Subject: RE: calling methods that take an array or list of interfaces - msg#00107

Previous Message by Date: click to view message preview

RE: calling methods that take an array or list of interfaces

Shouldn't it be: criteria.setSiteUuids( wsites.toArray(new WSite[wsites.size()]) ); I.e. new Wsite not the interface. Dion -----Original Message----- From: Randy Thornton [mailto:randy_thornton-j507d6adJKUVOD6bQOMgHhL4W9x8LtSr@xxxxxxxxxxxxxxxx] Sent: Thursday, October 14, 2004 3:36 PM To: user-i9PBDF1N6cxnkHa44VUL00B+6BGkLq7r@xxxxxxxxxxxxxxxx Subject: [groovy-user] calling methods that take an array or list of interfaces This is related to the email I sent a few days ago. I can't figure out how to pass arrays or list of interface pointers. Here is the method prototype: public void setSites(IWSite[] sites) {...} and the class declaration of WSite and IWSite: public class WSite implements IWSite {} This is the line from the script where wsites is an ArrayList of IWSite objects. criteria.setSiteUuids( wsites.toArray(new IWSite[wsites.size()]) ); And finally the error that I have become so frustrated with. No signature of method com.perfretail.k2v1.wake.reports.WReportsCriteria.setSiteUuids() is applicable for argument types: ([Lcom.perfretail.k2v1.wake.api.IWSite;) values: [[com.perfretail.k2v1.wake.core.WSite@8f83a9[name=Store 100,uuid=afefe88416e94d9449186e9], com.perfretail.k2v1.wake.core.WSite@cf590[name=Store 200,uuid=afefe88416e94fb44918796]]] As you can see it is an array of WSite, but it can't resolve it to IWSite. The same behavior exists for methods that take in a List as an argument as my previous email.

Next Message by Date: click to view message preview

RE: calling methods that take an array or list of interfaces

Maybe I am on the wrong track here, but in toArray() you need to pass in an array. How can you create a new array of interfaces? new WSite[...] creates the real array (which implements IWSite, and has instanceof). Dion -----Original Message----- From: Randy Thornton [mailto:randy_thornton-j507d6adJKUVOD6bQOMgHhL4W9x8LtSr@xxxxxxxxxxxxxxxx] Sent: Thursday, October 14, 2004 5:05 PM To: user-i9PBDF1N6cxnkHa44VUL00B+6BGkLq7r@xxxxxxxxxxxxxxxx Subject: RE: [groovy-user] calling methods that take an array or list of interfaces No, the prototype is "public void setSites(IWSite[] sites)." It takes IWSite[]. If you look in the error you will see that the values are actually WSite. Groovy just can't map them to IWSite[]. I am really beginning to believe this is a bug and not just a syntax problem. I just find it hard to believe I am the first person to try this. Randy -----Original Message----- From: Dion Almaer [mailto:dion-4eS6uFwS6GLQT0dZR+AlfA@xxxxxxxxxxxxxxxx] Sent: Thu 10/14/2004 3:54 PM To: user-i9PBDF1N6cxnkHa44VUL00B+6BGkLq7r@xxxxxxxxxxxxxxxx Cc: Subject: RE: [groovy-user] calling methods that take an array or list of interfaces Shouldn't it be: criteria.setSiteUuids( wsites.toArray(new WSite[wsites.size()]) ); I.e. new Wsite not the interface. Dion -----Original Message----- From: Randy Thornton [mailto:randy_thornton-j507d6adJKUVOD6bQOMgHhL4W9x8LtSr@xxxxxxxxxxxxxxxx] Sent: Thursday, October 14, 2004 3:36 PM To: user-i9PBDF1N6cxnkHa44VUL00B+6BGkLq7r@xxxxxxxxxxxxxxxx Subject: [groovy-user] calling methods that take an array or list of interfaces This is related to the email I sent a few days ago. I can't figure out how to pass arrays or list of interface pointers. Here is the method prototype: public void setSites(IWSite[] sites) {...} and the class declaration of WSite and IWSite: public class WSite implements IWSite {} This is the line from the script where wsites is an ArrayList of IWSite objects. criteria.setSiteUuids( wsites.toArray(new IWSite[wsites.size()]) ); And finally the error that I have become so frustrated with. No signature of method com.perfretail.k2v1.wake.reports.WReportsCriteria.setSiteUuids() is applicable for argument types: ([Lcom.perfretail.k2v1.wake.api.IWSite;) values: [[com.perfretail.k2v1.wake.core.WSite@8f83a9[name=Store 100,uuid=afefe88416e94d9449186e9], com.perfretail.k2v1.wake.core.WSite@cf590[name=Store 200,uuid=afefe88416e94fb44918796]]] As you can see it is an array of WSite, but it can't resolve it to IWSite. The same behavior exists for methods that take in a List as an argument as my previous email.

Previous Message by Thread: click to view message preview

Re: calling methods that take an array or list of interfaces

Here is an example of a method accepting an interface, and the groovy script which uses the method successfully (even with beta 7! ;-). Here is the groovy script (swap Vector for List,ArrayList and also works grand): ----------------- java.util.Vector bars = new java.util.Vector(); for(i in 1..10) { bars.add(new Bar()); } foo = new Foo(); foo.doSomething(bars.toArray(new IBar[0])); ----------------- Here are the corresponding java classes: ----------------- public interface IBar{ public void doit(); } ----------------- public class Bar implements IBar, java.io.Serializable { public void doit() { System.out.println("this is Bar.doit()"); } } ----------------- public class Foo{ public void doSomething(IBar[] bars){ for(int i=0;i<bars.length;i++){ bars[i].doit(); } } } ----------------- Best regards, Robert. > This is related to the email I sent a few days ago. I can't figure out > how to pass arrays or list of interface pointers. > > Here is the method prototype: > public void setSites(IWSite[] sites) {...} > > and the class declaration of WSite and IWSite: > > public class WSite implements IWSite {} > > This is the line from the script where wsites is an ArrayList of IWSite > objects. > > criteria.setSiteUuids( wsites.toArray(new IWSite[wsites.size()]) ); > > And finally the error that I have become so frustrated with. > No signature of method > com.perfretail.k2v1.wake.reports.WReportsCriteria.setSiteUuids() is > applicable for argument types: ([Lcom.perfretail.k2v1.wake.api.IWSite;) > values: [[com.perfretail.k2v1.wake.core.WSite@8f83a9[name=Store > 100,uuid=afefe88416e94d9449186e9], > com.perfretail.k2v1.wake.core.WSite@cf590[name=Store > 200,uuid=afefe88416e94fb44918796]]] > As you can see it is an array of WSite, but it can't resolve it to IWSite. > The same behavior exists for methods that take in a List as an argument > as my previous email. > > > > > -- Robert Fuller rfuller-uSSxwurkIxcAvxtiuMwx3w@xxxxxxxxxxxxxxxx | +353.86.0507760 | http://www.aplpi.com Applepie Solutions Ltd., Galway, Ireland.

Next Message by Thread: click to view message preview

RE: calling methods that take an array or list of interfaces

Maybe I am on the wrong track here, but in toArray() you need to pass in an array. How can you create a new array of interfaces? new WSite[...] creates the real array (which implements IWSite, and has instanceof). Dion -----Original Message----- From: Randy Thornton [mailto:randy_thornton-j507d6adJKUVOD6bQOMgHhL4W9x8LtSr@xxxxxxxxxxxxxxxx] Sent: Thursday, October 14, 2004 5:05 PM To: user-i9PBDF1N6cxnkHa44VUL00B+6BGkLq7r@xxxxxxxxxxxxxxxx Subject: RE: [groovy-user] calling methods that take an array or list of interfaces No, the prototype is "public void setSites(IWSite[] sites)." It takes IWSite[]. If you look in the error you will see that the values are actually WSite. Groovy just can't map them to IWSite[]. I am really beginning to believe this is a bug and not just a syntax problem. I just find it hard to believe I am the first person to try this. Randy -----Original Message----- From: Dion Almaer [mailto:dion-4eS6uFwS6GLQT0dZR+AlfA@xxxxxxxxxxxxxxxx] Sent: Thu 10/14/2004 3:54 PM To: user-i9PBDF1N6cxnkHa44VUL00B+6BGkLq7r@xxxxxxxxxxxxxxxx Cc: Subject: RE: [groovy-user] calling methods that take an array or list of interfaces Shouldn't it be: criteria.setSiteUuids( wsites.toArray(new WSite[wsites.size()]) ); I.e. new Wsite not the interface. Dion -----Original Message----- From: Randy Thornton [mailto:randy_thornton-j507d6adJKUVOD6bQOMgHhL4W9x8LtSr@xxxxxxxxxxxxxxxx] Sent: Thursday, October 14, 2004 3:36 PM To: user-i9PBDF1N6cxnkHa44VUL00B+6BGkLq7r@xxxxxxxxxxxxxxxx Subject: [groovy-user] calling methods that take an array or list of interfaces This is related to the email I sent a few days ago. I can't figure out how to pass arrays or list of interface pointers. Here is the method prototype: public void setSites(IWSite[] sites) {...} and the class declaration of WSite and IWSite: public class WSite implements IWSite {} This is the line from the script where wsites is an ArrayList of IWSite objects. criteria.setSiteUuids( wsites.toArray(new IWSite[wsites.size()]) ); And finally the error that I have become so frustrated with. No signature of method com.perfretail.k2v1.wake.reports.WReportsCriteria.setSiteUuids() is applicable for argument types: ([Lcom.perfretail.k2v1.wake.api.IWSite;) values: [[com.perfretail.k2v1.wake.core.WSite@8f83a9[name=Store 100,uuid=afefe88416e94d9449186e9], com.perfretail.k2v1.wake.core.WSite@cf590[name=Store 200,uuid=afefe88416e94fb44918796]]] As you can see it is an array of WSite, but it can't resolve it to IWSite. The same behavior exists for methods that take in a List as an argument as my previous email.