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java.lang.Objectorg.apache.cayenne.exp.Expression
org.apache.cayenne.exp.ListExpression
ASTList
.
public class ListExpression
An expression with a varying number of operands. Usually this is used for the list expressions when the list size may vary.
Field Summary | |
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protected java.util.List |
operands
Deprecated. |
Fields inherited from class org.apache.cayenne.exp.Expression |
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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 | |
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ListExpression()
Deprecated. |
|
ListExpression(int type)
Deprecated. |
Method Summary | |
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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 |
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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 |
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clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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protected java.util.List operands
Constructor Detail |
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public ListExpression()
public ListExpression(int type)
Method Detail |
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public java.lang.Object evaluate(java.lang.Object o)
Expression
evaluate
in class Expression
public Expression notExp()
Expression
notExp
in class Expression
protected void flattenTree()
Expression
flattenTree
in class Expression
protected boolean pruneNodeForPrunedChild(java.lang.Object prunedChild)
Expression
pruneNodeForPrunedChild
in class Expression
protected java.lang.Object transformExpression(org.apache.commons.collections.Transformer transformer)
Expression
transformExpression
in class Expression
public Expression shallowCopy()
shallowCopy
in class Expression
public int getOperandCount()
getOperandCount
in class Expression
public java.lang.Object getOperand(int index)
Expression
index
. Operand indexing starts at 0.
getOperand
in class Expression
Expression.getOperand(int)
public void setOperand(int index, java.lang.Object value)
Expression
index
. Operand indexing starts at 0.
setOperand
in class Expression
public void appendOperand(java.lang.Object value)
public void appendOperands(java.util.Collection operands)
public void removeOperand(java.lang.Object value)
public Expression joinExp(int type, Expression exp)
joinExp
in class Expression
public void encodeAsString(java.io.PrintWriter pw)
Expression
encodeAsString
in class Expression
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