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CoherenceTM v3.3 Copyright© 2000-2007 by Oracle Corporation |
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java.lang.Objectcom.tangosol.util.Base
com.tangosol.util.processor.AbstractProcessor
com.tangosol.util.processor.ConditionalRemove
public class ConditionalRemove
ConditionalRemove is an EntryProcessor that performs an
Entry.remove
operation if the specified condition is satisfied.
InvocableMap | QueryMap |
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cache.invoke(key, new ConditionalRemove(filter)); (*) | if (filter.evaluate(cache.get(key)) cache.remove(key); |
cache.invokeAll(setKeys, new ConditionalRemove(filter)); | for (Object key : setKeys) if (filter.evaluate(cache.get(key)) cache.remove(key); |
cache.invokeAll(filter1, new ConditionalRemove(filter2); | for (Object key : cache.setKeys(filter1)) if (filter2.evaluate(cache.get(key)) cache.remove(key); |
cache.invokeAll(filter, new ConditionalRemove(AlwaysFilter.INSTANCE)); | Set setKeys = cache.keySet(filter); cache.keySet().removeAll(setKeys); |
Field Summary | |
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protected Filter |
m_filter
The underlying filter. |
protected boolean |
m_fReturn
Specifies whether or not a return value is required. |
Constructor Summary | |
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ConditionalRemove()
Default constructor (necessary for the ExternalizableLite interface). |
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ConditionalRemove(Filter filter)
Construct a ConditionalRemove processor that removes an InvocableMap entry if and only if the filter applied to the entry evaluates to true. |
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ConditionalRemove(Filter filter,
boolean fReturn)
Construct a ConditionalRemove processor that removes an InvocableMap entry if and only if the filter applied to the entry evaluates to true. |
Method Summary | |
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boolean |
equals(Object o)
Compare the ConditionalRemove with another object to determine equality. |
int |
hashCode()
Determine a hash value for the ConditionalRemove object according to the general Object.hashCode() contract. |
Object |
process(InvocableMap.Entry entry)
Process a Map.Entry object. |
void |
readExternal(DataInput in)
Restore the contents of this object by loading the object's state from the passed DataInput object. |
void |
readExternal(PofReader in)
Restore the contents of a user type instance by reading its state using the specified PofReader object. |
String |
toString()
Return a human-readable description for this ConditionalRemove. |
void |
writeExternal(DataOutput out)
Save the contents of this object by storing the object's state into the passed DataOutput object. |
void |
writeExternal(PofWriter out)
Save the contents of a POF user type instance by writing its state using the specified PofWriter object. |
Methods inherited from class com.tangosol.util.processor.AbstractProcessor |
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processAll |
Field Detail |
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protected Filter m_filter
protected boolean m_fReturn
Constructor Detail |
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public ConditionalRemove()
public ConditionalRemove(Filter filter)
process(com.tangosol.util.InvocableMap.Entry)
invocation does not return any
result.
filter
- the filter to evaluate an entrypublic ConditionalRemove(Filter filter, boolean fReturn)
filter
- the filter to evaluate an entryfReturn
- specifies whether or not the processor should return
the current value if it has not been removedMethod Detail |
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public Object process(InvocableMap.Entry entry)
process
in interface InvocableMap.EntryProcessor
entry
- the Entry to process
public boolean equals(Object o)
public int hashCode()
Object.hashCode()
contract.
public String toString()
public void readExternal(DataInput in) throws IOException
readExternal
in interface ExternalizableLite
in
- the DataInput stream to read data from in order to restore
the state of this object
IOException
- if an I/O exception occurs
NotActiveException
- if the object is not in its initial
state, and therefore cannot be deserialized intopublic void writeExternal(DataOutput out) throws IOException
writeExternal
in interface ExternalizableLite
out
- the DataOutput stream to write the state of this object to
IOException
- if an I/O exception occurspublic void readExternal(PofReader in) throws IOException
readExternal
in interface PortableObject
in
- the PofReader from which to read the object's state
IOException
- if an I/O error occurspublic void writeExternal(PofWriter out) throws IOException
writeExternal
in interface PortableObject
out
- the PofWriter to which to write the object's state
IOException
- if an I/O error occurs
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CoherenceTM v3.3 Copyright© 2000-2007 by Oracle Corporation |
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