com.sun.tools.xjc.outline.FieldAccessor Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.tools.xjc.outline;
import com.sun.codemodel.JBlock;
import com.sun.codemodel.JExpression;
import com.sun.codemodel.JVar;
import com.sun.tools.xjc.model.CPropertyInfo;
/**
* Encapsulates the access on a field.
*
* @author
* Kohsuke Kawaguchi ([email protected])
*/
public interface FieldAccessor {
/**
* Dumps everything in this field into the given variable.
*
*
* This generates code that accesses the field from outside.
*
* @param block
* The code will be generated into this block.
* @param $var
* Variable whose type is {@link FieldOutline#getRawType()}
*/
void toRawValue( JBlock block, JVar $var );
/**
* Sets the value of the field from the specified expression.
*
*
* This generates code that accesses the field from outside.
*
* @param block
* The code will be generated into this block.
* @param uniqueName
* Identifier that the caller guarantees to be unique in
* the given block. When the callee needs to produce additional
* variables, it can do so by adding suffixes to this unique
* name. For example, if the uniqueName is "abc", then the
* caller guarantees that any identifier "abc.*" is unused
* in this block.
* @param $var
* The expression that evaluates to a value of the type
* {@link FieldOutline#getRawType()}.
*/
void fromRawValue( JBlock block, String uniqueName, JExpression $var );
/**
* Generates a code fragment to remove any "set" value
* and move this field to the "unset" state.
*
* @param body
* The code will be appended at the end of this block.
*/
void unsetValues( JBlock body );
/**
* Return an expression that evaluates to true only when
* this field has a set value(s).
*
* @return null
* if the isSetXXX/unsetXXX method does not make sense
* for the given field.
*/
JExpression hasSetValue();
/**
* Gets the {@link FieldOutline} from which
* this object is created.
*/
FieldOutline owner();
/**
* Short for {@code owner().getPropertyInfo()}
*/
CPropertyInfo getPropertyInfo();
}