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Oracle® Coherence Java API Reference Release 3.6.0.0 E15725-01 |
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java.lang.Object
com.tangosol.util.Base
com.tangosol.util.BitHelper
com.tangosol.util.ExternalizableHelper
com.tangosol.util.extractor.AbstractExtractor
com.tangosol.util.extractor.IdentityExtractor
public class IdentityExtractor
Trivial ValueExtractor implementation that does not actually extract anything from the passed value, but returns the value itself.
Field Summary | |
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static IdentityExtractor |
INSTANCE An instance of the IdentityExtractor. |
Fields inherited from class com.tangosol.util.extractor.AbstractExtractor |
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KEY, m_nTarget, VALUE |
Constructor Summary | |
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IdentityExtractor() Default constructor (necessary for the ExternalizableLite interface). |
Method Summary | |
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boolean |
equals(Object o) Compare the IdentityExtractor with another object to determine equality. |
Object |
extract(Object oTarget) Simply return the passed object. |
int |
hashCode() Determine a hash value for the IdentityExtractor object according to the general Object.hashCode() contract. |
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() Provide a human-readable description of this IdentityExtractor object. |
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.extractor.AbstractExtractor |
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compare, compareEntries, extractFromEntry, extractOriginalFromEntry |
Methods inherited from class com.tangosol.util.BitHelper |
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countBits, countBits, countBits, indexOfLSB, indexOfLSB, indexOfLSB, indexOfMSB, indexOfMSB, indexOfMSB, rotateLeft, rotateLeft, rotateLeft, rotateRight, rotateRight, rotateRight, toBitString, toBitString, toBitString |
Field Detail |
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public static final IdentityExtractor INSTANCE
Constructor Detail |
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public IdentityExtractor()
IdentityExtractor.INSTANCE
constant.Method Detail |
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public Object extract(Object oTarget)
extract
in interface ValueExtractor
extract
in class AbstractExtractor
oTarget
- an Object to retrieve the value frompublic boolean equals(Object o)
equals
in interface ValueExtractor
equals
in interface Comparator
o
- the reference object with which to compareObject.equals(java.lang.Object)
, Object.hashCode()
public int hashCode()
Object.hashCode()
contract.hashCode
in interface ValueExtractor
public String toString()
toString
in interface ValueExtractor
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 objectIOException
- if an I/O exception occursNotActiveException
- 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 toIOException
- 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 stateIOException
- 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 stateIOException
- if an I/O error occurs
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Oracle® Coherence Java API Reference Release 3.6.0.0 E15725-01 |
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