com.metamatrix.common.jdbc.metadata
Class Nullability

java.lang.Object
  com.metamatrix.common.jdbc.metadata.Nullability

public class Nullability
extends java.lang.Object

Field Summary

static Nullability	NO_NULLS Null values may not be allowed.
static Nullability	NULLABLE Null values are definitiely allowed.
static Nullability	PROCEDURE_NO_NULLS Null values may not be allowed in procedure
static Nullability	PROCEDURE_NULLABLE Null values are allowed in procedure
static Nullability	PROCEDURE_NULLABLE_UNKNOWN Not known whether Null values are allowed in procedure
static Nullability	UNKNOWN Whether Null values are allowed is unknown.

Method Summary

int	compareTo(java.lang.Object obj) Compares this object to another.
boolean	equals(java.lang.Object obj) Returns true if the specified object is semantically equal to this instance.
java.lang.String	getDisplayName() Return the display name for this type.
static Nullability	getInstance(int value)
static Nullability	getInstance(java.lang.String displayName)
int	hashCode() Returns the hash code value for this object.
java.lang.String	toString() Returns a string representing the current state of the object.

Methods inherited from class java.lang.Object

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

Field Detail

NO_NULLS

public static final Nullability NO_NULLS

Null values may not be allowed.

NULLABLE

public static final Nullability NULLABLE

Null values are definitiely allowed.

UNKNOWN

public static final Nullability UNKNOWN

Whether Null values are allowed is unknown.

PROCEDURE_NO_NULLS

public static final Nullability PROCEDURE_NO_NULLS

Null values may not be allowed in procedure

PROCEDURE_NULLABLE

public static final Nullability PROCEDURE_NULLABLE

Null values are allowed in procedure

PROCEDURE_NULLABLE_UNKNOWN

public static final Nullability PROCEDURE_NULLABLE_UNKNOWN

Not known whether Null values are allowed in procedure

Method Detail

getInstance

public static Nullability getInstance(java.lang.String displayName)

getInstance

public static Nullability getInstance(int value)

getDisplayName

public java.lang.String getDisplayName()

Return the display name for this type.

Returns:

the display name

compareTo

public int compareTo(java.lang.Object obj)

Compares this object to another. If the specified object is an instance of the MetaMatrixSessionID class, then this method compares the contents; otherwise, it throws a ClassCastException (as instances are comparable only to instances of the same class).

Note: this method is consistent with equals(), meaning that (compare(x, y)==0) == (x.equals(y)).

Parameters:

obj - the object that this instance is to be compared to.

Returns:

a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object, respectively.

Throws:

java.lang.IllegalArgumentException - if the specified object reference is null

java.lang.ClassCastException - if the specified object's type prevents it from being compared to this instance.

equals

public boolean equals(java.lang.Object obj)

Returns true if the specified object is semantically equal to this instance. Note: this method is consistent with compareTo().

Overrides:

equals in class java.lang.Object

Parameters:

obj - the object that this instance is to be compared to.

Returns:

whether the object is equal to this object.

hashCode

public final int hashCode()

Returns the hash code value for this object.

Overrides:

hashCode in class java.lang.Object

Returns:

a hash code value for this object.

toString

public final java.lang.String toString()

Returns a string representing the current state of the object.

Overrides:

toString in class java.lang.Object

Returns:

the string representation of this instance.