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JDBCRelationshipRoleMetaData (JBoss Server API) - JBoss 4.0.1 sp1 server API Documentation 英文版文档

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org.jboss.ejb.plugins.cmp.jdbc.metadata
Class JDBCRelationshipRoleMetaData

java.lang.Object
  org.jboss.ejb.plugins.cmp.jdbc.metadata.JDBCRelationshipRoleMetaData

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public final class JDBCRelationshipRoleMetaData

extends Object

Imutable class which represents one ejb-relationship-role element found in the ejb-jar.xml file's ejb-relation elements.

Version:

$Revision: 1.22 $

Author:

Dain Sundstrom, Alexey Loubyansky

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Constructor Summary

JDBCRelationshipRoleMetaData(JDBCRelationMetaData relationMetaData, JDBCApplicationMetaData application, Element element, JDBCRelationshipRoleMetaData defaultValues)

JDBCRelationshipRoleMetaData(JDBCRelationMetaData relationMetaData, JDBCApplicationMetaData application, RelationshipRoleMetaData role)

 

Method Summary
String	getCMRFieldName()           Gets the name of the entity's cmr field for this role.
JDBCEntityMetaData	getEntity()           Gets the name of the entity that has this role.
Collection	getKeyFields()           Gets the key fields of this role.
JDBCReadAheadMetaData	getReadAhead()           Gets the read ahead meta data
JDBCRelationshipRoleMetaData	getRelatedRole()           Gets the related role's jdbc meta data.
JDBCRelationMetaData	getRelationMetaData()           Gets the relation to which this role belongs.
String	getRelationshipRoleName()           Gets the name of this role.
boolean	hasForeignKeyConstraint()           Should this role use a foreign key constraint.
void	init(JDBCRelationshipRoleMetaData relatedRole)
void	init(JDBCRelationshipRoleMetaData relatedRole, Element element)
boolean	isBatchCascadeDelete()
boolean	isCascadeDelete()           Should this entity be deleted when related entity is deleted.
boolean	isIndexed()
boolean	isMultiplicityMany()           Checks if the multiplicity is many.
boolean	isMultiplicityOne()           Checks if the multiplicity is one.

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

JDBCRelationshipRoleMetaData

public JDBCRelationshipRoleMetaData(JDBCRelationMetaData relationMetaData,
                                    JDBCApplicationMetaData application,
                                    RelationshipRoleMetaData role)
                             throws org.jboss.deployment.DeploymentException

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JDBCRelationshipRoleMetaData

public JDBCRelationshipRoleMetaData(JDBCRelationMetaData relationMetaData,
                                    JDBCApplicationMetaData application,
                                    Element element,
                                    JDBCRelationshipRoleMetaData defaultValues)
                             throws org.jboss.deployment.DeploymentException

Method Detail

init

public void init(JDBCRelationshipRoleMetaData relatedRole)
          throws org.jboss.deployment.DeploymentException

Throws:

org.jboss.deployment.DeploymentException

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init

public void init(JDBCRelationshipRoleMetaData relatedRole,
                 Element element)
          throws org.jboss.deployment.DeploymentException

Throws:

org.jboss.deployment.DeploymentException

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getRelationMetaData

public JDBCRelationMetaData getRelationMetaData()

Gets the relation to which this role belongs.

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getRelationshipRoleName

public String getRelationshipRoleName()

Gets the name of this role.

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hasForeignKeyConstraint

public boolean hasForeignKeyConstraint()

Should this role use a foreign key constraint.

Returns:

true if the store mananager will execute an ALTER TABLE ADD CONSTRAINT statement to add a foreign key constraint.

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isMultiplicityOne

public boolean isMultiplicityOne()

Checks if the multiplicity is one.

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isMultiplicityMany

public boolean isMultiplicityMany()

Checks if the multiplicity is many.

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isCascadeDelete

public boolean isCascadeDelete()

Should this entity be deleted when related entity is deleted.

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isBatchCascadeDelete

public boolean isBatchCascadeDelete()

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getEntity

public JDBCEntityMetaData getEntity()

Gets the name of the entity that has this role.

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getCMRFieldName

public String getCMRFieldName()

Gets the name of the entity's cmr field for this role.

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getRelatedRole

public JDBCRelationshipRoleMetaData getRelatedRole()

Gets the related role's jdbc meta data.

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getReadAhead

public JDBCReadAheadMetaData getReadAhead()

Gets the read ahead meta data

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getKeyFields

public Collection getKeyFields()

Gets the key fields of this role.

Returns:

an unmodifiable collection of JDBCCMPFieldMetaData objects

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isIndexed

public boolean isIndexed()

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