM. The |
| * DebugException's status code contains the underlying |
| * exception responsible for the failure.</li> |
| * <li>The type associated with the signature is not yet |
| * loaded</li> |
| * </ul> |
| * @since 3.1 |
| */ |
| public String getGenericSignature() throws DebugException; |
| |
| /** |
| * Returns the type of this value, or <code>null</code> if this value |
| * represents the <code>null</code> value |
| * |
| * @return the type of this value, or <code>null</code> if this value |
| * represents the <code>null</code> value |
| * @throws DebugException |
| * if the request fails |
| * |
| * @since 2.0 |
| */ |
| public IJavaType getJavaType() throws DebugException; |
| |
| /** |
| * Returns whether this value represents <code>null</code>. |
| * |
| * @return whether this value represents <code>null</code> |
| * @since 3.5 |
| */ |
| public boolean isNull(); |
| |
| } |