Java Doc for Column.java in  » Database-ORM » openjpa » org » apache » openjpa » jdbc » schema » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database ORM » openjpa » org.apache.openjpa.jdbc.schema   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.openjpa.jdbc.schema.ReferenceCounter       org.apache.openjpa.jdbc.schema.Column Column public class Column extends ReferenceCounter (Code) Represents a database column. Closely aligned with the column information available from DatabaseMetaData . author:    Abe White author:    Stephen Kim Field Summary final public static  int FLAG_DIRECT_INSERT      final public static  int FLAG_DIRECT_UPDATE      final public static  int FLAG_FK_INSERT      final public static  int FLAG_FK_UPDATE      final public static  int FLAG_PK_JOIN      final public static  int FLAG_UNINSERTABLE      final public static  int FLAG_UNUPDATABLE      Constructor Summary public   Column()      Default constructor. public   Column(String name, Table table)      Constructor. Method Summary public  void copy(Column from)      Copy information from the given column to this one. public  boolean equalsColumn(Column col)      Tests compatibility. public  String getComment()      public  int getDecimalDigits()      Return the number of decimal digits for the column, if applicable. public  Object getDefault()      Return the default value set for this column, if any. public  String getDefaultString()      Return the default value set for the column, if any. public  String getDescription()      Useful for debugging. public  boolean getFlag(int flag)      Flags are used for bookkeeping information. public  String getFullName()      Return the column's full name, in the form <table>.<name>. public  int getIndex()      Return the column's 0-based index in the owning table. public  int getJavaType()      The Java type the data in this column is treated as, from JavaTypes or JavaSQLTypes . public  String getName()      Return the column's name. public  String getSchemaName()      The column's schema name. public  int getSize()      Return the column's size. public  Table getTable()      Return the table for the column. public  String getTableName()      The column's table name. public  String getTarget()      The name of the column this column joins to, if any. public  String getTargetField()      The name of the field this column joins to, if any. public  int getType()      Return the column's SQL type. public  String getTypeName()      The database-specific SQL type of this column. public  VersionStrategy getVersionStrategy()      public  boolean hasComment()      public  boolean isAutoAssigned()      Whether this column is auto-assigned a value on insert. public  boolean isCompatible(int type, String typeName, int size, int decimals)      Return true if this column is compatible with the given JDBC type from Types and size. public  boolean isLob()      Whether this column is a LOB. public  boolean isNotNull()      Return true if this is a NOT NULL column. public  boolean isNotNullExplicit()      Whether the not-null property has been set. public  boolean isPrimaryKey()      Return true if this column belongs to the table's primary key. public  boolean isRelationId()      Whether this column stores some form of serialized identity value for a related record. public  boolean isXML()      Whether this column is an XML type.  void remove()      Called when the column is removed from its table. public  void resetTableName(String name)      public  void setAutoAssigned(boolean autoAssign)      Whether this column is auto-incrementing. public  void setComment(String comment)      public  void setDecimalDigits(int digits)      Set the number of decimal digits for the column. public  void setDefault(Object def)      Set the default value for the column. public  void setDefaultString(String def)      Set the default value for the column. public  void setFlag(int flag, boolean on)      Flags are used for bookkeeping information.  void setIndex(int index)      Set the column's 0-based index in the owning table. public  void setJavaType(int type)      The Java type the data in this column is treated as, from JavaTypes or JavaSQLTypes . public  void setName(String name)      Set the column's name. public  void setNotNull(boolean notNull)      Set whether this is a NOT NULL column.  void setPrimaryKey(boolean pk)      Set whether this column belongs to the table's primary key. public  void setRelationId(boolean rel)      Whether this column stores some form of serialized identity value for a related record. public  void setSchemaName(String name)      The column's schema name. public  void setSize(int size)      Set the column's size. public  void setTableName(String name)      The column's table name. public  void setTarget(String target)      The name of the column this column joins to, if any. public  void setTargetField(String target)      The name of the field this column joins to, if any. public  void setType(int sqlType)      Set the column's SQL type. public  void setTypeName(String typeName)      The database-specific SQL type of this column. public  void setVersionStrategy(VersionStrategy strategy)      public  String toString()      Returns the column name. Field Detail FLAG_DIRECT_INSERT final public static int FLAG_DIRECT_INSERT(Code) FLAG_DIRECT_UPDATE final public static int FLAG_DIRECT_UPDATE(Code) FLAG_FK_INSERT final public static int FLAG_FK_INSERT(Code) FLAG_FK_UPDATE final public static int FLAG_FK_UPDATE(Code) FLAG_PK_JOIN final public static int FLAG_PK_JOIN(Code) FLAG_UNINSERTABLE final public static int FLAG_UNINSERTABLE(Code) FLAG_UNUPDATABLE final public static int FLAG_UNUPDATABLE(Code) Constructor Detail Column public Column()(Code) Default constructor. Column public Column(String name, Table table)(Code) Constructor. Parameters:   name - the name of the column Parameters:   table - the column's table Method Detail copy public void copy(Column from)(Code) Copy information from the given column to this one. equalsColumn public boolean equalsColumn(Column col)(Code) Tests compatibility. getComment public String getComment()(Code) getDecimalDigits public int getDecimalDigits()(Code) Return the number of decimal digits for the column, if applicable. getDefault public Object getDefault()(Code) Return the default value set for this column, if any. If only a default string has been set, attempts to convert it to the right type based on the Java type set for this column. getDefaultString public String getDefaultString()(Code) Return the default value set for the column, if any. getDescription public String getDescription()(Code) Useful for debugging. getFlag public boolean getFlag(int flag)(Code) Flags are used for bookkeeping information. They are ignored at runtime. getFullName public String getFullName()(Code) Return the column's full name, in the form <table>.<name>. getIndex public int getIndex()(Code) Return the column's 0-based index in the owning table. getJavaType public int getJavaType()(Code) The Java type the data in this column is treated as, from JavaTypes or JavaSQLTypes . getName public String getName()(Code) Return the column's name. getSchemaName public String getSchemaName()(Code) The column's schema name. getSize public int getSize()(Code) Return the column's size. getTable public Table getTable()(Code) Return the table for the column. getTableName public String getTableName()(Code) The column's table name. getTarget public String getTarget()(Code) The name of the column this column joins to, if any. Used for mapping. getTargetField public String getTargetField()(Code) The name of the field this column joins to, if any. Used for mapping. getType public int getType()(Code) Return the column's SQL type. This will be one of the type constants defined in Types . getTypeName public String getTypeName()(Code) The database-specific SQL type of this column. getVersionStrategy public VersionStrategy getVersionStrategy()(Code) hasComment public boolean hasComment()(Code) isAutoAssigned public boolean isAutoAssigned()(Code) Whether this column is auto-assigned a value on insert. isCompatible public boolean isCompatible(int type, String typeName, int size, int decimals)(Code) Return true if this column is compatible with the given JDBC type from Types and size. isLob public boolean isLob()(Code) Whether this column is a LOB. isNotNull public boolean isNotNull()(Code) Return true if this is a NOT NULL column. isNotNullExplicit public boolean isNotNullExplicit()(Code) Whether the not-null property has been set. isPrimaryKey public boolean isPrimaryKey()(Code) Return true if this column belongs to the table's primary key. isRelationId public boolean isRelationId()(Code) Whether this column stores some form of serialized identity value for a related record. This makes the column dependent on the knowing the final identity of the relation before the column value is set. isXML public boolean isXML()(Code) Whether this column is an XML type. remove void remove()(Code) Called when the column is removed from its table. Removes the column from all table constraints and indexes, then invalidates it. resetTableName public void resetTableName(String name)(Code) Reset the table name with the fully qualified table name which includes the schema name setAutoAssigned public void setAutoAssigned(boolean autoAssign)(Code) Whether this column is auto-incrementing. setComment public void setComment(String comment)(Code) setDecimalDigits public void setDecimalDigits(int digits)(Code) Set the number of decimal digits for the column. setDefault public void setDefault(Object def)(Code) Set the default value for the column. setDefaultString public void setDefaultString(String def)(Code) Set the default value for the column. setFlag public void setFlag(int flag, boolean on)(Code) Flags are used for bookkeeping information. They are ignored at runtime. setIndex void setIndex(int index)(Code) Set the column's 0-based index in the owning table. setJavaType public void setJavaType(int type)(Code) The Java type the data in this column is treated as, from JavaTypes or JavaSQLTypes . setName public void setName(String name)(Code) Set the column's name. You can only call this method on columns whose table object is not set. setNotNull public void setNotNull(boolean notNull)(Code) Set whether this is a NOT NULL column. setPrimaryKey void setPrimaryKey(boolean pk)(Code) Set whether this column belongs to the table's primary key. setRelationId public void setRelationId(boolean rel)(Code) Whether this column stores some form of serialized identity value for a related record. This makes the column dependent on the knowing the final identity of the relation before the column value is set. setSchemaName public void setSchemaName(String name)(Code) The column's schema name. You can only call this method on columns whose table object is not set. setSize public void setSize(int size)(Code) Set the column's size. setTableName public void setTableName(String name)(Code) The column's table name. You can only call this method on columns whose table object is not set. setTarget public void setTarget(String target)(Code) The name of the column this column joins to, if any. Used for mapping. setTargetField public void setTargetField(String target)(Code) The name of the field this column joins to, if any. Used for mapping. setType public void setType(int sqlType)(Code) Set the column's SQL type. This should be one of the type constants defined in Types . setTypeName public void setTypeName(String typeName)(Code) The database-specific SQL type of this column. setVersionStrategy public void setVersionStrategy(VersionStrategy strategy)(Code) toString public String toString()(Code) Returns the column name. Methods inherited from org.apache.openjpa.jdbc.schema.ReferenceCounter public void deref()(Code)(Java Doc) public int getRefCount()(Code)(Java Doc) public void ref()(Code)(Java Doc) Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)