Package org.apache.cayenne.exp.parser

Class PatternMatchNode

java.lang.Object

org.apache.cayenne.exp.Expression

org.apache.cayenne.exp.parser.SimpleNode

org.apache.cayenne.exp.parser.ConditionNode

org.apache.cayenne.exp.parser.PatternMatchNode

All Implemented Interfaces:

Serializable, Node, XMLSerializable

Direct Known Subclasses:

ASTLike, ASTLikeIgnoreCase, ASTNotLike, ASTNotLikeIgnoreCase

public abstract class PatternMatchNode
extends ConditionNode

Superclass of pattern matching nodes. Assumes that subclass is a binary expression with the second operand being a pattern.

Since:

1.1

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected char	escapeChar
protected boolean	ignoringCase
protected Pattern	pattern
protected boolean	patternCompiled

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

children, id, parent

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

ADD, AND, ASTERISK, BETWEEN, BITWISE_AND, BITWISE_LEFT_SHIFT, BITWISE_NOT, BITWISE_OR, BITWISE_RIGHT_SHIFT, BITWISE_XOR, CUSTOM_OP, DB_PATH, DBID_PATH, DIVIDE, ENCLOSING_OBJECT, EQUAL_TO, EXISTS, FALSE, FULL_OBJECT, FUNCTION_CALL, GREATER_THAN, GREATER_THAN_EQUAL_TO, IN, LESS_THAN, LESS_THAN_EQUAL_TO, LIKE, LIKE_IGNORE_CASE, LIST, MULTIPLY, NEGATIVE, NOT, NOT_BETWEEN, NOT_EQUAL_TO, NOT_EXISTS, NOT_IN, NOT_LIKE, NOT_LIKE_IGNORE_CASE, OBJ_PATH, OR, PRUNED_NODE, SUBQUERY, SUBTRACT, TRUE, type

Method Summary

Modifier and Type	Method	Description
protected void	appendChildrenAsEJBQL(List<Object> parameterAccumulator, Appendable out, String rootId)	Encodes child of this node with specified index to EJBQL
char	getEscapeChar()	This method will return an escape character for the like clause.
protected Pattern	getPattern()
boolean	isIgnoringCase()
void	jjtAddChild(Node n, int i)	This method tells the node to add its argument to the node's list of children.
protected boolean	matchPattern(String string)
void	setEscapeChar(char value)	This method allows the setting of the escape character.

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

evaluateNode, evaluateSubNode, getRequiredChildrenCount, jjtSetParent

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

appendAsEJBQL, appendAsEJBQL, appendAsEscapedString, appendAsString, appendScalarAsString, connectChildren, encodeScalarAsEJBQL, evaluate, evaluateChild, expName, flattenTree, getEJBQLExpressionOperator, getExpressionOperator, getOperand, getOperandCount, getPathAliases, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, notExp, pruneNodeForPrunedChild, setOperand, unwrapChild, wrapChild

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

andExp, andExp, deepCopy, encodeAsXML, equals, filter, filterObjects, first, getType, hashCode, joinExp, joinExp, match, orExp, orExp, params, params, paramsArray, setType, shallowCopy, toEJBQL, toEJBQL, toString, transform, transformExpression, traverse, traverse

Methods inherited from class java.lang.Object

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

Field Details

pattern

protected transient Pattern pattern

patternCompiled

protected transient boolean patternCompiled

ignoringCase

protected boolean ignoringCase

escapeChar

protected char escapeChar

Method Details

getEscapeChar

public char getEscapeChar()

This method will return an escape character for the like clause. The escape character will eventually end up in the query as ...(t0.foo LIKE ? {escape '|'}) where the pipe symbol is the escape character.

Note that having no escape character is represented as the character 0.

setEscapeChar

public void setEscapeChar(char value)

This method allows the setting of the escape character. The escape character can be used in a LIKE clause. The character 0 signifies no escape character. The escape character '?' is disallowed.

isIgnoringCase

public boolean isIgnoringCase()

Since:

4.2

matchPattern

protected boolean matchPattern(String string)

getPattern

protected Pattern getPattern()

jjtAddChild

public void jjtAddChild(Node n,
 int i)

Description copied from interface: Node

This method tells the node to add its argument to the node's list of children.

Specified by:

jjtAddChild in interface Node

Overrides:

jjtAddChild in class SimpleNode

appendChildrenAsEJBQL

protected void appendChildrenAsEJBQL(List<Object> parameterAccumulator,
 Appendable out,
 String rootId)
                              throws IOException

Description copied from class: SimpleNode

Encodes child of this node with specified index to EJBQL

Overrides:

appendChildrenAsEJBQL in class SimpleNode

Throws:

IOException