org.apache.cayenne.exp.parser
Class ASTList

java.lang.Object
  org.apache.cayenne.exp.Expression
      org.apache.cayenne.exp.parser.SimpleNode
          org.apache.cayenne.exp.parser.ASTList

All Implemented Interfaces:

java.io.Serializable, Node, XMLSerializable

public class ASTList
extends SimpleNode

A leaf expression representing an immutable collection of values.

Since:

1.1

Author:

Andrei Adamchik

See Also:

Serialized Form

Field Summary

protected java.lang.Object[]

values

Fields inherited from class org.apache.cayenne.exp.parser.SimpleNode

children, id, parent

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

ASTList()

ASTList(java.util.Collection objects)
Initializes a list expression with a Java Collection

ASTList(java.util.Iterator objects)
Initializes a list expression with a Java Iterator.

ASTList(java.lang.Object[] objects)
Initializes a list expression with an Object[].

Method Summary

void	encodeAsString(java.io.PrintWriter pw) Stores a String representation of Expression using a provided PrintWriter.
protected java.lang.Object	evaluateNode(java.lang.Object o) Evaluates itself with object, pushing result on the stack.
protected java.lang.String	getExpressionOperator(int index)
java.lang.Object	getOperand(int index) Returns a value of operand at index.
int	getOperandCount() Returns a count of operands of this expression.
int	getType() Returns a type of expression.
void	jjtClose() Called after all the child nodes have been added.
void	setOperand(int index, java.lang.Object value) Sets a value of operand at index.
protected void	setValues(java.lang.Object value) Sets an internal collection of values.
Expression	shallowCopy() Creates a copy of this expression node, without copying children.

Methods inherited from class org.apache.cayenne.exp.parser.SimpleNode

encodeAsEscapedString, encodeScalarAsString, evaluate, evaluateChild, expName, flattenTree, jjtAddChild, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, notExp, pruneNodeForPrunedChild, unwrapChild, wrapChild

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

andExp, deepCopy, encodeAsXML, equals, expWithParameters, expWithParameters, filter, filterObjects, fromString, joinExp, match, orExp, setType, toString, transform, transformExpression, traverse, traverse

Methods inherited from class java.lang.Object

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

Field Detail

values

protected java.lang.Object[] values

Constructor Detail

ASTList

public ASTList()

ASTList

public ASTList(java.lang.Object[] objects)

Initializes a list expression with an Object[].

ASTList

public ASTList(java.util.Collection objects)

Initializes a list expression with a Java Collection

ASTList

public ASTList(java.util.Iterator objects)

Initializes a list expression with a Java Iterator.

Method Detail

shallowCopy

public Expression shallowCopy()

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

Specified by:

shallowCopy in class Expression

evaluateNode

protected java.lang.Object evaluateNode(java.lang.Object o)
                                 throws java.lang.Exception

Description copied from class: SimpleNode

Evaluates itself with object, pushing result on the stack.

Specified by:

evaluateNode in class SimpleNode

Throws:

java.lang.Exception

getType

public int getType()

Description copied from class: Expression

Returns a type of expression. Most common types are defined as public static fields of this interface.

Overrides:

getType in class Expression

getExpressionOperator

protected java.lang.String getExpressionOperator(int index)

Specified by:

getExpressionOperator in class SimpleNode

encodeAsString

public void encodeAsString(java.io.PrintWriter pw)

Description copied from class: Expression

Stores a String representation of Expression using a provided PrintWriter.

Overrides:

encodeAsString in class SimpleNode

getOperandCount

public int getOperandCount()

Description copied from class: Expression

Returns a count of operands of this expression. In real life there are unary (count == 1), binary (count == 2) and ternary (count == 3) expressions.

Overrides:

getOperandCount in class SimpleNode

getOperand

public java.lang.Object getOperand(int index)

Description copied from class: Expression

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

Overrides:

getOperand in class SimpleNode

setOperand

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

Description copied from class: Expression

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

Overrides:

setOperand in class SimpleNode

setValues

protected void setValues(java.lang.Object value)

Sets an internal collection of values. Value argument can be an Object[], a Collection or an iterator.

jjtClose

public void jjtClose()

Description copied from interface: Node

Called after all the child nodes have been added.

Specified by:

jjtClose in interface Node

Overrides:

jjtClose in class SimpleNode