org.datanucleus.store.rdbms.sql.expression
Class TemporalExpression

java.lang.Object
  extended by org.datanucleus.store.rdbms.sql.expression.SQLExpression
      extended by org.datanucleus.store.rdbms.sql.expression.TemporalExpression
Direct Known Subclasses:
TemporalLiteral

public class TemporalExpression
extends SQLExpression

Representation of temporal objects in java query languages. Can be used for anything based on java.util.Date.


Nested Class Summary
 
Nested classes/interfaces inherited from class org.datanucleus.store.rdbms.sql.expression.SQLExpression
SQLExpression.ColumnExpressionList
 
Field Summary
 
Fields inherited from class org.datanucleus.store.rdbms.sql.expression.SQLExpression
isParameter, LOCALISER, lowestOperator, mapping, st, stmt, subExprs, table
 
Constructor Summary
TemporalExpression(org.datanucleus.store.mapped.mapping.JavaTypeMapping mapping, java.lang.String functionName, java.util.List args)
          Generates statement as "FUNCTION_NAME(arg [,argN])".
TemporalExpression(org.datanucleus.store.mapped.mapping.JavaTypeMapping mapping, java.lang.String functionName, java.util.List args, java.util.List types)
          Generates statement as "FUNCTION_NAME(arg [AS type] [,argN [AS typeN]])".
TemporalExpression(SQLStatement stmt, SQLTable table, org.datanucleus.store.mapped.mapping.JavaTypeMapping mapping)
          Constructor for an SQL expression for a (field) mapping in a specified table.
 
Method Summary
 BooleanExpression eq(SQLExpression expr)
          Equality operator (equals to)
 BooleanExpression ge(SQLExpression expr)
          Relational operator (greater than or equals)
 BooleanExpression gt(SQLExpression expr)
          Relational operator (greater than)
 BooleanExpression in(SQLExpression expr)
          In expression.
 SQLExpression invoke(java.lang.String methodName, java.util.List args)
          Invocation of a method on this expression.
 BooleanExpression le(SQLExpression expr)
          Relational operator (lower than or equals)
 BooleanExpression lt(SQLExpression expr)
          Relational operator (lower than)
 BooleanExpression ne(SQLExpression expr)
          Not equality operator (not equals to)
 
Methods inherited from class org.datanucleus.store.rdbms.sql.expression.SQLExpression
add, and, cast, checkForAndCorrectParameterComparison, com, div, encloseInParentheses, eor, getJavaTypeMapping, getNumberOfSubExpressions, getSQLStatement, getSQLTable, ior, is, isParameter, mod, mul, neg, not, sub, toSQLText
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

TemporalExpression

public TemporalExpression(SQLStatement stmt,
                          SQLTable table,
                          org.datanucleus.store.mapped.mapping.JavaTypeMapping mapping)
Constructor for an SQL expression for a (field) mapping in a specified table.

Parameters:
stmt - The statement
table - The table in the statement
mapping - The mapping for the field

TemporalExpression

public TemporalExpression(org.datanucleus.store.mapped.mapping.JavaTypeMapping mapping,
                          java.lang.String functionName,
                          java.util.List args)
Generates statement as "FUNCTION_NAME(arg [,argN])".

Parameters:
mapping - Mapping to use
functionName - Name of function
args - SQLExpression list

TemporalExpression

public TemporalExpression(org.datanucleus.store.mapped.mapping.JavaTypeMapping mapping,
                          java.lang.String functionName,
                          java.util.List args,
                          java.util.List types)
Generates statement as "FUNCTION_NAME(arg [AS type] [,argN [AS typeN]])".

Parameters:
mapping - Mapping to use
functionName - Name of function
args - SQLExpression list
types - Optional String/SQLExpression list of types for the args
Method Detail

eq

public BooleanExpression eq(SQLExpression expr)
Description copied from class: SQLExpression
Equality operator (equals to)

Overrides:
eq in class SQLExpression
Parameters:
expr - the right-hand operand
Returns:
The type of an equality expression is a boolean

ne

public BooleanExpression ne(SQLExpression expr)
Description copied from class: SQLExpression
Not equality operator (not equals to)

Overrides:
ne in class SQLExpression
Parameters:
expr - the right-hand operand
Returns:
The type of an equality expression is a boolean

lt

public BooleanExpression lt(SQLExpression expr)
Description copied from class: SQLExpression
Relational operator (lower than)

Overrides:
lt in class SQLExpression
Parameters:
expr - the right-hand operand
Returns:
true if the value of the left-hand operand is less than the value of the right-hand operand, and otherwise is false.

le

public BooleanExpression le(SQLExpression expr)
Description copied from class: SQLExpression
Relational operator (lower than or equals)

Overrides:
le in class SQLExpression
Parameters:
expr - the right-hand operand
Returns:
true if the value of the left-hand operand is less than or equal to the value of the right-hand operand, and otherwise is false.

gt

public BooleanExpression gt(SQLExpression expr)
Description copied from class: SQLExpression
Relational operator (greater than)

Overrides:
gt in class SQLExpression
Parameters:
expr - the right-hand operand
Returns:
true if the value of the left-hand operand is greater than the value of the right-hand operand, and otherwise is false.

ge

public BooleanExpression ge(SQLExpression expr)
Description copied from class: SQLExpression
Relational operator (greater than or equals)

Overrides:
ge in class SQLExpression
Parameters:
expr - the right-hand operand
Returns:
true if the value of the left-hand operand is greater than or equal the value of the right-hand operand, and otherwise is false.

in

public BooleanExpression in(SQLExpression expr)
Description copied from class: SQLExpression
In expression. Return true if this is contained by expr

Overrides:
in in class SQLExpression
Parameters:
expr - the right-hand expression
Returns:
true if the left-hand expression is contained by the right-hand expression. Otherwise the result is false.

invoke

public SQLExpression invoke(java.lang.String methodName,
                            java.util.List args)
Description copied from class: SQLExpression
Invocation of a method on this expression.

Overrides:
invoke in class SQLExpression
Parameters:
methodName - name of the method to invoke
args - Args to this method (if any)
Returns:
the converted value


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