java.lang.Object
- com.mckoi.database.interpret.TableSelectExpression

All Implemented Interfaces:: StatementTreeObject, java.io.Serializable, java.lang.Cloneable

public final class TableSelectExpression
extends java.lang.Object
implements java.io.Serializable, StatementTreeObject, java.lang.Cloneable

A container object for the a table select expression, eg.

               SELECT [columns]
                 FROM [tables]
                WHERE [search_clause]
             GROUP BY [column]
               HAVING [search_clause]
 [composite_function] [table_select_expression]

Note that a TableSelectExpression can be nested in the various clauses of this object.

See Also:: Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`java.util.ArrayList`	`columns`	The list of columns to select from.
`(package private) int`	`composite_function`	If there is a composite function this is set to the composite enumeration from CompositeTable.
`boolean`	`distinct`	True if we only search for distinct elements.
`FromClause`	`from_clause`	The from clause.
`java.util.ArrayList`	`group_by`	The list of columns to group by.
`Variable`	`group_max`	The group max variable or null if no group max.
`SearchExpression`	`having_clause`	The having clause.
`(package private) boolean`	`is_composite_all`	If this is an ALL composite (no removal of duplicate rows) it is true.
`(package private) TableSelectExpression`	`next_composite`	The composite table itself.
`(package private) static long`	`serialVersionUID`
`SearchExpression`	`where_clause`	The where clause.

Constructor Summary

Constructors
Constructor Description

TableSelectExpression()
Constructor.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`chainComposite(TableSelectExpression expression, java.lang.String composite, boolean is_all)`	Chains a new composite function to this expression.
`java.lang.Object`	`clone()`	Performs a DEEP clone of this object if it is mutable, or a deep clone of its mutable members.
`private static void`	`prepareAllInList(java.util.List list, ExpressionPreparer preparer)`	Prepares all the expressions in the list.
`void`	`prepareExpressions(ExpressionPreparer preparer)`	Prepares all expressions in this statement tree object by passing the ExpressionPreparer object to the 'prepare' method of the expression.

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - serialVersionUID
```
static final long serialVersionUID
```
    See Also:
    
    Constant Field Values
  - distinct
```
public boolean distinct
```
    True if we only search for distinct elements.
  - columns
```
public java.util.ArrayList columns
```
    The list of columns to select from. (SelectColumn)
  - from_clause
```
public FromClause from_clause
```
    The from clause.
  - where_clause
```
public SearchExpression where_clause
```
    The where clause.
  - group_by
```
public java.util.ArrayList group_by
```
    The list of columns to group by. (ByColumn)
  - group_max
```
public Variable group_max
```
    The group max variable or null if no group max.
  - having_clause
```
public SearchExpression having_clause
```
    The having clause.
  - composite_function
```
int composite_function
```
    If there is a composite function this is set to the composite enumeration from CompositeTable.
  - is_composite_all
```
boolean is_composite_all
```
    If this is an ALL composite (no removal of duplicate rows) it is true.
  - next_composite
```
TableSelectExpression next_composite
```
    The composite table itself.
- Constructor Detail
  - TableSelectExpression
```
public TableSelectExpression()
```
    Constructor.
- Method Detail
  - chainComposite
```
public void chainComposite(TableSelectExpression expression,
                           java.lang.String composite,
                           boolean is_all)
```
    Chains a new composite function to this expression. For example, if this expression is a UNION ALL with another expression it would be set through this method.
  - prepareAllInList
```
private static void prepareAllInList(java.util.List list,
                                     ExpressionPreparer preparer)
                              throws DatabaseException
```
    Prepares all the expressions in the list.
    
    Throws:
    
    DatabaseException
  - prepareExpressions
```
public void prepareExpressions(ExpressionPreparer preparer)
                        throws DatabaseException
```
    Description copied from interface: StatementTreeObject
    
    Prepares all expressions in this statement tree object by passing the ExpressionPreparer object to the 'prepare' method of the expression.
    
    Specified by:
    
    prepareExpressions in interface StatementTreeObject
    
    Throws:
    
    DatabaseException
  - clone
```
public java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException
```
    Description copied from interface: StatementTreeObject
    
    Performs a DEEP clone of this object if it is mutable, or a deep clone of its mutable members. If the object is immutable then it may return 'this'.
    
    Specified by:
    
    clone in interface StatementTreeObject
    
    Overrides:
    
    clone in class java.lang.Object
    
    Throws:
    
    java.lang.CloneNotSupportedException

Class TableSelectExpression

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

serialVersionUID

distinct

columns

from_clause

where_clause

group_by

group_max

having_clause

composite_function

is_composite_all

next_composite

Constructor Detail

TableSelectExpression

Method Detail

chainComposite

prepareAllInList

prepareExpressions

clone