java - Spring: calling method before injection -

java - Spring: calling method before injection -

i explain problem simple example:

class="lang-java prettyprint-override">public class () { private b b; public () { /* ... */ } public b getb () { /* ... */ } @autowired public void setb (b b) { /* ... */ } public init (int x, int y, float rx, float ry) { /* ... */ } }

and

class="lang-java prettyprint-override">public class b () { private a; public b () { /* ... */ } public geta () { /* ... */ } @autowired public void seta (a a) { /* ... */ } public init (int x, int y, float rx, float ry) { /* ... */ } }

so need phone call init() method before injection, because after injection called method injected component in loop fps times per second, , of course of study not initialized nullpointerexception.

i utilize setter injection , create object context.getbean("a").

is there way phone call method init() before injection?

i believe you're looking @postconstruct, specified in jsr250, tells spring run method dependencies injected bean. implement initializingbean interface. check out this more details , options. however, circular dependency going complicate things. there few ways solve this, @ end of day you're improve off redesigning remove circular dependency.

java spring dependency-injection javabeans autowired