/*
 * Copyright 1999-2017 Alibaba Group Holding Ltd.
 *
 * 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 com.alibaba.druid.sql.dialect.oracle.ast.expr;

import com.alibaba.druid.sql.ast.SQLExpr;
import com.alibaba.druid.sql.ast.SQLObject;
import com.alibaba.druid.sql.dialect.oracle.ast.OracleSQLObjectImpl;
import com.alibaba.druid.sql.dialect.oracle.visitor.OracleASTVisitor;

import java.util.Arrays;
import java.util.List;

public class OracleTreatExpr extends OracleSQLObjectImpl implements SQLExpr {
    private SQLExpr expr;
    private SQLExpr type;
    private boolean ref;

    public SQLExpr getExpr() {
        return expr;
    }

    public void setExpr(SQLExpr expr) {
        if (expr != null) {
            expr.setParent(this);
        }
        this.expr = expr;
    }

    public SQLExpr getType() {
        return type;
    }

    public void setType(SQLExpr type) {
        if (type != null) {
            type.setParent(this);
        }
        this.type = type;
    }

    public boolean isRef() {
        return ref;
    }

    public void setRef(boolean ref) {
        this.ref = ref;
    }

    @Override
    public void accept0(OracleASTVisitor visitor) {
        if (visitor.visit(this)) {
            acceptChild(visitor, expr);
            acceptChild(visitor, type);
        }
        visitor.endVisit(this);
    }

    public List<SQLObject> getChildren() {
        return Arrays.<SQLObject>asList(this.expr, this.type);
    }

    public OracleTreatExpr clone() {
        OracleTreatExpr x = new OracleTreatExpr();

        if (expr != null) {
            x.setExpr(expr.clone());
        }

        if (type != null) {
            x.setType(type.clone());
        }

        x.ref = ref;

        return x;
    }
}
