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dynamic sql engine tool

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package io.github.wujun728.sql.node;

import java.util.Set;

import io.github.wujun728.sql.context.Context;


public class IfSqlNode implements SqlNode {

    String test;

    SqlNode contents;

    public IfSqlNode(String test, SqlNode contents) {
        this.test = test;
        this.contents = contents;
    }

    @Override
    public void apply(Context context) {
        Boolean value = context.getOgnlBooleanValue(test);
        if (value) {
            context.appendSql(" ");//标签类SqlNode先拼接空格，和前面的内容隔开
            contents.apply(context);
        }

    }

    @Override
    public void applyParameter(Set set) {
        contents.applyParameter(set);
    }
}