Package com.mckoi.database

Class TBinaryType

java.lang.Object

com.mckoi.database.TType

com.mckoi.database.TBinaryType

All Implemented Interfaces:

java.io.Serializable

public class TBinaryType
extends TType

An implementation of TType for a binary block of data.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private int	max_size	This constrained size of the binary block of data or -1 if there is no size limit.
(package private) static long	serialVersionUID

Fields inherited from class com.mckoi.database.TType

ARRAY_TYPE, BINARY_TYPE, BOOLEAN_TYPE, DATE_TYPE, NULL_TYPE, NUMERIC_TYPE, QUERY_PLAN_TYPE, STRING_TYPE

Constructor Summary

Constructors

Constructor	Description
TBinaryType(int sql_type, int max_size)	Constructs the type.

Method Summary

Modifier and Type	Method	Description
int	calculateApproximateMemoryUse(java.lang.Object ob)	Calculates the approximate memory usage of an object of this type in bytes.
boolean	comparableTypes(TType type)	Returns true if the type of this object is logically comparable to the type of the given object.
(package private) static int	compareBlobs(BlobAccessor blob1, BlobAccessor blob2)	Utility method for comparing one blob with another.
int	compareObs(java.lang.Object ob1, java.lang.Object ob2)	Compares two objects that are logically comparable under this type.
int	getMaximumSize()	Returns the maximum size of this binary type.
java.lang.Class	javaClass()	Returns the Java Class that is used to represent this type of object.

Methods inherited from class com.mckoi.database.TType

asEncodedString, asEncodedString, asSQLString, binaryType, booleanType, castObjectToTType, dateType, decodeString, decodeTypes, fromClass, getSQLType, getWidestType, javaObjectType, numericType, stringType

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

static final long serialVersionUID

See Also:

Constant Field Values

max_size

private int max_size

This constrained size of the binary block of data or -1 if there is no size limit.

Constructor Detail

TBinaryType

public TBinaryType(int sql_type,
                   int max_size)

Constructs the type.

Method Detail

getMaximumSize

public int getMaximumSize()

Returns the maximum size of this binary type.

compareBlobs

static int compareBlobs(BlobAccessor blob1,
                        BlobAccessor blob2)

Utility method for comparing one blob with another. Uses the BlobAccessor interface to compare the blobs. This will collate larger blobs higher than smaller blobs.

comparableTypes

public boolean comparableTypes(TType type)

Description copied from class: TType

Returns true if the type of this object is logically comparable to the type of the given object. For example, VARCHAR and LONGVARCHAR are comparable types. DOUBLE and FLOAT are comparable types. DOUBLE and VARCHAR are not comparable types.

Specified by:

comparableTypes in class TType

compareObs

public int compareObs(java.lang.Object ob1,
                      java.lang.Object ob2)

Description copied from class: TType

Compares two objects that are logically comparable under this type. Returns 0 if the values are equal, >1 if ob1 is greater than ob2, and <1 if ob1 is less than ob2. It is illegal to pass NULL values for ob1 or ob2 into this method.

Specified by:

compareObs in class TType

calculateApproximateMemoryUse

public int calculateApproximateMemoryUse(java.lang.Object ob)

Description copied from class: TType

Calculates the approximate memory usage of an object of this type in bytes.

Specified by:

calculateApproximateMemoryUse in class TType

javaClass

public java.lang.Class javaClass()

Description copied from class: TType

Returns the Java Class that is used to represent this type of object. For example, string types would return String.class.

Specified by:

javaClass in class TType