org.eclipse.jdt.internal.core.JavaElementRequestor Maven / Gradle / Ivy
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/*******************************************************************************
* Copyright (c) 2000, 2013 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.internal.core;
import java.util.ArrayList;
import org.eclipse.jdt.core.IField;
import org.eclipse.jdt.core.IInitializer;
import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.IModuleDescription;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IType;
/**
* @see IJavaElementRequestor
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
public class JavaElementRequestor implements IJavaElementRequestor {
/**
* True if this requestor no longer wants to receive
* results from its IRequestorNameLookup
.
*/
protected boolean canceled= false;
/**
* A collection of the resulting fields, or null
* if no field results have been received.
*/
protected ArrayList fields= null;
/**
* A collection of the resulting initializers, or null
* if no initializer results have been received.
*/
protected ArrayList initializers= null;
/**
* A collection of the resulting member types, or null
* if no member type results have been received.
*/
protected ArrayList memberTypes= null;
/**
* A collection of the resulting methods, or null
* if no method results have been received.
*/
protected ArrayList methods= null;
/**
* A collection of the resulting package fragments, or null
* if no package fragment results have been received.
*/
protected ArrayList packageFragments= null;
/**
* A collection of the resulting types, or null
* if no type results have been received.
*/
protected ArrayList types= null;
/**
* A collection of the resulting modules, or null
* if no module results have been received
*/
protected ArrayList modules = null;
/**
* Empty arrays used for efficiency
*/
protected static final IField[] EMPTY_FIELD_ARRAY= new IField[0];
protected static final IInitializer[] EMPTY_INITIALIZER_ARRAY= new IInitializer[0];
protected static final IType[] EMPTY_TYPE_ARRAY= new IType[0];
protected static final IPackageFragment[] EMPTY_PACKAGE_FRAGMENT_ARRAY= new IPackageFragment[0];
protected static final IMethod[] EMPTY_METHOD_ARRAY= new IMethod[0];
protected static final IModuleDescription[] EMPTY_MODULE_ARRAY= new IModuleDescription[0];
/**
* @see IJavaElementRequestor
*/
@Override
public void acceptField(IField field) {
if (this.fields == null) {
this.fields= new ArrayList();
}
this.fields.add(field);
}
/**
* @see IJavaElementRequestor
*/
@Override
public void acceptInitializer(IInitializer initializer) {
if (this.initializers == null) {
this.initializers= new ArrayList();
}
this.initializers.add(initializer);
}
/**
* @see IJavaElementRequestor
*/
@Override
public void acceptMemberType(IType type) {
if (this.memberTypes == null) {
this.memberTypes= new ArrayList();
}
this.memberTypes.add(type);
}
/**
* @see IJavaElementRequestor
*/
@Override
public void acceptMethod(IMethod method) {
if (this.methods == null) {
this.methods = new ArrayList();
}
this.methods.add(method);
}
/**
* @see IJavaElementRequestor
*/
@Override
public void acceptPackageFragment(IPackageFragment packageFragment) {
if (this.packageFragments== null) {
this.packageFragments= new ArrayList();
}
this.packageFragments.add(packageFragment);
}
/**
* @see IJavaElementRequestor
*/
@Override
public void acceptType(IType type) {
if (this.types == null) {
this.types= new ArrayList();
}
this.types.add(type);
}
/**
* @see IJavaElementRequestor
*/
@Override
public void acceptModule(IModuleDescription module) {
if (this.modules == null) {
this.modules= new ArrayList();
}
this.modules.add(module);
}
/**
* @see IJavaElementRequestor
*/
public IField[] getFields() {
if (this.fields == null) {
return EMPTY_FIELD_ARRAY;
}
int size = this.fields.size();
IField[] results = new IField[size];
this.fields.toArray(results);
return results;
}
/**
* @see IJavaElementRequestor
*/
public IInitializer[] getInitializers() {
if (this.initializers == null) {
return EMPTY_INITIALIZER_ARRAY;
}
int size = this.initializers.size();
IInitializer[] results = new IInitializer[size];
this.initializers.toArray(results);
return results;
}
/**
* @see IJavaElementRequestor
*/
public IType[] getMemberTypes() {
if (this.memberTypes == null) {
return EMPTY_TYPE_ARRAY;
}
int size = this.memberTypes.size();
IType[] results = new IType[size];
this.memberTypes.toArray(results);
return results;
}
/**
* @see IJavaElementRequestor
*/
public IMethod[] getMethods() {
if (this.methods == null) {
return EMPTY_METHOD_ARRAY;
}
int size = this.methods.size();
IMethod[] results = new IMethod[size];
this.methods.toArray(results);
return results;
}
/**
* @see IJavaElementRequestor
*/
public IPackageFragment[] getPackageFragments() {
if (this.packageFragments== null) {
return EMPTY_PACKAGE_FRAGMENT_ARRAY;
}
int size = this.packageFragments.size();
IPackageFragment[] results = new IPackageFragment[size];
this.packageFragments.toArray(results);
return results;
}
/**
* @see IJavaElementRequestor
*/
public IType[] getTypes() {
if (this.types== null) {
return EMPTY_TYPE_ARRAY;
}
int size = this.types.size();
IType[] results = new IType[size];
this.types.toArray(results);
return results;
}
/**
* @see IJavaElementRequestor
*/
public IModuleDescription[] getModules() {
if (this.modules == null) {
return EMPTY_MODULE_ARRAY;
}
int size = this.modules.size();
IModuleDescription[] results = new IModuleDescription[size];
this.modules.toArray(results);
return results;
}
/**
* @see IJavaElementRequestor
*/
@Override
public boolean isCanceled() {
return this.canceled;
}
/**
* Reset the state of this requestor.
*/
public void reset() {
this.canceled = false;
this.fields = null;
this.initializers = null;
this.memberTypes = null;
this.methods = null;
this.packageFragments = null;
this.types = null;
}
/**
* Sets the #isCanceled state of this requestor to true or false.
*/
public void setCanceled(boolean b) {
this.canceled= b;
}
}