java - Checking the key in a Map -


can suggest me why if condition not working in below code record has key siteid.

while (!pdsxoutrecords.isempty()) { pdsxrecord record = pdsxoutrecords.remove(0); // below if condition not working if(record.getattrs().containskey("siteid")) { system.out.println("testing"); } }

and pdsxrecord class this

public class pdsxrecord {     private string m_key;     private map<pdsxattrkey, pdsxattrvalue> m_mapattrs;  } // constructor     public pdsxrecord(string key, map<pdsxattrkey, pdsxattrvalue> mapattrs)     {         m_key = key;         m_mapattrs = mapattrs;     }      public string getkey()     {         return m_key;     }      public map<pdsxattrkey, pdsxattrvalue> getattrs()     {         return m_mapattrs;     }

below thing gets printed using record.getattrs()

{gem.2036=null, gem.2037=null, gem.2038=com.ebay.pdsx.common.pdsxattrvalue@6b306b30, gem.2039=null, gem.10230=null, gem.10117=null, gem.10119=null, gem.10240=null, uid=com.ebay.pdsx.common.pdsxattrvalue@1e501e50, gem.10001=null, gem.10002=com.ebay.pdsx.common.pdsxattrvalue@5d095d09, gem.10003=null, gem.10246=null, gem.10247=null, gem.60001=null, gem.10007=null, gem.10009=null, gem_routing.partnerlastmodifieddate=null, gem.70006=null, cguid=com.ebay.pdsx.common.pdsxattrvalue@1e361e36, gem.10173=null, gem.10097=null, gem.10131=null, gem.10010=null, gem.10132=null, gem.10177=null, gem.10178=null, gem.10179=null, gem.10015=null, timestamp=com.ebay.pdsx.common.pdsxattrvalue@1e571e57, gem.10016=com.ebay.pdsx.common.pdsxattrvalue@645e645e, gem.10018=null, gem.10019=null, gem.2025=null, siteid=com.ebay.pdsx.common.pdsxattrvalue@1e3f1e3f, gem_routing.partner1lastloggedinuserid=null, gem_routing.partner3lastloggedinuserid=null, gem.10181=null, gem.10182=null, gem.10183=null, gem.10185=null, gem.10187=null, gem.10101=null, gem.10189=null, gem.10102=null, gem.10026=null, pguid=com.ebay.pdsx.common.pdsxattrvalue@1e461e46, gem.2032=null, sguid=null, gem.2033=null, gem.2034=null, gem.2035=null}

this below pdsxrecord class

    public class pdsxrecord {     private string m_key;     private map<pdsxattrkey, pdsxattrvalue> m_mapattrs;      // use other constructor!     protected pdsxrecord()     {     }      // constructor     public pdsxrecord(string key, map<pdsxattrkey, pdsxattrvalue> mapattrs)     {         m_key = key;         m_mapattrs = mapattrs;     }      /**      * key       *       * @return      */     public string getkey()     {         return m_key;     }      /**      * attributes map of key=value      *       * @return      */     public map<pdsxattrkey, pdsxattrvalue> getattrs()     {         return m_mapattrs;     }      /**      * string -- debugging , simple persistence      */     public string tostring()     {         unsynchronizedstringbuffer buf = new unsynchronizedstringbuffer();         buf.append("key=" + getkey() + "\n");         if (getattrs() == null || getattrs().size() == 0) {             return buf.tostring();         }          (map.entry<pdsxattrkey, pdsxattrvalue> entry : getattrs().entryset()) {             string key = (entry.getkey()==null ? "null" : entry.getkey().getkey());             string value = ((entry.getvalue() == null ||                             entry.getvalue().getvalue() == null) ?                          "null" : entry.getvalue().getvalue().tostring());             buf.append("  " + key + "=" + value +"\n");         }         return buf.tostring();     }  }

updated:- class pdsxattrkey

public class pdsxattrkey     {         private string m_key;          protected pdsxattrkey()         {         }          public pdsxattrkey(string key)         {             m_key = key;         }          public string getkey()         {             return m_key;         }          /**          * override default allow comparing strings           */         public boolean equals(object o)         {             if (o == null) {                 return false;             }             if (o instanceof string) {                 return o.equals(m_key);             }             if (o instanceof pdsxattrkey) {                 return m_key.equals(((pdsxattrkey)o).getkey());             }             return false;         }          /**          * hash code implementation          */         public int hashcode()         {             return (m_key == null ? 0 : m_key.hashcode());         }          public string tostring()         {             return getkey();         }     }

maybe because map consisting of pdsxattrkey key, , checking if there's key string value "siteid".

here's code might useful if not want change map definition map<pdsxattrkey, pdsxattrvalue> map<string, pdsxattrvalue>:

while (!pdsxoutrecords.isempty()) {   pdsxrecord record = pdsxoutrecords.remove(0);   if(record.getattrs().containskey(new pdsxattrkey("siteid"))) {     system.out.println("testing");   } }

note assumes can pass string pdsxattrkey constructor, , class can instantiated. oh , of course have equals() , hashcode() in class, pretty check string value of pdsxattrkey. might ask if worth hassle. that's why suggested change map definition use strings keys, of course not sure if viable solution in case.


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