/*******************************************************************************
* Copyright (c) 2006 Oracle Corporation.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Gerry Kessler/Oracle - initial API and implementation
*
********************************************************************************/
package org.eclipse.jst.jsf.taglibprocessing.attributevalues;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jdt.core.Signature;
import org.eclipse.jst.jsf.common.internal.types.CompositeType;
import org.eclipse.jst.jsf.common.internal.types.IAssignable;
import org.eclipse.jst.jsf.core.internal.JSFCorePlugin;
import org.eclipse.jst.jsf.metadataprocessors.features.ELIsNotValidException;
import org.eclipse.jst.jsf.metadataprocessors.features.IValidELValues;
import org.eclipse.jst.jsf.metadataprocessors.features.IValidValues;
import org.eclipse.jst.jsf.metadataprocessors.features.IValidationMessage;
import org.eclipse.jst.jsf.metadataprocessors.features.ValidationMessage;
/**
* Meta-data processing type representing an method-binding attribute value runtime type
*
* <p><b>Provisional API - subject to change</b></p>
* @author Gerry Kessler - Oracle
*/
public class MethodBindingType extends ExpressionBindingType implements IValidELValues, IValidValues{
/* (non-Javadoc)
* @see org.eclipse.jst.jsf.metadataprocessors.features.IValidELValues#getExpectedRuntimeType()
*/
public CompositeType getExpectedRuntimeType() throws ELIsNotValidException {
String[] params = getParams();
// need to "signaturize" each parameter
for (int param = 0; param < params.length; param++)
{
params[param] = Signature.createTypeSignature(params[param],true);
}
final String runtimeType = getReturnType();
String returnTypeSignature = null;
if (runtimeType != null)
{
returnTypeSignature = Signature.createTypeSignature(runtimeType, true);
}
else
{
JSFCorePlugin.log(IStatus.INFO, "Missing metadata for trait "+RUNTIME_RETURN_TYPE+" for entity "+getMetaDataContext().getEntity()); //$NON-NLS-1$ //$NON-NLS-2$
}
if (returnTypeSignature == null)
{
return null;
}
String methodSig = Signature.createMethodSignature(params, returnTypeSignature);
return new CompositeType(methodSig, IAssignable.ASSIGNMENT_TYPE_NONE);
}
/**
* Non-EL values are invalid for method bound attribute values
* @see org.eclipse.jst.jsf.metadataprocessors.features.IValidValues#isValidValue(java.lang.String)
*/
public boolean isValidValue(String value) {
//if this is being called, we are being called in an non-EL context which is invalid.
IValidationMessage msg = new ValidationMessage(Messages.MethodBindingType_invalid_value);
getValidationMessages().add(msg);
return false;
}
}