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package org.eclipse.jdt.internal.core;
/*
* (c) Copyright IBM Corp. 2000, 2001.
* All Rights Reserved.
*/
import org.eclipse.core.resources.*;
import org.eclipse.jdt.core.*;
import org.eclipse.jdt.core.jdom.*;
/**
* <p>This operation creates a field declaration in a type.
*
* <p>Required Attributes:<ul>
* <li>Containing Type
* <li>The source code for the declaration. No verification of the source is
* performed.
* </ul>
*/
public class CreateFieldOperation extends CreateTypeMemberOperation {
/**
* When executed, this operation will create a field with the given name
* in the given type with the specified source.
*
* <p>By default the new field is positioned after the last existing field
* declaration, or as the first member in the type if there are no
* field declarations.
*/
public CreateFieldOperation(IType parentElement, String source, boolean force) {
super(parentElement, source, force);
}
/**
* @see CreateTypeMemberOperation#generateElementDOM
*/
protected IDOMNode generateElementDOM() throws JavaModelException {
if (fDOMNode == null) {
fDOMNode = (new DOMFactory()).createField(fSource);
if (fDOMNode == null) {
fDOMNode = generateSyntaxIncorrectDOM();
}
if (fAlteredName != null && fDOMNode != null) {
fDOMNode.setName(fAlteredName);
}
}
return fDOMNode;
}
/**
* @see CreateElementInCUOperation#generateResultHandle
*/
protected IJavaElement generateResultHandle() {
return getType().getField(fDOMNode.getName());
}
/**
* @see CreateElementInCUOperation#getMainTaskName
*/
public String getMainTaskName(){
return "Creating a field...";
}
/**
* By default the new field is positioned after the last existing field
* declaration, or as the first member in the type if there are no
* field declarations.
*/
protected void initializeDefaultPosition() {
IType parentElement = getType();
try {
IJavaElement[] elements = parentElement.getFields();
if (elements != null && elements.length > 0) {
createAfter(elements[elements.length - 1]);
} else {
elements = parentElement.getChildren();
if (elements != null && elements.length > 0) {
createBefore(elements[0]);
}
}
} catch (JavaModelException e) {
}
}
/**
* @see CreateTypeMemberOperation#verifyNameCollision
*/
protected IJavaModelStatus verifyNameCollision() {
IType type= getType();
if (type.getField(fDOMNode.getName()).exists()) {
return new JavaModelStatus(IJavaModelStatusConstants.NAME_COLLISION);
}
return JavaModelStatus.VERIFIED_OK;
}
}
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