org.eclipse.jpt.jpa.db
Interface Column

All Superinterfaces:

DatabaseObject

public interface Column
extends DatabaseObject

Database column

Provisional API: This interface is part of an interim API that is still under development and expected to change significantly before reaching stability. It is available at this early stage to solicit feedback from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken (repeatedly) as the API evolves.

Nested Class Summary

static class

Column.IsPartOfPrimaryKey

Nested classes/interfaces inherited from interface org.eclipse.jpt.jpa.db.DatabaseObject

DatabaseObject.DefaultComparator, DatabaseObject.IdentifierTransformer, DatabaseObject.NameTransformer

Field Summary

static org.eclipse.jpt.common.utility.predicate.Predicate<Column>

IS_PART_OF_PRIMARY_KEY

Fields inherited from interface org.eclipse.jpt.jpa.db.DatabaseObject

DEFAULT_COMPARATOR, IDENTIFIER_TRANSFORMER, NAME_TRANSFORMER

Method Summary

String	getDataTypeName() Return the name of the column's datatype.
JavaType	getJavaType() Return a Java type that is reasonably similar to the column's data type.
String	getJavaTypeDeclaration() Return a Java type declaration that is reasonably similar to the column's data type.
int	getLength() If the column is a CharacterStringDataType, return its length; otherwise, return -1.
int	getPrecision() Return the column's precision if it is a NumericalDataType; otherwise, return -1.
JavaType	getPrimaryKeyJavaType() Return a Java type that is reasonably similar to the column's data type and suitable for use as a primary key field.
String	getPrimaryKeyJavaTypeDeclaration() Return a Java type declaration that is reasonably similar to the column's data type and suitable for use as a primary key field.
int	getScale() Return the column's scale if it is an ExactNumericDataType; otherwise, return -1.
Table	getTable() Return the column's table.
boolean	isLOB() Return whether the column's datatype is a LOB type (i.e.
boolean	isNullable() Return whether the column is nullable.
boolean	isNumeric() Return whether the column's type is numeric.
boolean	isPartOfForeignKey() Return whether the column is part of one of its table's foreign keys.
boolean	isPartOfPrimaryKey() Return whether the column is part of its table's primary key.
boolean	isPartOfUniqueConstraint() Return whether the column is part of a unique constraint defined for its table.

Methods inherited from interface org.eclipse.jpt.jpa.db.DatabaseObject

getConnectionProfile, getDatabase, getIdentifier, getIdentifier, getName, refresh

Field Detail

IS_PART_OF_PRIMARY_KEY

static final org.eclipse.jpt.common.utility.predicate.Predicate<Column> IS_PART_OF_PRIMARY_KEY

Method Detail

getTable

Table getTable()

Return the column's table.

isPartOfPrimaryKey

boolean isPartOfPrimaryKey()

Return whether the column is part of its table's primary key.

isPartOfForeignKey

boolean isPartOfForeignKey()

Return whether the column is part of one of its table's foreign keys.

isPartOfUniqueConstraint

boolean isPartOfUniqueConstraint()

Return whether the column is part of a unique constraint defined for its table.

isNullable

boolean isNullable()

Return whether the column is nullable.

getDataTypeName

String getDataTypeName()

Return the name of the column's datatype.

isNumeric

boolean isNumeric()

Return whether the column's type is numeric.

getPrecision

int getPrecision()

Return the column's precision if it is a NumericalDataType; otherwise, return -1.

getScale

int getScale()

Return the column's scale if it is an ExactNumericDataType; otherwise, return -1.

getLength

int getLength()

If the column is a CharacterStringDataType, return its length; otherwise, return -1.

isLOB

boolean isLOB()

Return whether the column's datatype is a LOB type (i.e. BLOB, CLOB, or NCLOB).

getJavaTypeDeclaration

String getJavaTypeDeclaration()

Return a Java type declaration that is reasonably similar to the column's data type.

getJavaType

JavaType getJavaType()

Return a Java type that is reasonably similar to the column's data type.

getPrimaryKeyJavaTypeDeclaration

String getPrimaryKeyJavaTypeDeclaration()

Return a Java type declaration that is reasonably similar to the column's data type and suitable for use as a primary key field.

getPrimaryKeyJavaType

JavaType getPrimaryKeyJavaType()

Return a Java type that is reasonably similar to the column's data type and suitable for use as a primary key field.