com.ing.data.cassandra.jdbc.types

Class AbstractJdbcType<T>

java.lang.Object

com.ing.data.cassandra.jdbc.types.AbstractJdbcType<T>

Type Parameters:

T - The Java type corresponding to the CQL type.

Direct Known Subclasses:

AbstractJdbcCollection, AbstractJdbcUUID, JdbcAscii, JdbcBoolean, JdbcByte, JdbcBytes, JdbcDate, JdbcDecimal, JdbcDouble, JdbcFloat, JdbcInetAddress, JdbcInt32, JdbcInteger, JdbcLong, JdbcOther, JdbcShort, JdbcTime, JdbcTimestamp, JdbcTuple, JdbcUdt, JdbcUTF8

public abstract class AbstractJdbcType<T>
extends Object

Abstract class providing description about the JDBC equivalent of a CQL type.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_PRECISION The default precision value for JDBC types.
static int	DEFAULT_SCALE The default scale value for JDBC types.

Constructor Summary

Constructors

Constructor and Description
AbstractJdbcType()

Method Summary

Modifier and Type	Method and Description
abstract T	compose(Object obj) Transforms the given object to an instance of the Java type corresponding to this type.
abstract Object	decompose(T obj) Transforms the given instance of the Java type corresponding to this type to a generic object.
abstract int	getJdbcType() Gets the JDBC type constant.
abstract int	getPrecision(T obj) Gets the precision of the given value (if applicable).
abstract int	getScale(T obj) Gets the scale of the given value (if applicable).
abstract Class<T>	getType() Gets the Java type corresponding to this type.
abstract boolean	isCaseSensitive() Gets whether the values of this type are case-sensitive (if applicable).
abstract boolean	isCurrency() Gets whether the values of this type are currencies (if applicable).
abstract boolean	isSigned() Gets whether the values of this type are signed (if applicable).
abstract boolean	needsQuotes() Gets whether the values of this type require quotes.
abstract String	toString(T obj) Gets a string representation of the given value.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_SCALE

public static final int DEFAULT_SCALE

The default scale value for JDBC types.

See Also:

Constant Field Values

DEFAULT_PRECISION

public static final int DEFAULT_PRECISION

The default precision value for JDBC types.

See Also:

Constant Field Values

Constructor Detail

AbstractJdbcType

public AbstractJdbcType()

Method Detail

isCaseSensitive

public abstract boolean isCaseSensitive()

Gets whether the values of this type are case-sensitive (if applicable).

The implementation should return false if not applicable.

Returns:

true if the values are case-sensitive, false otherwise.

getScale

public abstract int getScale(T obj)

Gets the scale of the given value (if applicable).

The implementation should return 0 if not applicable.

Parameters:

obj - The value.

Returns:

The scale.

getPrecision

public abstract int getPrecision(T obj)

Gets the precision of the given value (if applicable).

The implementation should return -1 if not applicable.

Parameters:

obj - The value.

Returns:

The precision.

isCurrency

public abstract boolean isCurrency()

Gets whether the values of this type are currencies (if applicable).

The implementation should return false if not applicable.

Returns:

true if the values are currencies, false otherwise.

isSigned

public abstract boolean isSigned()

Gets whether the values of this type are signed (if applicable).

The implementation should return false if not applicable.

Returns:

true if the values are signed, false otherwise.

toString

public abstract String toString(T obj)

Gets a string representation of the given value.

Parameters:

obj - The value.

Returns:

The string representation of the value.

needsQuotes

public abstract boolean needsQuotes()

Gets whether the values of this type require quotes.

Returns:

true if the values need to be surrounded by quotes, false otherwise.

getType

public abstract Class<T> getType()

Gets the Java type corresponding to this type.

Returns:

The Java type corresponding to this type.

getJdbcType

public abstract int getJdbcType()

Gets the JDBC type constant.

Returns:

The JDBC type constant.

See Also:

Types

compose

public abstract T compose(Object obj)

Transforms the given object to an instance of the Java type corresponding to this type.

Parameters:

obj - The object.

Returns:

An instance of T.

decompose

public abstract Object decompose(T obj)

Transforms the given instance of the Java type corresponding to this type to a generic object.

Parameters:

obj - The value.

Returns:

The transformed object.