Package org.firebirdsql.gds.impl.argument

Class SingleItem

java.lang.Object

org.firebirdsql.gds.impl.argument.Argument

org.firebirdsql.gds.impl.argument.TypedArgument

org.firebirdsql.gds.impl.argument.SingleItem

All Implemented Interfaces:

java.io.Serializable, Parameter

public final class SingleItem
extends TypedArgument

Argument implementation for items without a value.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
SingleItem(int item, ArgumentType argumentType)

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	hashCode()
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.Argument

getType, getValueAsInt, getValueAsLong, getValueAsString

Methods inherited from class java.lang.Object

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

Constructor Detail

SingleItem

public SingleItem(int item,
                  ArgumentType argumentType)

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).

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

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.