classUtils.javassist
Class CtField.Initializer

java.lang.Object
  extended by classUtils.javassist.CtField.Initializer
Enclosing class:
CtField

public abstract static class CtField.Initializer
extends java.lang.Object

Instances of this class specify how to initialize a field. Initializer is passed to CtClass.addField() with a CtField.

This class cannot be instantiated with the new operator. Factory methods such as byParameter() and byNew must be used for the instantiation. They create a new instance with the given parameters and return it.

See Also:
CompileTimeClass.addField(CtField,CtField.Initializer)

Constructor Summary
CtField.Initializer()
           
 
Method Summary
static CtField.Initializer byCall(CompileTimeClass methodClass, java.lang.String methodName)
          Makes an initializer calling a static method.
static CtField.Initializer byCall(CompileTimeClass methodClass, java.lang.String methodName, java.lang.String[] stringParams)
          Makes an initializer calling a static method.
static CtField.Initializer byCallWithParams(CompileTimeClass methodClass, java.lang.String methodName)
          Makes an initializer calling a static method.
static CtField.Initializer byCallWithParams(CompileTimeClass methodClass, java.lang.String methodName, java.lang.String[] stringParams)
          Makes an initializer calling a static method.
static CtField.Initializer byExpr(java.lang.String source)
          Makes an initializer.
static CtField.Initializer byNew(CompileTimeClass objectType)
          Makes an initializer creating a new object.
static CtField.Initializer byNew(CompileTimeClass objectType, java.lang.String[] stringParams)
          Makes an initializer creating a new object.
static CtField.Initializer byNewArray(CompileTimeClass type, int size)
          Makes an initializer creating a new array.
static CtField.Initializer byNewArray(CompileTimeClass type, int[] sizes)
          Makes an initializer creating a new multi-dimensional array.
static CtField.Initializer byNewWithParams(CompileTimeClass objectType)
          Makes an initializer creating a new object.
static CtField.Initializer byNewWithParams(CompileTimeClass objectType, java.lang.String[] stringParams)
          Makes an initializer creating a new object.
static CtField.Initializer byParameter(int nth)
          Makes an initializer using a constructor parameter.
static CtField.Initializer constant(double d)
          Makes an initializer that assigns a constant double value.
static CtField.Initializer constant(int i)
          Makes an initializer that assigns a constant integer value.
static CtField.Initializer constant(long l)
          Makes an initializer that assigns a constant long value.
static CtField.Initializer constant(java.lang.String s)
          Makes an initializer that assigns a constant string value.
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

CtField.Initializer

public CtField.Initializer()
Method Detail

constant

public static CtField.Initializer constant(int i)
Makes an initializer that assigns a constant integer value. The field must be integer type.


constant

public static CtField.Initializer constant(long l)
Makes an initializer that assigns a constant long value. The field must be long type.


constant

public static CtField.Initializer constant(double d)
Makes an initializer that assigns a constant double value. The field must be double type.


constant

public static CtField.Initializer constant(java.lang.String s)
Makes an initializer that assigns a constant string value. The field must be java.lang.String type.


byParameter

public static CtField.Initializer byParameter(int nth)
Makes an initializer using a constructor parameter.

The initial value is the N-th parameter given to the constructor of the object including the field. If the constructor takes less than N parameters, the field is not initialized. If the field is static, it is never initialized.

Parameters:
nth - the n-th (>= 0) parameter is used as the initial value. If nth is 0, then the first parameter is used.

byNew

public static CtField.Initializer byNew(CompileTimeClass objectType)
Makes an initializer creating a new object.

This initializer creates a new object and uses it as the initial value of the field. The constructor of the created object receives the parameter:

If the initialized field is static, then the constructor does not receive any parameters.

Parameters:
objectType - the class instantiated for the initial value.

byNew

public static CtField.Initializer byNew(CompileTimeClass objectType,
                                        java.lang.String[] stringParams)
Makes an initializer creating a new object.

This initializer creates a new object and uses it as the initial value of the field. The constructor of the created object receives the parameters:

If the initialized field is static, then the constructor receives only strs.

Parameters:
objectType - the class instantiated for the initial value.
stringParams - the array of strings passed to the constructor.

byNewWithParams

public static CtField.Initializer byNewWithParams(CompileTimeClass objectType)
Makes an initializer creating a new object.

This initializer creates a new object and uses it as the initial value of the field. The constructor of the created object receives the parameters:

If the initialized field is static, then the constructor does not receive any parameters.

Parameters:
objectType - the class instantiated for the initial value.
See Also:
byNewArray(CompileTimeClass,int), byNewArray(CompileTimeClass,int[])

byNewWithParams

public static CtField.Initializer byNewWithParams(CompileTimeClass objectType,
                                                  java.lang.String[] stringParams)
Makes an initializer creating a new object.

This initializer creates a new object and uses it as the initial value of the field. The constructor of the created object receives the parameters:

If the initialized field is static, then the constructor receives only strs.

Parameters:
objectType - the class instantiated for the initial value.
stringParams - the array of strings passed to the constructor.

byCall

public static CtField.Initializer byCall(CompileTimeClass methodClass,
                                         java.lang.String methodName)
Makes an initializer calling a static method.

This initializer calls a static method and uses the returned value as the initial value of the field. The called method receives the parameters:

If the initialized field is static, then the method does not receive any parameters.

The type of the returned value must be the same as the field type.

Parameters:
methodClass - the class that the static method is declared in.
methodName - the name of the satic method.

byCall

public static CtField.Initializer byCall(CompileTimeClass methodClass,
                                         java.lang.String methodName,
                                         java.lang.String[] stringParams)
Makes an initializer calling a static method.

This initializer calls a static method and uses the returned value as the initial value of the field. The called method receives the parameters:

If the initialized field is static, then the method receive only strs.

The type of the returned value must be the same as the field type.

Parameters:
methodClass - the class that the static method is declared in.
methodName - the name of the satic method.
stringParams - the array of strings passed to the static method.

byCallWithParams

public static CtField.Initializer byCallWithParams(CompileTimeClass methodClass,
                                                   java.lang.String methodName)
Makes an initializer calling a static method.

This initializer calls a static method and uses the returned value as the initial value of the field. The called method receives the parameters:

If the initialized field is static, then the method does not receive any parameters.

The type of the returned value must be the same as the field type.

Parameters:
methodClass - the class that the static method is declared in.
methodName - the name of the satic method.

byCallWithParams

public static CtField.Initializer byCallWithParams(CompileTimeClass methodClass,
                                                   java.lang.String methodName,
                                                   java.lang.String[] stringParams)
Makes an initializer calling a static method.

This initializer calls a static method and uses the returned value as the initial value of the field. The called method receives the parameters:

If the initialized field is static, then the method receive only strs.

The type of the returned value must be the same as the field type.

Parameters:
methodClass - the class that the static method is declared in.
methodName - the name of the satic method.
stringParams - the array of strings passed to the static method.

byNewArray

public static CtField.Initializer byNewArray(CompileTimeClass type,
                                             int size)
                                      throws NotFoundException
Makes an initializer creating a new array.

Parameters:
type - the type of the array.
size - the size of the array.
Throws:
NotFoundException - if the type of the array components is not found.

byNewArray

public static CtField.Initializer byNewArray(CompileTimeClass type,
                                             int[] sizes)
Makes an initializer creating a new multi-dimensional array.

Parameters:
type - the type of the array.
sizes - an int array of the size in every dimension. The first element is the size in the first dimension. The second is in the second, etc.

byExpr

public static CtField.Initializer byExpr(java.lang.String source)
Makes an initializer.

Parameters:
source - initializer expression.