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Oracle Fusion Middleware Java API Reference for Oracle Extension SDK Reference 11g Release 1 (11.1.1.7.2) E13403-10 |
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java.lang.Object
oracle.javatools.db.AbstractDBObject
oracle.javatools.db.AbstractBuildableObject
oracle.javatools.db.AbstractSystemObject
oracle.javatools.db.AbstractSchemaObject
oracle.javatools.db.Relation
public abstract class Relation
A Relation
represents the basic entity of a relational database. Examples of relations include tables and views.
A Relation contains a list of Column
s and a list of Constraint
s on the values for the columns in the Relation. Column and Constraint instances are managed by Relation instances; making a copy of a Relation imples making a copy of each Column and Constraint contained within the Relation.
Nested Class Summary |
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Nested classes/interfaces inherited from class oracle.javatools.db.AbstractDBObject |
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AbstractDBObject.ChildSupport |
Field Summary |
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Fields inherited from class oracle.javatools.db.AbstractSystemObject |
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m_listeners |
Fields inherited from interface oracle.javatools.db.DBObject |
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COMMENT |
Constructor Summary | |
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protected |
Relation() Constructs a new Relation. |
protected |
Relation(java.lang.String name, Schema schema) Constructs a new Relation with the specified name in the specified schema. |
Method Summary | |
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void |
addColumn(Column col) Adds one column to this relation. |
void |
addColumn(int index, Column col) Adds one column to this relation at the given index. |
void |
addConstraint(Constraint constraint) Adds a Constraint to this relation. |
Column |
getColumn(java.lang.String name) Retrieves one column by name. |
Column[] |
getColumns() Retrieves the list of columns contained in this relation. |
Constraint |
getConstraint(java.lang.String name) Retrieves a Constraint by name. |
Constraint[] |
getConstraints() Retrieves the list of constraints on this relation. |
protected void |
getOwnedObjectsImpl(java.util.Collection<DBObject> c, java.lang.String... types) Implementation first checks that the object has been built - then returns the collection from suprt.getOwnedObjectsImpl(). |
void |
removeColumn(Column col) Removes a column from this relation. |
void |
removeConstraint(Constraint constraint) Removes a Constraint from this relation. |
void |
setColumns(Column[] newCols) Sets the entire list of columns, replacing any that have previously been added. |
void |
setConstraints(Constraint[] constraints) Sets the list of constraints on this relation. |
Methods inherited from class oracle.javatools.db.AbstractSchemaObject |
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addObjectListener, copyToImpl, equalsImpl, getProperty, getSchema, removeObjectListener, setProperty, setSchema |
Methods inherited from class oracle.javatools.db.AbstractSystemObject |
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addObjectListener, fireObjectUpdated, getParent, removeObjectListener |
Methods inherited from class oracle.javatools.db.AbstractBuildableObject |
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checkInit, checkInit, getProperties, getReferenceIDsImpl, needsInitialization |
Methods inherited from class oracle.javatools.db.AbstractDBObject |
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changeParent, compareToImpl, copyObject, copyTo, copyTo, copyTo, copyTo, equals, findOwnedObject, findOwnedObject, findOwnedObject, getChildSupport, getID, getName, getOwnedObjects, getOwnedObjects, getProperty, getReferenceIDs, hashCode, includeOwnedObject, includesType, includesType, removeThisAsParent, replaceReferenceIDs, setID, setName, setProperties, toString |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Methods inherited from interface oracle.javatools.db.SystemObject |
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addObjectListener, fireObjectUpdated, removeObjectListener |
Methods inherited from interface oracle.javatools.db.DBObject |
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copyTo, copyTo, copyTo, findOwnedObject, findOwnedObject, getID, getName, getOwnedObjects, getOwnedObjects, getParent, getReferenceIDs, getType, replaceReferenceIDs, setID, setName |
Methods inherited from interface oracle.javatools.util.DynamicPropertySet |
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getProperties, getProperty, setProperties |
Constructor Detail |
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protected Relation()
protected Relation(java.lang.String name, Schema schema)
name
- a string containing the name of the new relationschema
- the schema containing the new relationMethod Detail |
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public void setColumns(Column[] newCols)
newCols
- an array containing the new list of columnspublic Column[] getColumns()
public void addColumn(Column col)
col
- the new column to addpublic void addColumn(int index, Column col)
index
- the index to add the new column atcol
- the new column to addpublic Column getColumn(java.lang.String name)
a
- string containing the desired columnnull
public void removeColumn(Column col)
col
- the column to removepublic Constraint[] getConstraints()
public void setConstraints(Constraint[] constraints)
constraints
- an array containing the list of constraintspublic Constraint getConstraint(java.lang.String name)
name
- a string containing the name of the constraintnull
if no constraint of that name exists in this relationpublic void addConstraint(Constraint constraint)
constraint
- the constraint to addpublic void removeConstraint(Constraint constraint)
constraint
- the constraint to removeprotected void getOwnedObjectsImpl(java.util.Collection<DBObject> c, java.lang.String... types)
AbstractBuildableObject
getOwnedObjectsImpl
in class AbstractBuildableObject
c
- a Collection of the apppropriate children.types
- a vararg of the type(s) to search forAbstractDBObject.includesType(java.lang.String, java.lang.String...)
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Oracle Fusion Middleware Java API Reference for Oracle Extension SDK Reference 11g Release 1 (11.1.1.7.2) E13403-10 |
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