Package org.firebirdsql.gds.impl.argument

Class ByteArgument

java.lang.Object

org.firebirdsql.gds.impl.argument.Argument

org.firebirdsql.gds.impl.argument.TypedArgument

org.firebirdsql.gds.impl.argument.ByteArgument

All Implemented Interfaces:

java.io.Serializable, Parameter

public final class ByteArgument
extends TypedArgument

Argument implementation for byte values.

Since:

5

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
ByteArgument(int type, ArgumentType argumentType, byte value)

Method Summary

Modifier and Type	Method	Description
void	copyTo(ParameterBuffer buffer, Encoding encoding)	Copies this argument into the supplied buffer, uses the supplied Encoding for string arguments.
boolean	equals(java.lang.Object other)
int	getLength()
int	getValueAsInt()	The value of the parameter as int.
long	getValueAsLong()	The value of the parameter as long.
int	hashCode()
ByteArgument	transformTo(ParameterBufferMetaData parameterBufferMetaData)	If needed, returns a new argument to transform to a suitable argument type, otherwise returns this instance.
void	writeTo(java.io.OutputStream outputStream)	Writes the arguments to the supplied OutputStream in the XDR format of the type.

Methods inherited from class org.firebirdsql.gds.impl.argument.TypedArgument

getArgumentType

Methods inherited from class org.firebirdsql.gds.impl.argument.Argument

getType, getValueAsString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ByteArgument

public ByteArgument(int type,
                    ArgumentType argumentType,
                    byte value)

Method Detail

writeTo

public void writeTo(java.io.OutputStream outputStream)
             throws java.io.IOException

Description copied from class: Argument

Writes the arguments to the supplied OutputStream in the XDR format of the type.

Specified by:

writeTo in class Argument

Parameters:

outputStream - OutputStream

Throws:

java.io.IOException - For errors writing to the OutputStream

getLength

public int getLength()

Specified by:

getLength in class Argument

Returns:

Total length of the buffer item when written to the OutputStream by Argument.writeTo(java.io.OutputStream). This includes the item, the value and other items contributing to the total length (e.g. the length of the value).

getValueAsInt

public int getValueAsInt()

Description copied from interface: Parameter

The value of the parameter as int.

The implementation may throw a RuntimeException if the parameter isn't an int (or shouldn't be used as an int).

Specified by:

getValueAsInt in interface Parameter

Overrides:

getValueAsInt in class Argument

Returns:

The value as int

getValueAsLong

public long getValueAsLong()

Description copied from interface: Parameter

The value of the parameter as long.

The implementation may throw a RuntimeException if the parameter isn't a long (or shouldn't be used as a long).

Specified by:

getValueAsLong in interface Parameter

Overrides:

getValueAsLong in class Argument

Returns:

The value as long

copyTo

public void copyTo(ParameterBuffer buffer,
                   Encoding encoding)

Description copied from interface: Parameter

Copies this argument into the supplied buffer, uses the supplied Encoding for string arguments.

An instance of Parameter should know how to copy itself into another buffer (eg an instance of StringArgument would know to call ParameterBuffer.addArgument(int, String, Encoding)).

The parameter does not need to check if it is the right type of destination buffer (if someone tries to add a TPB argument to a DPB he is free to try that).

Parameters:

buffer - ParameterBuffer instance

encoding - Encoding to use for string properties. A value of null can be used to signal that the original encoding should be used.

transformTo

public ByteArgument transformTo(ParameterBufferMetaData parameterBufferMetaData)

Description copied from class: Argument

If needed, returns a new argument to transform to a suitable argument type, otherwise returns this instance.

Specified by:

transformTo in class Argument

Parameters:

parameterBufferMetaData - parameter buffer metadata (used to determine the needed argument type)

Returns:

either a new argument if transformation is needed, or this instance

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object