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Groovy example source code file (GenericsType.java)

This example Groovy source code file (GenericsType.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

astnode, astnode, classnode, classnode, genericstype, genericstype, string, string

The Groovy GenericsType.java source code

/*
 * Copyright 2003-2011 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.codehaus.groovy.ast;

/**
 * This class is used to describe generic type signatures for ClassNodes.
 *
 * @author Jochen Theodorou
 * @see ClassNode
 */
public class GenericsType extends ASTNode {
    private final ClassNode[] upperBounds;
    private final ClassNode lowerBound;
    private ClassNode type;
    private String name;
    private boolean placeholder;
    private boolean resolved;
    private boolean wildcard;

    public GenericsType(ClassNode type, ClassNode[] upperBounds, ClassNode lowerBound) {
        this.type = type;
        this.name = type.isGenericsPlaceHolder() ? type.getUnresolvedName() : type.getName();
        this.upperBounds = upperBounds;
        this.lowerBound = lowerBound;
        placeholder = type.isGenericsPlaceHolder();
        resolved = false;
    }

    public GenericsType(ClassNode basicType) {
        this(basicType, null, null);
    }

    public ClassNode getType() {
        return type;
    }

    public void setType(ClassNode type) {
        this.type = type;
    }

    public String toString() {
        String ret = (type == null || placeholder || wildcard) ? name : type.getName();
        if (upperBounds != null) {
            ret += " extends ";
            for (int i = 0; i < upperBounds.length; i++) {
                ret += upperBounds[i].getName();
                if (i + 1 < upperBounds.length) ret += " & ";
            }
        } else if (lowerBound != null) {
            ret += " super " + lowerBound.getName();
        }
        return ret;
    }

    public ClassNode[] getUpperBounds() {
        return upperBounds;
    }

    public String getName() {
        return name;
    }

    public boolean isPlaceholder() {
        return placeholder;
    }

    public void setPlaceholder(boolean placeholder) {
        this.placeholder = placeholder;
        type.setGenericsPlaceHolder(placeholder);
    }

    public boolean isResolved() {
        return resolved || placeholder;
    }

    public void setResolved(boolean res) {
        resolved = res;
    }

    public void setName(String name) {
        this.name = name;
    }

    public boolean isWildcard() {
        return wildcard;
    }

    public void setWildcard(boolean wildcard) {
        this.wildcard = wildcard;
    }

    public ClassNode getLowerBound() {
        return lowerBound;
    }
}

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