Package org.apache.bcel.generic
Class FieldOrMethod
- java.lang.Object
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- org.apache.bcel.generic.Instruction
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- org.apache.bcel.generic.CPInstruction
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- org.apache.bcel.generic.FieldOrMethod
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- All Implemented Interfaces:
java.lang.Cloneable
,IndexedInstruction
,LoadClass
,TypedInstruction
- Direct Known Subclasses:
FieldInstruction
,InvokeInstruction
public abstract class FieldOrMethod extends CPInstruction implements LoadClass
Super class for InvokeInstruction and FieldInstruction, since they have some methods in common!
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Field Summary
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Fields inherited from class org.apache.bcel.generic.CPInstruction
index
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Fields inherited from class org.apache.bcel.generic.Instruction
length, opcode
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Constructor Summary
Constructors Modifier Constructor Description protected
FieldOrMethod(short opcode, int index)
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description java.lang.String
getClassName(ConstantPoolGen cpg)
Deprecated.If the instruction references an array class, this method will return "java.lang.Object".ObjectType
getClassType(ConstantPoolGen cpg)
Deprecated.If the instruction references an array class, the ObjectType returned will be invalid.ObjectType
getLoadClassType(ConstantPoolGen cpg)
Gets the ObjectType of the method return or field.java.lang.String
getName(ConstantPoolGen cpg)
ReferenceType
getReferenceType(ConstantPoolGen cpg)
Gets the reference type representing the class, interface, or array class referenced by the instruction.java.lang.String
getSignature(ConstantPoolGen cpg)
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Methods inherited from class org.apache.bcel.generic.CPInstruction
dump, getIndex, getType, initFromFile, setIndex, toString, toString
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Methods inherited from class org.apache.bcel.generic.Instruction
accept, consumeStack, copy, equals, getComparator, getLength, getName, getOpcode, hashCode, isValidByte, isValidShort, produceStack, readInstruction, setComparator, toString
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Method Detail
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getSignature
public java.lang.String getSignature(ConstantPoolGen cpg)
- Returns:
- signature of referenced method/field.
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getName
public java.lang.String getName(ConstantPoolGen cpg)
- Returns:
- name of referenced method/field.
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getClassName
@Deprecated public java.lang.String getClassName(ConstantPoolGen cpg)
Deprecated.If the instruction references an array class, this method will return "java.lang.Object". For code generated by Java 1.5, this answer is sometimes wrong (e.g., if the "clone()" method is called on an array). A better idea is to use thegetReferenceType(ConstantPoolGen)
method, which correctly distinguishes between class types and array types.- Returns:
- name of the referenced class/interface
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getClassType
@Deprecated public ObjectType getClassType(ConstantPoolGen cpg)
Deprecated.If the instruction references an array class, the ObjectType returned will be invalid. Use getReferenceType() instead.- Returns:
- type of the referenced class/interface
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getReferenceType
public ReferenceType getReferenceType(ConstantPoolGen cpg)
Gets the reference type representing the class, interface, or array class referenced by the instruction.- Parameters:
cpg
- the ConstantPoolGen used to create the instruction- Returns:
- an ObjectType (if the referenced class type is a class or interface), or an ArrayType (if the referenced class type is an array class)
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getLoadClassType
public ObjectType getLoadClassType(ConstantPoolGen cpg)
Gets the ObjectType of the method return or field.- Specified by:
getLoadClassType
in interfaceLoadClass
- Returns:
- type of the referenced class/interface
- Throws:
ClassGenException
- when the field is (or method returns) an array,
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