Tomcat 10.1.19 · org.apache.tomcat.util.bcel.classfile.ConstantPool

Modifier and Type	Field and Description
private final Constant[]	constantPool

Access	Constructor and Description
pack-priv	ConstantPool(final DataInput Input stream input) Reads constants from given input stream.

Method Summary

Modifier and Type	Method and Description
public < A `Constant` subclass T extends Constant> T	Returns: Constant value getConstant(final int Index in constant pool index) Gets constant from constant pool.
public < A `Constant` subclass T extends Constant> T	Returns: Constant value getConstant(final int Index in constant pool index, final byte Tag of expected constant, i.e., its type tag) Gets constant from constant pool and check whether it has the expected type.
public < A `Constant` subclass T extends Constant> T	Returns: Constant value getConstant(final int Index in constant pool index, final Class<T> The `Constant` subclass to cast to. castTo) Gets constant from constant pool.
public ConstantInteger	Returns: ConstantInteger value getConstantInteger(final int Index in constant pool index) Gets constant from constant pool and check whether it has the expected type.
public ConstantUtf8	Returns: ConstantUtf8 value getConstantUtf8(final int Index in constant pool index) Gets constant from constant pool and check whether it has the expected type.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

constantPool	back to summary
private final Constant[] constantPool

ConstantPool	back to summary
pack-priv ConstantPool(final DataInput input) throws IOException, ClassFormatException Reads constants from given input stream. Parameters input:DataInput Input stream Exceptions IOException: if an I/O error occurs reading the the InputStream ClassFormatException: If the .class file is not valid

Method Detail

getConstant back to summary

getConstant	back to summary
public <T extends Constant> T getConstant(final int index) throws ClassFormatException Gets constant from constant pool. Parameters <T> A `Constant` subclass index:int Index in constant pool Returns:T Constant value Annotations @SuppressWarnings:unchecked Exceptions ClassFormatException: if index is invalid See Also `Constant`

public <T extends Constant> T getConstant(final int index) throws ClassFormatException

Gets constant from constant pool.

Parameters

<T>: A Constant subclass
index:int: Index in constant pool

Returns:T

Constant value

Annotations

@SuppressWarnings:unchecked

Exceptions

ClassFormatException:: if index is invalid

See Also

Constant

getConstant back to summary

getConstant	back to summary
public <T extends Constant> T getConstant(final int index, final byte tag) throws ClassFormatException Gets constant from constant pool and check whether it has the expected type. Parameters <T> A `Constant` subclass index:int Index in constant pool tag:byte Tag of expected constant, i.e., its type Returns:T Constant value Exceptions ClassFormatException: if constant type does not match tag See Also `Constant`

public <T extends Constant> T getConstant(final int index, final byte tag) throws ClassFormatException

Gets constant from constant pool and check whether it has the expected type.

Parameters

<T>: A Constant subclass
index:int: Index in constant pool
tag:byte: Tag of expected constant, i.e., its type

Returns:T

Constant value

Exceptions

ClassFormatException:: if constant type does not match tag

See Also

Constant

getConstant back to summary

getConstant	back to summary
public <T extends Constant> T getConstant(final int index, final Class<T> castTo) throws ClassFormatException Gets constant from constant pool. Parameters <T> A `Constant` subclass index:int Index in constant pool castTo:Class<T> The `Constant` subclass to cast to. Returns:T Constant value Exceptions ClassFormatException: if index is invalid See Also `Constant`

public <T extends Constant> T getConstant(final int index, final Class<T> castTo) throws ClassFormatException

Gets constant from constant pool.

Parameters

<T>: A Constant subclass
index:int: Index in constant pool
castTo:Class<T>: The Constant subclass to cast to.

Returns:T

Constant value

Exceptions

ClassFormatException:: if index is invalid

See Also

Constant

getConstantInteger back to summary

getConstantInteger	back to summary
public ConstantInteger getConstantInteger(final int index) Gets constant from constant pool and check whether it has the expected type. Parameters index:int Index in constant pool Returns:ConstantInteger ConstantInteger value Exceptions ClassFormatException: if constant type does not match tag See Also `ConstantInteger`

public ConstantInteger getConstantInteger(final int index)

Gets constant from constant pool and check whether it has the expected type.

Parameters

index:int: Index in constant pool

Returns:ConstantInteger

ConstantInteger value

Exceptions

ClassFormatException:: if constant type does not match tag

See Also

ConstantInteger

getConstantUtf8 back to summary

getConstantUtf8	back to summary
public ConstantUtf8 getConstantUtf8(final int index) throws ClassFormatException Gets constant from constant pool and check whether it has the expected type. Parameters index:int Index in constant pool Returns:ConstantUtf8 ConstantUtf8 value Exceptions ClassFormatException: if constant type does not match tag See Also `ConstantUtf8`

public ConstantUtf8 getConstantUtf8(final int index) throws ClassFormatException

Gets constant from constant pool and check whether it has the expected type.

Parameters

index:int: Index in constant pool

Returns:ConstantUtf8

ConstantUtf8 value

Exceptions

ClassFormatException:: if constant type does not match tag

See Also

ConstantUtf8

public Class ConstantPool

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