org.apache.cayenne.exp
Class ListExpression

java.lang.Object
  org.apache.cayenne.exp.Expression
      org.apache.cayenne.exp.ListExpression

All Implemented Interfaces:

java.io.Serializable, XMLSerializable

Deprecated. since 1.2, replaced by ASTList.

public class ListExpression
extends Expression

An expression with a varying number of operands. Usually this is used for the list expressions when the list size may vary.

Author:

Andrus Adamchik

See Also:

Serialized Form

Field Summary

protected java.util.List

operands Deprecated.

Fields inherited from class org.apache.cayenne.exp.Expression

ADD, ALL, AND, ANY, AVG, BETWEEN, COUNT, DB_PATH, DIVIDE, EQUAL_TO, EXISTS, GREATER_THAN, GREATER_THAN_EQUAL_TO, IN, LESS_THAN, LESS_THAN_EQUAL_TO, LIKE, LIKE_IGNORE_CASE, LIST, MAX, MIN, MULTIPLY, NEGATIVE, NOT, NOT_BETWEEN, NOT_EQUAL_TO, NOT_IN, NOT_LIKE, NOT_LIKE_IGNORE_CASE, OBJ_PATH, OR, POSITIVE, PRUNED_NODE, RAW_SQL, SOME, SUBQUERY, SUBTRACT, SUM, type

Constructor Summary

ListExpression()
Deprecated.

ListExpression(int type)
Deprecated.

Method Summary

void	appendOperand(java.lang.Object value) Deprecated.
void	appendOperands(java.util.Collection operands) Deprecated.
void	encodeAsString(java.io.PrintWriter pw) Deprecated. Stores a String representation of Expression using a provided PrintWriter.
java.lang.Object	evaluate(java.lang.Object o) Deprecated. Calculates expression value with object as a context for path expressions.
protected void	flattenTree() Deprecated. Restructures expression to make sure that there are no children of the same type as this expression.
java.lang.Object	getOperand(int index) Deprecated. Returns a value of operand at index.
int	getOperandCount() Deprecated. Returns the number of operands currently in the list.
Expression	joinExp(int type, Expression exp) Deprecated. In case requested expression type is the same as internal type, creates and returns a copy of this expression with the internal list of operands expanded with the new expression.
Expression	notExp() Deprecated. Returns a logical NOT of current expression.
protected boolean	pruneNodeForPrunedChild(java.lang.Object prunedChild) Deprecated. Returns true if this node should be pruned from expression tree in the event a child is removed.
void	removeOperand(java.lang.Object value) Deprecated.
void	setOperand(int index, java.lang.Object value) Deprecated. Sets a value of operand at index.
Expression	shallowCopy() Deprecated. Creates a copy of this expression node, without copying children.
protected java.lang.Object	transformExpression(org.apache.commons.collections.Transformer transformer) Deprecated. A recursive method called from "transform" to do the actual transformation.

Methods inherited from class org.apache.cayenne.exp.Expression

andExp, deepCopy, encodeAsXML, equals, expName, expWithParameters, expWithParameters, filter, filterObjects, fromString, getType, match, orExp, setType, toString, transform, traverse, traverse

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

operands

protected java.util.List operands

Deprecated.

Constructor Detail

ListExpression

public ListExpression()

Deprecated.

ListExpression

public ListExpression(int type)

Deprecated.

Method Detail

evaluate

public java.lang.Object evaluate(java.lang.Object o)

Deprecated.

Description copied from class: Expression

Calculates expression value with object as a context for path expressions.

Specified by:

evaluate in class Expression

notExp

public Expression notExp()

Deprecated.

Description copied from class: Expression

Returns a logical NOT of current expression.

Specified by:

notExp in class Expression

flattenTree

protected void flattenTree()

Deprecated.

Description copied from class: Expression

Restructures expression to make sure that there are no children of the same type as this expression.

Specified by:

flattenTree in class Expression

pruneNodeForPrunedChild

protected boolean pruneNodeForPrunedChild(java.lang.Object prunedChild)

Deprecated.

Description copied from class: Expression

Returns true if this node should be pruned from expression tree in the event a child is removed.

Specified by:

pruneNodeForPrunedChild in class Expression

transformExpression

protected java.lang.Object transformExpression(org.apache.commons.collections.Transformer transformer)

Deprecated.

Description copied from class: Expression

A recursive method called from "transform" to do the actual transformation.

Overrides:

transformExpression in class Expression

Returns:

null, Expression.PRUNED_NODE or transformed expression.

shallowCopy

public Expression shallowCopy()

Deprecated.

Creates a copy of this expression node, without copying children.

Specified by:

shallowCopy in class Expression

Since:

1.1

getOperandCount

public int getOperandCount()

Deprecated.

Returns the number of operands currently in the list.

Specified by:

getOperandCount in class Expression

getOperand

public java.lang.Object getOperand(int index)

Deprecated.

Description copied from class: Expression

Returns a value of operand at index. Operand indexing starts at 0.

Specified by:

getOperand in class Expression

See Also:

Expression.getOperand(int)

setOperand

public void setOperand(int index,
                       java.lang.Object value)

Deprecated.

Description copied from class: Expression

Sets a value of operand at index. Operand indexing starts at 0.

Specified by:

setOperand in class Expression

appendOperand

public void appendOperand(java.lang.Object value)

Deprecated.

appendOperands

public void appendOperands(java.util.Collection operands)

Deprecated.

removeOperand

public void removeOperand(java.lang.Object value)

Deprecated.

joinExp

public Expression joinExp(int type,
                          Expression exp)

Deprecated.

In case requested expression type is the same as internal type, creates and returns a copy of this expression with the internal list of operands expanded with the new expression. If the type of expression is different from this, calls superclass's implementation.

Overrides:

joinExp in class Expression

encodeAsString

public void encodeAsString(java.io.PrintWriter pw)

Deprecated.

Description copied from class: Expression

Stores a String representation of Expression using a provided PrintWriter.

Specified by:

encodeAsString in class Expression

Since:

1.1