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java.lang.Objectorg.apache.empire.db.DBObject
org.apache.empire.db.DBExpr
org.apache.empire.db.DBColumnExpr
org.apache.empire.db.oracle.OracleRowNumExpr
public class OracleRowNumExpr
implements a column expression for the Oracle rownum function
Field Summary | |
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DBDatabase |
db
|
Fields inherited from class org.apache.empire.db.DBColumnExpr |
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attributes, beanPropertyName, DBCOLATTR_TITLE, DBCOLATTR_TYPE, options |
Fields inherited from class org.apache.empire.db.DBExpr |
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CTX_ALIAS, CTX_ALL, CTX_DEFAULT, CTX_FULLNAME, CTX_NAME, CTX_NOPARENTHESES, CTX_VALUE |
Constructor Summary | |
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OracleRowNumExpr(DBDatabase db)
Constructs a new OracleRowNumExpr object. |
Method Summary | |
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void |
addReferencedColumns(Set<DBColumn> list)
Internal function to obtain all DBColumnExpr-objects used by this expression. |
void |
addSQL(StringBuilder buf,
long context)
Creates the SQL-Command. |
Element |
addXml(Element parent,
long flags)
this helper function calls the DBColumnExpr.addXML(Element, long) method |
boolean |
equals(Object other)
|
DBDatabase |
getDatabase()
Returns the current DBDatabase object. |
DataType |
getDataType()
Returns the data type of the DBColumnExpr object. |
String |
getName()
Returns the column name. |
DBColumn |
getUpdateColumn()
Returns null. |
boolean |
isAggregate()
Always returns false |
Methods inherited from class org.apache.empire.db.DBColumnExpr |
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abs, append, as, as, asc, avg, cmp, coalesce, convertTo, convertTo, count, countDistinct, day, decode, decode, decode, decode, decode, decode, desc, detectDataType, divideBy, getAttribute, getBeanPropertyName, getControlType, getExprFromPhrase, getExprFromPhrase, getOptions, getSourceColumn, getTitle, in, indexOf, indexOf, indexOf, is, isBetween, isGreaterThan, isLessOrEqual, isMoreOrEqual, isNot, isNotBetween, isSmallerThan, length, like, like, likeLower, likeUpper, lower, max, min, minus, minus, month, multiplyWith, notIn, notLike, nvl, parenthesis, plus, plus, replace, reverse, round, setAttribute, setBeanPropertyName, setControlType, setOptions, setTitle, substring, substring, substring, substring, substring, substring, sum, toChar, toChar, trim, trimLeft, trimRight, trunc, upper, when, year |
Methods inherited from class org.apache.empire.db.DBExpr |
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getObjectValue, getValueClass |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public final DBDatabase db
Constructor Detail |
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public OracleRowNumExpr(DBDatabase db)
db
- the databaseMethod Detail |
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public DBDatabase getDatabase()
getDatabase
in class DBObject
public DataType getDataType()
getDataType
in interface ColumnExpr
getDataType
in class DBColumnExpr
DataType
public String getName()
getName
in interface ColumnExpr
getName
in class DBColumnExpr
public Element addXml(Element parent, long flags)
addXml
in class DBColumnExpr
parent
- the parent element to which to append the column descriptionflags
- currently not used
public DBColumn getUpdateColumn()
getUpdateColumn
in class DBColumnExpr
public boolean isAggregate()
isAggregate
in class DBColumnExpr
public void addSQL(StringBuilder buf, long context)
addSQL
in class DBExpr
buf
- the SQL-Commandcontext
- the current SQL-Command contextpublic void addReferencedColumns(Set<DBColumn> list)
DBExpr
addReferencedColumns
in class DBExpr
list
- list to which all used column expressions must be addedDBExpr.addReferencedColumns(Set)
public boolean equals(Object other)
equals
in class Object
Object.equals(Object)
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